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An airtight box has a removable lid of area 1.11E-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 8.58E+4 Pa. The inside of the box is completely evacuated. What is the magnitude of the force required to pull the lid off the box?
As a 1.00 mol sample of a monatomic ideal gas expands adiabatically, the work done on it is -2500 J. Calculate the final pressure and temperature
Scientists want to place a 4200.0 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 1.6 times the radius of Mars above the surface of the planet. obtain the force of attraction between Mars and the satelli..
An orbiting satellite stays over a certain spot on the equator of (rotating) Earth. What is the altitude (in km) of the orbit (called a geosynchronous orbit)?
When the displacement in SHM is 0.4 the amplitude A, what fraction of the total energy is kinetic energy, What fraction of the total energy is potential energy
A rock is thrown vertically upward with a speed of 17.0 m/s from the roof of a building that is 70.0 m above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground
A heart defibrillator passes 11.0 A through a patient's torso for 5.00 ms in an attempt to restore normal beating, What was the path's resistance?
A girl of mass 55.0 kg jumps off the bow of a 76.0-kg canoe that is initially at rest. what is the speed of the canoe after she jumps
How much energy is required to accelerate a spaceship with a rest mass of 128 metric tons to a speed of 0.403 c?
A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. Estimate the peak acceleration of the gymnast's head
The speed of an alpha particle is determined to be 1.55×106 m/s. what is the magnitude of that potential
Two wheels have the same mass and radius of 4.3 kg and 0.50 m, respectively. One has the shape of a hoop, Find the net external torque that acts on each wheel
"Two football players are moving toward each other in a straight line. Number 56 has a mass of 116 kg and a velocity of 3 m/s, Determine the velocity (magnitude and direction) of players, after the collision
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