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A person with a weight of 222 lb stands on two feet with their weight equally distributed between the two shoes and each shoe has an area of 42 square inches. What is the pressure on each shoe independently?
A 113 gram apple falls from a branch that is 2.5 meters above the ground. Just before the impact, what is the speed of the apple
A missile is shot straight up into the air. At the peak of its trajectory, it breaks up into three pieces of equal mass, What is the angle of the remaining piece
A space probe journeys at a constant velocity from Earth to Tau Ceti (a distance of 10.9 y) in a time of 1.5 y as measured by the probe's internal clock
An air-core solenoid has a length of 27.1 cm, a cross-sectional area of 0.0454m2, By how much does the magnetic flux through the solenoid change
A crate of potatoes of mass 8.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.72 and μk = 0.43. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up t..
A cement block accidentally falls from rest from the ledge of a 74.8-m-high building. When the block is 18.4 m above the ground, a man, 2.10 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have ..
A student (m= 75 kg) falls freely from rest and strikes the ground. throughout the collision with ground, he comes to rest in a time of 0.040 s. the average force exerted on him by the ground is +18 000 N.
During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. Illustrate what is the average induced emf in the coil?
An 11g bullet is fired into an 11kg wood block that is at rest on the wood table. The block, with the bullet embedded, slides 5.11 across the table. The coefficient of kinetic friction for wood sliding on wood is 0.25.
A ramp is a simple machine which can be used to load heavy items onto a truck. What is the mechanical advantage of a ramp that makes the angle of 26o regarding the horizontal.
Change values of the initial position, initial velocity, and the acceleration of the car so that its center follows the same path as the dot. What is the equation that describes motion of the dot.
A constant force, = (1.27, -2.33, 3.93) N, acts on an object of mass 10.3 kg, What is the total work done by this force
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