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A circular saw blade 0.200 m in diameter starts from rest. In 9.00 s it accelerates with constant angular acceleration to an angular velocity of 180 rad/s. Find the angular acceleration and the angle through which the blade has turned.
rad/s2
rad
a spring has a constant k=8.75 N/m. if the spring is displaced 8.150 m from its equilibrium position, what is the force that the spring exerts
In a 45° - 90° - 45° prism with a ray of light entering and exiting on the long side of the prism after undergoing two total internal reflections. Determine the minimum index of refraction of the prism in order for this to occur
What should be coefficient of static friction
A particle, p, has a mass of 2 kg and is traveling with a speed of vp-i = 3.1 m/s. The particle scatters elastically from another particle N, What is the magnitude of the momentum of the recoiling N
A power supply maintains a potential difference of 86.1 V across a 1070-? resistor. What is the current in the resistor
A 10g lead bullet at 23 degrees celsius slams into a stone wall. Assuming no loss of energy to the environment, how fast must the bullet be traveling
A mass is attached to a spring of spring constant 60.0 N/m along a horizontal, frictionless surface. what is the amplitude of the oscillating mass
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.3 kg and contains 15 kg of water. A 1.0 kg piece of the metal initially at a temperature of 170°C is dropped into the water
A particular freely falling object requires 1.95 s to travel the last 33.5 m before it hits the ground. From what height above the ground did it fall.
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 6 iron. For how much more time was the ball in flight
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. Find the angle of elevation of the hose
Two plane mirrors stand facing each other, 2.79 m apart, and a woman stands between them. What is the position of the third closest image
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