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A 12kg hammer strikes a nail at a velocity of 8.2m/s and comes to rest in a time interval of 8.0. What is the impulse given to the nail? What is the average force acting on the nail?
Given an isothermal expansion of gas from 1.0 to 2.0 cubic meters in a piston-cylinder arrangement where pressure varies according to P= 1.2 atm -.062 atm/ m^3 V, How much thermal energy was transferred
James is scheduled for a job interview with Ms. Farrar. He knows that she is in charge of selecting, placing, and evaluating employees for her firm, but he cannot remember her educational background. Which is most likely Ms. Farrar's educational back..
X-rays are used for analyzing molecular structure. What is the frequency (in Hz) of X-rays that have a wavelength of ? = 13.3 nm
One side of the roof of a building slopes up at 37.0°. A roofer kicks a round, Determine the maximum height the rock reaches above the point where it was kicked
suppose that E = 50.0V , R = 210? and L = 0.140H . With switch S2 open, switch S1 is left closed until a constant current is established. Which point is at a higher potential
Consider a stack of paper 3.0 meters high. each sheet of paper is the stack has a thickness of 0.01 centimeter
A person pushes a 19.6-kg shopping cart at a constant velocity for a distance of 27.3 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
All the pulleys are frictionless, and the strings are massless. Illustrate what are the tensions in all the strings and what are the acceleration of the masses?
Calculate the force a mother must exert to hold her 12.0 kg child in an elevator accelerates upward at 0.850 m/s2
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, illustrate what was the speed of the bullet at impact with the block?
What is the most probable kinetic energy for a molecule of a gas at temperature T = 300.K
A solid sphere of mass 6.0 kg is mounted on a vertical axis and can rotate freely without friction, What is the speed of the block after it has fallen 80 cm
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