If frequency increases, then wavelength _________.

Answer:

Someone who writes software or programs for computers is called a programmer.

Explanation:

The kinetic energy of the wheel, with an angular speed of 3000rev/min if the radius gyration of the wheel is 12cm,  is approximately 24,568.15 Joules.

To determine the kinetic energy of the wheel, we'll need to use the following formula:

Kinetic Energy (KE) = 0.5 * I * ω²

Where I is the moment of inertia, and ω is the angular speed in radians per second.

First, we need to convert the angular speed from rev/min to radians per second:

ω = 3000 rev/min * (2π radians/rev) * (1 min/60 sec) = 314.16 radians/sec

Next, we can calculate the moment of inertia using the mass (35 kg) and radius of gyration (0.12 m):

I = m * k² = 35 kg * (0.12 m)² = 0.504 kg*m²

Finally, we can find the kinetic energy:

KE = 0.5 * 0.504 kg*m² * (314.16 radians/sec)² = 24,568.15 J

The kinetic energy of the wheel is approximately 24,568.15 Joules.

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Answer:

food

Explanation:

"-m" represents a negative image distance which implies an inverted or upside-down image formation. Therefore the correct answer is (D) -m.

In optics, the notation "do" refers to object distance and "di" refers to image distance.

The sign convention for object and image distances is as follows:

- If the object distance (do) is positive, it indicates that the object is located on the same side as the incident light.

- If the object distance (do) is negative, it indicates that the object is located on the opposite side of the incident light.

- If the image distance (di) is positive, it indicates that the image is formed on the opposite side of the light.

- If the image distance (di) is negative, it indicates that the image is formed on the same side as the light.

In the given options, "-m" represents a negative image distance, indicating that the image is formed on the same side as the light.

This implies an inverted or upside-down image formation.

Therefore, option (D) -m represents an upside-down image.

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Answer:

a) v = 0.4799 m / s,  b)  K₀ = 1600.92 J,    K_f = 5.46 J

Explanation:

a) How the two players collide this is a momentum conservation exercise. Let's define a system formed by the two players, so that the forces during the collision are internal and also the system is isolated, so the moment is conserved.

Initial instant. Before the crash

        p₀ = m v₁ + M v₂

where m = 95 kg and his velocity is v₁ = -3.75 m / s, the other player's data is M = 111 kg with velocity v₂ = 4.10 m / s, we have selected the direction of this player as positive

Final moment. After the crash

       p_f = (m + M) v

as the system is isolated, the moment is preserved

       p₀ = p_f

       m v₁ + M v₂ = (m + M) v

       v =\(\frac{m v_1 + M v_2}{m+M}\)

let's calculate

        v = \(\frac{ -95 \ 3.75 \ + 111 \ 4.10}{95+111}\)

        v = 0.4799 m / s

b) let's find the initial kinetic energy of the system

         K₀ = ½ m v1 ^ 2 + ½ M v2 ^ 2

         K₀ = ½ 95 3.75 ^ 2 + ½ 111 4.10 ^ 2

         K₀ = 1600.92 J

the final kinetic energy

         K_f = ½ (m + M) v ^ 2

         k_f = ½ (95 + 111) 0.4799 ^ 2

         K_f = 5.46 J

Gauge pressure required in city water mains for a stream is 147,150 Pa

In fluid mechanics, Bernoulli's principle states that an increase in fluid velocity occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. This principle is named after the Swiss mathematician Daniel his Bernoulli published it in his 1738 book Fluid Mechanics.

According to the Bernoulli's Equation:

P₁ + ρgy₁ + (\(\frac{1}{2}\))ρv₁² = P₂ + ρgy₂ + (\(\frac{1}{2}\))ρv₂²

where, y₁ =  initial height

y₂ = final height

Initial height is 0 meters and final height is 15 meters.

The problem states that the mains have a much larger diameter than the hose, so v₁ = 0

Once our water reaches a 15 m. altitude, it stops going anymore higher. Therefore, v₂ also be 0.

P₁  = P₂ + ρgy₂

Since, we are solving for gauge pressure, we can assume that the pressure at the top of our column of water is zero.

P₁  = ρgy₂

P₁  = 1000 × 9.8 × 15

P₁  = 147,150 Pa

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Answer:

Velocity 8 m/s

Explanation:

Given:

m₁ = m₂  = 0.1 kg

v₁ = 8 m/s

v₂ = - 7 m/s

v₁' = - 7 m/s

____________

v₂' - ?

Law of conservation of momentum:

m₁·v₁ + m₂·v₂ = m₁·v₁' + m₂·v₂'

m₁·8 - m₂·7 = - m₁·7 + m₂·v₂'

m₁ = m₂

8 - 7 = - 7 + v₂'

v₂' = 8 m/s = v₁

This phenomenon is called "velocity exchange".

Answer:

468.42572 Wavelength In Metres

Explanation:

Answer:

\(\huge\boxed{\sf Wavelength= 470\ m}\)

Explanation:

Given Data:

Speed of light = c = 3 × 10⁸ m/s (Constant)

Frequency = f = 640 kHz = 6.4 × 10² × 10³ Hz = 6.4 × 10⁵ Hz

Required:

Wavelength = λ = ?

Formula:

λ = c / f

Solution:

λ = 3 × 10⁸ / 6.4 × 10⁵

λ = 0.47 × 10³

λ = 4.7 × 10² m

λ = 470 m

\(\rule[225]{225}{2}\)

Hope this helped!

The amount of force required to stop an object, based on the forces of inertia and momentum, varies according to speed, weight, and the distance between impact and stop.

Inertia is the tendency of an object to remain in motion unless acted upon by an outside force, while momentum is the product of an object's mass and velocity. The amount of force required to stop an object is proportional to its mass, velocity, and the distance it needs to travel before it comes to a stop. The greater the mass, velocity, and distance, the more force is required to stop the object.

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The objects with a speed higher v = 7668 m/s than that number are likely to go into orbit. (Y & Z)

The orbital speed of an astronomical body or object (e.g. planet, moon, artificial satellite, spacecraft, or star) is the speed at which it orbits around either the barycenter or if one object is much more massive than the other bodies in the system, its speed relative to the centre of mass of the most massive body.

The term can be used to refer to either the mean orbital speed, i.e. the average speed over an entire orbit, or its instantaneous speed at a particular point in its orbit.

Maximum (instantaneous) orbital speed occurs at periapsis (perigee, perihelion, etc.), while minimum speed for objects in closed orbits occurs at apoapsis (apogee, aphelion, etc.).

In ideal two-body systems, objects in open orbits continue to slow down forever as their distance to the barycenter increases.

g = v^2 / r

so v = square root ( r x g )

v = 7668 m/s will be the minimum speed needed to go into orbit.

Based on that, objects with a speed higher than that number are likely to go into orbit. (Y & Z)

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Answer: An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions. ... They collide, bouncing off each other with no loss in speed.

Answer:

It C 100% bc i alrweady learn this

Answer:

Friction always acts opposite to the motion.

Answer:

1.12 × 10⁴ m/s

Explanation:

The escape velocity of the object v = √(2GM/R) where G = gravitational constant = 6.67 × 10⁻¹¹ Nm²/kg², M = mass of the Earth = 6 × 10²⁴ kg and R = radius of the Earth = 6.4 × 10⁶ m

Since v = √(2GM/R)

Substituting the values of the variables into the equation, we have

v = √(2GM/R)

v = √(2 × 6.67 × 10⁻¹¹ Nm²/kg² × 6 × 10²⁴ kg/6.4 × 10⁶ m)

v = √(13.34 × 10⁻¹¹ Nm²/kg² × 6 × 10²⁴ kg/6.4 × 10⁶ m)

v = √(80.04 × 10⁻¹¹ × 10²⁴Nm²/kg/6.4 × 10⁶ m)

v = √(80.04 × 10¹³Nm²/kg ÷ 6.4 × 10⁶ m)

v = √(80.04 ÷ 6.4 × 10¹³ ÷ 10⁶Nm/kg)

v = √(12.50625 × 10⁷ Nm/kg)

v = √(125.0625 × 10⁶ Nm/kg)

v = 11.18 × 10³ m/s

v = 1.118 × 10 × 10³ m/s

v = 1.118 × 10⁴ m/s

v ≅ 1.12 × 10⁴ m/s

Answer:

B. 2 m/s

Explanation:

With all collisions, momentum is conserved. This is known as the Conservation of Momentum.

To find the momentum of an object, multiply its mass by its velocity.

\(m_yv_y+m_ov_o=(m_y+m_o)v_f\), solving for vf

Plugging in numbers, we get:

\(100\cdot 8 + 200(-1)=(100+200)v_f\)

\(300v_f=600,\\v_f=\boxed{2\text{ m/s}}\)

The average speed of the dragon fly for the interval from t = 0 to t = 8 s is 1 m / s

v = d / t

v = Average velocity

d = Total distance flown

t = Total time taken

d = 2 m ( Positive x-direction ) + 4 m ( negative x-direction ) + 2 m ( Positive x-direction )

d = 8 m

t = 8 s

v = 8 / 8

v = 1 m / s

Average speed is the average value of speed for a given distance at a given time. It can also be found using the initial and final velocities if the acceleration is constant.

The given question is incomplete. The complete question is:

A confused dragonfly flies forward and backward in a straight line. Its motion is shown on the following graph of horizontal position xx vs. time tt. What is the average speed of the dragon fly for the interval from t = 0 to t = 8 s? The graph is attached as image.

Therefore, the average speed of the dragon fly is 1 m / s

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Answer:

Explanation:

How much force does a 1000kg car need to accelerate at 3m s2 to the south?

Answer- the force needed to accelerate the 1000kg car by 3m/s2 is 3000N.

Answer:

Current for 12 ohms = 2.5

Explanation:

Ohm's Law:

Voltage = IR

Current = V/R

Resistance = V/I

Therefore, current = 30V/12 Ohms

30/12 = 2.5

So current for 12 ohms = 2.5

I hope this helps :>

Answer:

To calculate the extension of a rubber band that has a spring constant of 180 N m^-1 and for which the work done in extending it is 0.16 j, you can use the following formula:

extension = work done / spring constant

Plugging in the values given in the question, you can calculate the extension as follows:

extension = 0.16 j / 180 N m^-1

= 0.000889 m

Therefore, the extension of the rubber band is 0.000889 m.

It's important to note that this calculation assumes that the rubber band behaves as an ideal spring, which means that it obeys Hooke's Law (F = kx, where F is the force applied to the spring, k is the spring constant, and x is the extension of the spring). In reality, real-world springs may not behave perfectly according to Hooke's Law, so the calculated extension may not be completely accurate.

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let the bowling ball initially is moving along the x-axis,

The whole process can be represented as,

Before the collision the net kinetic energy of the balls is,

where the values of the variables are given as,

As the value of cos(90) is zero.

Substituting the known values,

The value of the net kinetic energy with the velocity along the y-axis before the collision is,

The velocity of the second ball is at rest in the initial state, thus its value is taken as zero.

After the collision of the balls, the net kinetic energy is,

Negative sign here indicating the direction of the final balls motion will be opposite to the each other.

The values of the variables are given as,

Substituting the known values,

The value final kinetic enegry of the balls with velocity along the y-axis is,

Here 360 degree is used because the pin ball direction is downward of the positive x-axis.

Then by the law of conservation of energy along the y-axis,

Thus, the y component of the final velocity of the bowling ball of mass m1 is 5 meter per second.

According to a signal velocity, the cable length is 9.45 inches.

We need to know about the velocity to solve this problem. The velocity can be determined as the total distance divided by the total time. It can be written as

v = d / t

where v is velocity, d is distance and t is time.

From the question above, we know that

v = 80%c = 0.8c = 2.4 x 10⁸ m/s

t = 1 ns = 1 x 10¯⁹ s

The length of cable can be represented by the distance

v = d / t

d = v . t

d = 2.4 x 10⁸ . 1 x 10¯⁹

d = 0.24 m

Convert to inches (1m = 39.37 inches)

d = 0.24 m

d = 0.24 x 39.37 inches

d = 9.45 inches

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Answer:

The car is going 0 km/h more than the bike

Explanation:

         The relationship between electric current and potential difference is stated by Ohm's law. Most conductors' current is directly inversely proportional to the voltage applied to them. German physicist Georg Simon Ohm was the first to empirically confirm Ohm's law.

The expression for Ohm's law is V I. As a result, V = RI, where R is the resistance constant. R is influenced by the conductor's material, size, and other factors. Ohm () is its SI unit.

      Ohms to volts conversion using the formula watts volts = watts ohms. or.

V = √W × Ω Example.

Given that,

  Voltage (v) = 250 V          

  Resistance (R) = 25 Ω,

   Determine current (I) =?

 We know that from ohm's law

 V = I R    

  I = V/R

  I = 250 / 25

  I = 10 A

Current in the circuit is 10 Amps.

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The earth pulls the moon with as much force as the moon pulls the earth.

Answer:

His second law. "The acceleration of an object depends on the mass of the object and the amount of force applied."

Explanation:

The harder you hit the faster and more the ketchup comes out

Explanation:

Hope this helps,

Juno entered a polar orbit of Jupiter on July 5th 2016 UTC, to begin a scientific investigation of the planet. After completing its mission, Juno will be intentionally deorbited into Jupiters atmosphere. Junos mission is to measure Jupiters composition, gravitational field, magnetic field, and polar magnetosphere.

Answer:

1

3

4

5

or

a

c

d

e

Explanation:

Answer:

please give me brainlist and follow

Explanation:

The heating of the Earth's surface and atmosphere by the sun drives convection within the atmosphere and ocean. This convection produces winds and ocean currents.

Answer:

its C

Explanation:

its (C)

The value of RN and T can be found graphically by plotting the relationship between the two variables.The value of RN and T can also be found algebraically.

Variables are used in programming to store information or data. They are typically used to store values that may change over the course of the program's execution. Variables can be assigned different data types such as strings, integers, booleans, or other complex data types such as objects or arrays. Variables are typically declared with a type and a name, and are assigned a value. Variables can also be assigned values from user input, such as from a form or a text field. Variables are important because they allow the programmer to store and manipulate data. This can help the programmer create more efficient and complex programs.

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