Answer:
Sulfuric Acid, H2SO4 is a chemical compound made up of two hydrogen atom, one sulfer atom, and four oxygen atoms.
Explanation:
It contains 2 hydrogens (H2), 1 Sulphur (S) AND 4 Oxygens (O4)
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Module 3 Discussion!
After reading Ch.12 and 13 of the text (The essentials of Finance and Accounting for nonfinancial managers/ Third Edition) on Strategy and Financial Forecasting, watching the SWOT video based on Paley’s Products from the Ratio Analysis in Module 2 and the additional narrative information in Appendix C, Phase
Create a SWOT analysis that will reflect the TOWS analysis as described in Ch. 12 of the text. The purpose of the SWOT analysis is to lay out several issues and possibilities to be considered in Paley’s strategic planning. The strengths and weaknesses are internal issues, whereas the opportunities and threats are external.
The second part of the analysis is to create actions based on the SWOTs. This is sometimes called a TOWS analysis and is done by comparing the boxes, two at a time:
Offensive actions come from strengths that link to opportunities, so a specific strength can be applied to exploit an opportunity.
Adjusting actions come from addressing weaknesses, which then can be used to exploit opportunities that previously had not been possible.
Turnaround actions come from weaknesses that link to threats. These are high-risk issues where a priority needs to be given to addressing the weakness to minimize the vulnerability.
Defensive actions come from threats that link to strengths. These are latent issues because if the threat materializes, an already-existing strength is available to counter it.
Additional actions can be included to address other issues not directly identified in the SWOTs.
3. From the actions identified in part 2, pick 3-5 strategic actions that you feel Paley must achieve or at least start in the upcoming year and state your reasons for including them.
Attach your completed SWOT form and list of strategic actions with supporting logic and facts from the case as your answer for this discussion question. These actions are the foundation for the strategic plan
SWOT Analysis Strengths- Paley’s Products has a low overhead cost with the company operating at a high level of efficiency, resulting in competitive pricing.- They have a team of experienced employees who have worked in the industry for several years.- They have a variety of products in the portfolio that can satisfy customers from different sectors.- They are reputable and have a loyal customer base.Weaknesses- They have been slow to adopt new technology, and this may be a disadvantage to the company.- Limited marketing and sales promotion are affecting their sales revenue.-
They depend on a few key customers for the bulk of their sales revenue, leaving them vulnerable to market changes.Opportunities- Expansion of the product line to include unique products.- The establishment of strategic partnerships with other businesses in the industry.- Exploration of new markets, such as international markets.- Improvement of marketing techniques to increase brand awareness.Threats- Changes in consumer preferences towards environmentally friendly products.- Increase in competition from other businesses in the industry.- Fluctuating market prices for raw materials that may lead to price increases.
Strategic Actions to be taken by Paley Products1. Development of an E-commerce platform to allow online transactions with customers. The E-commerce platform will enable Paley to reach a wider customer base, expand its reach, and increase sales revenue.2. Investment in the research and development of new environmentally friendly products. Paley will remain competitive and cater to the needs of consumers who prefer green products.3. Establishment of strategic partnerships with other businesses in the industry to leverage the strength of other companies in the industry and to develop new products or increase market share.4. Improvement of marketing techniques to increase brand awareness and improve visibility. A marketing strategy that incorporates social media and other digital channels can help promote the brand to potential customers.5. Expansion into international markets. This will enable Paley to diversify its customer base and generate more revenue. Paley can start by targeting nearby countries, then expand globally as they gain more experience and financial stability.
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What is the standard Hz rate (cycles per second) in the US?
20 Hz
80 Hz
60 Hz
50 Hz
Answer:
The standard in the United States is 120-volt and 60Hz AC electricity.
Explanation:
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During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.02 s, how high above the point where it hits the bat does it rise? Assume when it hits the ground it hits at exactly the level of the bat. The acceleration of gravity is 9.8 m/s 2 . Answer in units of
Answer:
d = 19.796m
Explanation:
Since the ball is in the air for 4.02 seconds, the ball should reach the maximum point from the ground in half the total time, therefore, t=2.01s to reach maximum height. At the maximum height, the velocity in the y-direction is 0.
So we know t=2.01, vi=0, g=a=9.8m/s and we are solving for d.
Next, you look for a kinematic equation that has these parameters and the one you should choose is:
\(d=vt+\frac{1}{2}at^2\)
Now by substituting values in, we get
\(d=(0\frac{m}{s})*(2.01s)+\frac{1}{2}(9.8\frac{m}{s^2})(2.01)^2\)
d = 19.796m
An endothermic reaction is one in which heat is transferred from the surroundings to the reactants.
Please select the best answer from the choices provided
T
F
Answer:
An endothermic reaction is one in which heat is transferred from the surroundings to the reactants.------- true
Answer:
T . Energy is transferred to the reactants
Explanation:
The LANDSAT C Earth resources satellite has a nearly circular orbit with an eccentricity of 0.00187. At perigee, the satellite is at an altitude (measured from the earth's surface) of 550km. round to a whole number a) Calculate its altitude at apogee b) Calculate its period c) Calculate the velocity at perigee
A) The altitude at apogee is 552.7 km, b) its period is 8876.2 seconds, c) the velocity at perigee is 7223.4 m/s.
What is altitude?Altitude is the height of an object or point in relation to sea level or ground level. It is usually measured in meters or feet. Altitude is generally used when referring to points on the Earth's surface, while elevation is used for points above the surface, such as the summit of a mountain or hill.
a) Calculate its altitude at apogee: The orbital eccentricity of a satellite can be used to calculate its altitude at apogee by using the following equation: Apogee = Perigee / (1 - eccentricity)
Using the given information, we can calculate the altitude at apogee as follows: Apogee = 550km / (1 - 0.00187)
Apogee = 552.7 km (rounded to the nearest whole number)
b) Calculate its period: The orbital period of a satellite can be calculated using the following equation: Period = 2π √(a³ / μ)
where a is the semi-major axis of the orbit and μ is the gravitational parameter of the central body.
In this case, the semi-major axis of the orbit is given by:
a = (Perigee + Apogee) / 2
a = (550km + 552.7km) / 2
a = 551.35km
The gravitational parameter of the Earth is given by: μ = 3.986004418 x 10¹⁴ m³/s²
We can now calculate the period of the orbit as follows:
Period = 2π √(551.35km³ / 3.986004418 x 10¹⁴ m³/s²)
Period = 8876.2 seconds (rounded to the nearest whole number)
c) Calculate the velocity at perigee: The velocity of a satellite at perigee can be calculated using the following equation: V = √(μ (2/r - 1/a)), where a is the semi-major axis of the orbit, r is the radius of the orbit at perigee, and μ is the gravitational parameter of the central body.
Using the given information, we can calculate the orbital velocity at perigee as follows:
V = √(3.986004418 x 10¹⁴ m³/s² (2/550km - 1/551.35km))
V = 7223.4 m/s (rounded to the nearest whole number)
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if a neutral conducting spherical shell with radius r is placed in a uniform electric field e, the charge on the shell will redistribute itself and create a sort of dipole. (a) show that the external field due to the redistributed charge on the shell is in fact exactly equal to the field due to an idealized dipole at the center of the shell. what is the strength p of the dipole?
To determine the strength of the dipole created by the redistributed charge on the conducting spherical shell, we can consider the concept of electric dipole moment.
The electric dipole moment (p) is defined as the product of the magnitude of either charge (q) in the dipole and the separation distance (d) between them:
p = q * d
In this case, the dipole moment arises from the redistribution of charge on the conducting spherical shell. The magnitude of the charge on the shell will depend on the electric field (E) it experiences.
Now, let's analyze the scenario step by step:
1. The electric field (E) is uniform and acts on the conducting spherical shell of radius (r).
2. Due to the presence of the electric field, charges on the shell will redistribute themselves until equilibrium is reached.
3. The redistribution of charges will result in a dipole-like configuration, where positive charge accumulates on one side and negative charge on the other side.
4. To calculate the strength of the dipole moment (p), we need to determine the magnitude of the charge (q) and the separation distance (d) between them.
5. In the case of a conducting shell, the electric field inside the shell is zero, and the charges redistribute themselves to the outer surface of the shell. This means that the separation distance (d) between the positive and negative charges is equal to the diameter of the shell (2r).
6. The magnitude of the charge (q) on each side of the dipole can be determined by considering the net charge on the shell, which is zero. Therefore, the charges on each side of the dipole are equal in magnitude.
Now, we can express the dipole moment (p) as:
p = q * d = q * 2r
To find the value of q, we need to consider the electric field (E) acting on the shell. The electric field due to an idealized dipole at the center of the shell is given by:
E = (kp * cosθ) / r^2
where kp is the electric dipole moment of the idealized dipole and θ is the angle between the direction of the electric field and the axis of the dipole.
Since the electric field (E) acting on the shell is the same as the field due to the idealized dipole, we can equate these two expressions:
E = (kp * cosθ) / r^2 = (kq * 2r * cosθ) / r^2
From this equation, we can deduce that kp = 2krq.
Therefore, the strength of the dipole moment (p) is given by:
p = q * 2r = (kp * r) / (2k)
Substituting kp = 2krq, we get:
p = (2krq * r) / (2k) = rq
Hence, the strength of the dipole moment is given by p = rq, where r is the radius of the conducting spherical shell and q is the magnitude of the charge on each side of the dipole.
Note: The negative sign indicating the direction of the dipole is not considered here since we are only interested in the magnitude of the dipole moment.
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a cylindrical capacitor consists of a solid inner conducting core with radius 0.230 cm , surrounded by an outer hollow conducting tube. the two conductors are separated by air, and the length of the cylinder is 13.0 cm . the capacitance is 36.0 pf . part a calculate the inner radius of the hollow tube. express your answer in centimeters.
The inner radius of the hollow tube is 0.214 cm.
Cylindrical capacitor consists of a solid inner conducting core with radius 0.230 cm , surrounded by an outer hollow conducting tube. The two conductors are separated by air, and the length of the cylinder is 13.0 cm . The capacitance is 36.0 pf.
The inner radius of the hollow tube is calculated using the following formula:
Inner radius (r2) = √[(C x L) / (2πεo)]1/2 where, C is the capacitance, L is the length of the cylinder and εo is the permittivity of free space.
Plugging in the given values:
Inner radius (r2) = √[(36.0 pF x 13.0 cm) / (2π x 8.854 x \(10^{-12}\))]1/2 = 0.214 cm
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which is the correct statement regarding the work and impulse required to move a box on the floor i) from 2v to 3v; and ii) from 3v to 4v? a box is shown on a horizontal surface. which is the correct statement regarding the work and impulse required to move a box on the floor i) from 2v to 3v; and ii) from 3v to 4v? a box is shown on a horizontal surface. case i requires more work, but i and ii require the same amount of impulse; case i requires less impulse, but i and ii require the same amount of work; case i requires less work, but i and ii require the same amount of impulse; case i requires more impulse, but i and ii require the same amount of work; the two cases require the same amount of work and impulse;
The correct statement regarding the work and impulse required to move a box on the floor from 2v to 3v and from 3v to 4v is Case i requires less work, but i and ii require the same amount of impulse.
W = ΔKE
W = Work done
ΔKE = Change in Kinetic energy
ΔKE = 1 / 2 m ( v2 - v1 )²
J = m Δv
J = Impulse
m = Mass
Δv = Change in velocity
For ( i ),
W = 1 / 2 m ( ( 3 v )² - ( 2 v )² )
W = 1 / 2 m ( 9 v² - 4 v² )
W = 2.5 m v²
J = m ( 3 v - 2 v )
J = m v
For ( ii ),
W = 1 / 2 m ( ( 4 v )² - ( 3 v )² )
W = 1 / 2 m ( 16 v² - 9 v² )
W = 3.5 m v²
J = m ( 4 v - 3 v )
J = m v
Therefore,
i ) W1 < W2
ii ) J1 = J2
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A force of 31 N south is used to accelerate an object uniformly from rest to 8 m/s in 22 s. What is the mass of the object?
this question is centered around newtons second law f=ma
First you need to find the acceleration
\( acceleration = \frac{8 - 0}{22} \)
that gives you 0.36 recurring(on both numbers) m/s²
mass= force ÷ acceleration
\( mass = \frac{31}{0.36recurring} \)
mass= 85.25 kg
if you want to check
f=ma
85.25 × 0.36 recurring (remember its on both numbers not just 6) = 31 N
Answer:
Explanation:
Givens
F = 31 N
vi = 0
vf = 8 m/s
t = 22 seconds
m = ?
Formula
F = m ( vf - vi)/t
Solution
31 = m (8 - 0) / 22 Multiply both sides by 22
31 * 22 = 8 * m
8m = 682 Divide by 8
m = 682 / 8
m = 85.25
In SI units, speeds are measured in meters per second (m/s). But, depending on where you live, you’re probably more comfortable of thinking of speeds in terms of either kilometers per hour (km/h) or miles per hour (mi/h). In this problem, you will see that 1 m/s is roughly 4 km/h or 2 mi/h, which is handy to use when developing your physical intuition. More precisely, show that (a) 1.0 m/s = 3.6 km/h and (b) 1.0 m/s = 2.2 mi/h.
The conversions between meters per second (m/s), kilometers per hour (km/h), and miles per hour (mi/h) are as follows: (a) 1.0 m/s is equal to 3.6 km/h, and (b) 1.0 m/s is equal to 2.2 mi/h.
To convert from meters per second (m/s) to kilometers per hour (km/h), we can use the conversion factor 3.6. This is because there are 3.6 thousand meters in one hour, so dividing the speed in m/s by 3.6 gives the speed in km/h. Therefore, 1.0 m/s is equal to 1.0/3.6 = 0.2778 km/h, which can be approximated as 0.28 km/h.
To convert from meters per second (m/s) to miles per hour (mi/h), we can use the conversion factor 2.237. This is derived from the fact that there are 2.237 miles in one hour. Dividing the speed in m/s by 2.237 gives the speed in mi/h. Hence, 1.0 m/s is equal to 1.0/2.237 = 0.447 mi/h, which can be approximated as 0.45 mi/h.
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star a has 3 times the surface temperature and 0.4 times the radius of star b. what is the ratio of the luminosity of star a to the luminosity of star b? (indicate your answer to an accuracy of 0.1).
Star a is about 13 times more luminous than star b. The surface temperature and radius of star an are three times those of star b, respectively.
The fourth power of a star's temperature and its surface area are both related to how bright it is. So we can use the following equation to calculate the ratio of the luminosity of star a to the luminosity of star b:
Luminosity ratio = (Surface area of star a / Surface area of star b) x (Temperature of star a / Temperature of star b)⁴
Let's denote the surface temperature of star b as Tb and its radius as Rb. Then the surface temperature of star a is 3Tb and its radius is 0.4Rb.
The surface area of a star is proportional to the square of its radius, so we can write:
Surface area of star a / Surface area of star b = (0.4Rb / Rb)² = 0.16
The temperature ratio is (3Tb / Tb)⁴ = 81.
Therefore, the luminosity ratio is 0.16 x 81 = 12.96.
Rounding to one decimal place, we get the luminosity ratio of star a to star b as 13.0. Therefore, star a is about 13 times more luminous than star b.
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Consider a star in a circular orbit around a supermassive black hole at the center of a distant galaxy. If the distance from the central black hole to the star is 1,000 AU and the star orbits once every 10 years, what is the mass of the black hole
a star is in a circular orbit around a supermassive black hole at the center of a distant galaxy, and the from the central black hole to the star is 1000 AU and the star orbits once every 10 years.The mass of the black hole can be calculated using the formula: {eq}M = \frac{v^2 r}{G} {/eq}
Where, v = velocityr = radius of the orbitG = Gravitational constant{eq}G = 6.67 \times 10^{-11}\;m^3\;kg^{-1}\;s^{-2} {/eq}We have to convert 1000 AU to meters. 1 AU is equal to 149.6 × 10⁹ meters. So 1000 AU is equal to 149.6 × 10⁹ × 1000 meters. Therefore r = 149.6 × 10⁹ × 1000 meters = 1.496 × 10¹² distant , the velocity of the star, {eq}v = \frac{2 \pi r}{T} {/eq}Where, T is the period of the orbit.T = 10 years = 10 × 365 × 24 × 3600 = 315360000 seconds
So, {eq}v = \frac{2 \pi \times 1.496 \times 10^{12}}{315360000} {/eq} = 2.98 × 10⁴ m/sSubstituting the values of v, r, and G in the equation above, we get:{eq}M = \frac{(2.98 \times 10^4)^2 \times 1.496 \times 10^{12}}{6.67 \times 10^{-11}} {/eq}= 1.44 × 10⁴ solar massesTherefore, the mass of the black hole is 1.44 × 10⁴ solar masses (main answer).Explanation:In summary, to calculate the mass of a black hole, the formula M = v²r/G must be used.
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How long does it take the principal to run to our classroom, if the distance is 125 meters, and he accelerates,
from rest, at a rate of 4 m/s^2?
answer
The kinematics to find the time to go from the office to the living room is: 2.81 s
Given Parameters
The distance x = 125 n The acceleration a = 4 m / s²To find
The timeKinematics allows us to find the relationships between the position, velocity and acceleration of bodies, let's use the relationship
x = v₀ t + ½ a t²
Where x is the position, v₀ the initial velocity, at acceleration and t the time
In this case, as he leaves the office, the initial velocity is zero.
x = ½ a t²
t = \(\sqrt{\frac{2x}{a} }\)
Let's calculate
t = \(\sqrt{\frac{2 \ 125}{4} }\)
t = 2.81 s
In conclusion, using the kinematics, we find that the time to go from the office to the classroom is: 2.81 s
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Light energy from the Sun reaches an ocean beach, where people are
walking. Which transfer of thermal energy involved in this scenario is an
example of radiation?
O A. From the sand to the ocean waves that strike the beach
O B. From the Sun to the sand
O C. From the sand on the beach to the bottoms of a person's feet
O D. From warm air over the beach to cooler air over the ocean
Answer: B
Thermal energy can be transferred by three methods: conduction, convention, and radiation.
Radiation transfer occurs when there is no movement of matter for the exchange of energy.
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From the sun to the sand
See sun's light energy is a thermal energy also as sun 's ray produces heatSo when that comes contact with sand energy is transferredIf a tennis ball has a velocity of 18 m/s and a momentum of 1.06 kg. m/s, what is the mass of the tennis ball in grams?
Round the answer to two significant figures.
Blank grams
Answer:
59g
Explanation:
The tennis ball with a velocity of 18 m/s and momentum of 1.06 kg m/s then the mass of the tennis ball in grams will be 59 grams (approx) two significant figures.
What is Momentum?Regardless of the frame of reference, momentum is a conserved quantity in any inertial frame, which means that if an enclosed system is not subject to outside influences, its total linear momentum remains constant.
Additionally, momentum is preserved in general relativity, electrodynamics, quantum mechanics, quantum field theory, and special relativity (using a modified formula). It is a manifestation of translational symmetry, one of the basic symmetries of space and time.
According to the question, the given values are :
Velocity, v = 18 m/s
Momentum, p = 1.06 kg m/s
p = m × v
1.06 kg m/s = m × 18 m/s
m = 1.06 / 18
m = 0.0589 kg or
m = 58.9 grams or 59 grams approx in two significant figures.
So, the mass will be 59 grams.
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The variable plotted on the horizontal or x-axis is called the
Answer:
Independent Variable
Explanation:
The variables that are plotted on X-axis, the horizontal line of the graph are termed as independent variables. The variables plotted on Y-axis which is vertical side of the graph are dependent variables.
helpp!!!! Why is it important to provide analysis and results when you write a lab report?
a.so your readers can understand relevant context for the experiment
b.to prove that the original hypothesis was correct
c.to explain what the data from the experiment mean
d.to help other scientists better replicate your experiment
Answer: C
Explanation:
How can we define force?
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.
Answer:
There are 2 definitions chose the suitable one for ur question
Explanation:
1. strength or energy as an attribute of physical action or movement.
2. coercion or compulsion, especially with the use or threat of violence.
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what current flows between a voltage of 120v across a resistance of 30Ω?
Answer:
4 amp
Explanation:
From ohm's law,
V=IR
so,
I=V/R
I=120/30
I=4amp ans..
what units could be used for speed
Answer:
mph (miles per hour) and kph (kilometers per hour)
A group of friends wants to go to the amusement park. They have no more
than $325 to spend on parking and admission. Parking is $11, and tickets cost
$39.25 per person, including tax. Use the drop-down menu below to write an
inequality representing p, the number of people who can go to the
amusement park.
Answer:
4x + 3
Explanation:
The number of people who can go to the amusement park is 8.
What is meant by mathematical inequality ?The mathematical expressions with inequalities are those with unequal sides on both sides. Unlike equations, we compare two values when we work with inequality.
Here,
The total amount they have, z = $325
Amount of parking charge, x = $11
Amount for ticket cost, y = $39.25
Let the number of people who can go to the amusement park be p.
So, the expression for the inequality can be written as,
x + yp = z
Applying the values of x, y and z,
11 + 39.25p ≤ 325
39.25p ≤ 325 - 11
39.25p ≤ 314
Therefore, the number of people who can go to the amusement park,
p ≤ 314/39.25
p ≤ 8
Hence,
The number of people who can go to the amusement park is 8.
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What is the speed of a transverse wave on a string of length 2.0 m and mass 60.0 g under a tension of 500.0 n?
Speed of the wave will be = 129 m/s
given
mass = 60 g = 0.06 kg
length = 2 m
wave speed = v = \(\sqrt{\frac{T}{mu} }\)
T = Tension of the rope = 500 N
mu = linear mass density
mu = mass / length
= 0.06 / 2 = 0.03 kg/m
v = \(\sqrt{\frac{500}{0.03} }\) = 129 m/s
speed of the wave will be = 129 m/s
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which planet has its axis of rotation tilted so much that it appears to rotate on its side?
The planet that has its axis of rotation tilted so much that it appears to rotate on its side is Uranus.
Uranus has an axial tilt of approximately 98 degrees, causing its rotation axis to be nearly parallel to its orbital plane. This extreme tilt gives Uranus its unique characteristic of appearing to roll on its side as it orbits the Sun. As a result, during certain parts of Uranus' orbit, one of its poles is directly facing the Sun, leading to long periods of daylight and darkness.
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The work function for potassium is 2. 26 ev. Show answer no attempt 50% part (a) what is the cutoff frequency when this metal is used as photoelectrode? give your answer in terahertz
When a photoelectron is emitted from a metal surface, the work function is the minimum energy required to extract the photoelectron from the metal. If a photon with energy greater than the work function strikes the metal surface.
The equation to calculate the cutoff frequency is given as:\($f_0 = \frac{W}{h}$\) where W is the work function of the metal and h is the Planck’s constant.
Here, the work function for potassium is 2.26 eV. The value of Planck’s constant is h = 6.626 × 10-34 J s. To convert the work function from electron volts (eV) to joules (J), we can use the conversion factor 1 eV = 1.6 × 10-19 J.
Therefore, the work function of potassium in joules is given as:
\($W = 2.26 \text{ eV} × 1.6 × 10^{-19} \text{ J/eV} = 3.616 × 10^{-19} \text{ J}$\)
Substituting the values of W and h in the above equation, we get:
\($f_0 = \frac{W}{h} = \frac{3.616 × 10^{-19} \text{ J}}{6.626 × 10^{-34} \text{ J s}} = 5.45 × 10^{14} \text{ Hz}$\)
Since the question asks for the cutoff frequency in terahertz, we can convert the above answer from hertz to terahertz by dividing it by 1012.
Therefore, the cutoff frequency when potassium is used as photoelectrode is:
\($f_0 = 5.45 × 10^{14} \text{ Hz} = 545 \text{ THz}$\)
Hence, the cutoff frequency is 545 THz when potassium is used as photoelectrode.
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Explain what the purpose of projectile motion is, and the different equations used. Explain what each equation does.
Answer:
MY friend has already described the purpose of projectile motion so I will quickly go through the uses of each equation ...
Explanation:
TIME OF FLIGHT = it is given as 2Usin tita/g...it is the total time taken to and fro...it is 2x of the time taken ....
TIME taken ..t= Usin tita / g.....is the time taken to reach the maximum height which is 1/2 the TOTALTIME OF FLIGHT GIVEN ABOVE ..
MAXIMUM HEIGHT: the maximum height is the height attained by the projectile when projected ...it is calculate using the formula = U^2 sin^2 tita / 2g
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An object launched into projectile motion will have an initial launch angle anywhere from 0 to 90 degrees. The range of an object, given the initial launch angle and initial velocity is found with: R=v2isin2θig R = v i 2 sin 2 θ i g .
how much does a yard of concrete weigh?
Concrete weighs roughly 4050 pounds per yard on average. Concrete's volume in cubic yards is 27 cubic feet. A cubic foot weighs 150 pounds, or 4050 pounds, divided by 27 cubic feet.
Concrete therefore weights 150 pounds per cubic foot for every cubic yard. The following weights can be obtained by dividing the weight of the concrete's component (cement, stone, and sand):
27 divided by 517 pounds of cement yields 19 lbs per cubic foot.
58 lbs per cubic foot (1560 pounds of sand divided by 27)
59 lbs. per cubic foot or 1600 pounds of stone
For the dry aggregates, that comes to 136 pounds per cubic foot. Considering that I previously stated that a cubic yard of concrete weights 150 lbs per cubic foot, the 14 pounds per cubic
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Two rods are made of the same kind of steel and have the same diameter. A force of magnitude F is applied to each end of each rod. Compared to the rod of length L, the rod of length 2L has
Compared to the rod of length L, the rod of length 2L has The same stress and same strain.
Since we know that Tensile Stress is determined by the relation :
Tensile Stress = \(\frac{F}{A}\)
Where F is the force applied and A is the circular area, which will definitely remain same for both of the rods as they have same diameter.
aslo the Tensile Strain, which is dependent on the young's modulus and stress which would remain same for both of the rods as the material used is same and the stress is alo the same.
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Which force allows you to speed up, slow down, and make turns?
Answer: Friction force
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Explanation:
a 1000 n crate is lifted to a height of 3.0 m . how much work is done to lift the crate?
The work done by the crate to raise the barrel was found t be about 3000J.
How to calculate work done?
Work is a measure of the energy it takes to move an object; most often force times distance.
It is said that "things that don't move have no merit". Work done can be calculated by multiplying the force by the distance traveled as follows:
Work done = Force × distance
According to this question, a box of 1000N is raised to a height of 3.0m. The work done on the barrel is calculated as follows
W = 1000x3 = 3000J
so the work done for lifting the crate was found to be 3000J
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Petroleum is a non -renewable resource. Therefore, its use needs
to be planned so that present and future use can be adequately met.
Explain how the optimal level of use of petroleum can be
achieved.
Petroleum is a non-renewable resource, which means that it cannot be replenished. Because of this, its usage needs to be planned properly to make sure that there is sufficient availability for present and future needs
The optimal level of use of petroleum can be achieved by several ways which are listed below:
1. Reduce wastage: The optimal level of petroleum use can be achieved by reducing wastage. We should aim to use petroleum products efficiently to minimize wastage and ensure that the resource is not used up too quickly.
2. Develop alternative energy sources: Another way to achieve the optimal level of petroleum use is to develop alternative energy sources. Renewable energy sources like solar, wind, and hydro can be developed to supplement petroleum.
3. Increase efficiency: The third way to achieve the optimal level of petroleum use is to increase efficiency. We can achieve this by improving the efficiency of vehicles and machinery that consume petroleum products.
4. Conservation: Conservation can also help achieve the optimal level of petroleum use. We can conserve petroleum by using it judiciously and avoiding unnecessary use. We can also reduce our reliance on petroleum products by using alternatives like public transport or bicycles.
5. Develop sustainable transportation: Developing sustainable transportation can also help achieve the optimal level of petroleum use. We can develop transportation systems that are more efficient, rely on alternative energy sources, and reduce the amount of petroleum consumed.
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