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Holding a glass of water full to a depth of 7.6 cm you step into an elevator. The elevator moves upward by constant acceleration, increasing its speed from zero to 1.9 m/s in 2.7 s. Find the change in pressure exerted on the bottom of the glass through the time the elevator accelerates.
Ball A is dropped from the top of a building of height H at the same instant ball B is thrown vertically upward from the ground. First consider the situation where the balls are moving in opposite directions when the collide.
A 1000 kg artillery shell is fired from a battleship. What net external force is exerted on the artillery shell before it leaves the barrel of the gun
Mounted on a low-mass rod of length 0.52 m are four balls. Two balls each of mass 0.89 kg, are mounted at opposite ends of the rod. What is the moment of inertia of the device about its center
A woman with a mass of 70 kg climbs a set of stairs that are h = 3 m high. How much gravitational potential energy does she gain
A small block of mass 1.14 kg slides without friction on a horizontal table. find the torque placed on the mass by the string
A swimming pool has dimensions 36.0 m 8.0 m and a flat bottom. When the pool is filled to a depth of 1.90 m with fresh water, what is the force caused by the water on the bottom
In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. How much work did Arfeuille do on the object
what will a spring scale read for the weight of a 54- woman in an elevator that moves upward with constant speed 5.0 ?
A gamma ray photon produces an electron-positron pair each with a kinetic energy of 210 KeV. What was the energy and wavelength of the photon
A horizontal 802-N merry-go-round is a solid disk of radius 1.44 m, started from rest by a constant horizontal force of 50.3 N applied tangentially to the edge of the disk
A mule uses a rope to pull a box that weighs 3.0 x 10^ 2 N across a level surface with constant velocity. What is the normal force of the floor on the box
Determine the tension in each cable if boat has a mass of 490 kg and the angle of each cable is 50 degrees from the horizontal and the boat is being momentarily held at rest. Evaluate this to the tension when the boat is raised and held at rest so th..
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