3 years ago

At which point in the diagram above is the kinetic energy the greatest

Physics

1 answer:

Mars2501 [29]3 years ago

3 0

Answer:

its a or more probably e

Explanation:

the ball goes back and forward in kinetic energy.

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A wheel is rotating at 30.0 rpm. The wheel then accelerates uniformly to 50.0 rpm in 10.0 seconds. Determine the – a) rate of an

Mademuasel [1]

Answer:

The angular acceleration is $0.209\ rad/s^2$

Explanation:

Given that,

Angular velocity, $\omega_{i} = 30.0\ rpm$

Angular velocity, $\omega_{f} = 50.0\ rpm$

Time t = 10.0 sec

We need to calculate the angular acceleration

Using formula of angular acceleration

$\alpha=\dfrac{\Delta \omega}{\Delta t}$

$\alpha=\dfrac{\omega_{f}-\omega_{i}}{\Delta t}$

$\alpha=\dfrac{50.0-30.0}{10.0}$

Now, we change the angular velocity in rad/s.

$\omega=20\times\dfrac{2\pi}{60}$

$\omega=2.09\ rad/s$

$\alpha=\dfrac{2.09}{10.0}$

$\alpha=0.209\ rad/s^2$

Hence, The angular acceleration is $0.209\ rad/s^2$

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what is the distance a train can travel if its speed is 20mph over a time of 5.6 hours (show all 3 steps)

erik [133]

Answer:

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Explanation:

its 12 miles every 0.6 in a hour

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2 years ago

What are the magnitude and direction of electric field at the center of square?

Kobotan [32]

Answer:

hello the diagram related to this question is missing attached below is the missing diagram

Answer :

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

Explanation:

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

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A sample of water with a mass of 1 gram freezes at 32°F. At what temperature will a 100-gram sample of water freeze?

valkas [14]

Answer:

3200°F

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just add two zero's to the end

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The four major Earth systems are the atmosphere, lithosphere, hydrosphere, and geosphere. true and false

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