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A bullet is fired through a board 14.9 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 381 m/s and emerges with a speed of 219 m/s, what is its acceleration as it passes through the board?
You have a cylindrical cup of water that springs a leak 5 cm below the surface of the water. What is the velocity of the water coming out of the hole
Calculate the magnitude and direction of the transverse horizontal force acting on the train
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*M^2. find the rotational kinetic energy K of the rotating wheel
A motor is designed to operate on 117 V and draws a current of 15.0 A when it first starts up. determine the resistance of the armature coil
A girl is strapped to a board that is moving so that gamma along the length of the board is 2.0. What is the length of the girl's board in your reference frame when she arrives
a 3 kg cart moves on an air track at 1.2 m/s. It collides with and sticks to another cart of mass 5 kg, What is the velocity of the combined cart after collision
The ball sinks to the point where none of it extends out of the water and remains submerged such that the child does not sink. The child has a mass of 36 kg. What is the diameter of the ball? Suppose for this problem that the ball has negligible m..
Compute the kinetic energy, in joules, of an automobile of mass 1700kg traveling at a speed of 55.0km/h, By what factor does the kinetic energy change if the speed is doubled
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer. Identify the element, using its chemical symbol
the position of an object moving in a straight line is given by x= 5+3.0t - 40t^2 -20t^3, where x is in meters and t in seconds. a)What is the position of the object at t=1,2,3 and 4 s
A 6.00 kg mass is located at (2.00m, 2.00m, 2.00m) and a 5.00 kg mass is located at (-1.00m, 3.00m, -2.00 m). find the moment of inertia of this system
Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Determine the period of the orbit
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