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Q1. A hockey stick is swung with an average angular acceleration of 1.5 rad/s2. What is an angular velocity of the stick when it strikes the ball at the end of 0.8 second swing?
Q2. A string is wound tightly around a freely rotating solid disk of mass M and radius R. The free end of string is then attached to a block of mass M, which itself is attached to a vertical spring of spring constant k. The disk is rotated clockwise by some external agent until the spring is stretched from its equilibrium length by distance R equal to the radius of the disk. The disk is held in this position by the finger pushing directly down at the disk's top until it is released.
A block of mass 3.65kg and density 600 kg/m^3 floats in a bath of oil of density 970kg/m^3. calculate total volume of wood and metal
a 2kg block of wood slides on the surface shown. all surfaces are frictionless, except the trough which is rough; the coefficient of kinetic friction there is 0.2 and the trough is 15m long. where will the block come to rest
Determine the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be assumed for this problem.
Two charges are held 0.5 m apart and exert a force of 32 N on one another. what is the force they exert on one another
A 111 gram apple falls from a branch that is 3.5 meters above the ground, How much time elapses before the apple hits the ground
A reversible engine takes in 555 J per second and exhausts 482 W, How much power does it produce?
A 5cm radius sphere is filled with a uniform volume charge with charge density 2.3\times10-6C/m3, Calculate the electric flux out of the surface of the cube
Mary applies a force of 70 N to push a box with an acceleration of 0.49 m/s2. When she increases the pushing force to 80 N, What is the mass of the box
One side of the roof of a building slopes up at 42.5°. A roofer kicks a round, flat rock that has been thrown onto the roof by a neighborhood child.
What is the minimum coefficient of friction between tires and road that will allow cars to take turn without sliding off the road.
If the bullet leaves the gun at a speed of 177 m/s, and misses by 1.02 m, at illustrate what angle should the gun be aimed so as to hit the target?
A point charge q1 = -8.9 μC is located at the center of the thick conducting shell of inner radius a = 2.2 cm and outer radius b = 4.5 cm, the conducting shell has a net charge of q2 = 1.1 μC.
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