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A rock is kicked horizontally at a speed of 10 m/s from the egde of a cliff. The rock strikes the ground 55 m from the foot of the cliff. Neglect air resistance. How long is the rock in the air?
A block of mass 2.0kg rests on top of another block of mass 5.0kg. What is the maximum amplitude of oscillations possible such that the block stay together
A 0.30-m-radiusautomobile tire accelerates from rest at a constant 2.0rad/s2 overa 5.0-s interval. What is the tangential component of acceleration
Suppose an astronomical telescope is being designed to have an angular magnification of 31.6. If the focal length of the objective lens being used is 98.0 cm, find the required focal length of the eyepiece and the distance between the two lenses f..
A solid sphere of radius = 8 cm and mass = 5 kg is sitting on a level table and is attached with a string over a pulley, Calculate the final angular and linear speeds of the sphere
A Martian leaves Mars in a spaceship that is heading to Venus. On the way, the spaceship passes earth with a speed v = 0.86c relative to it. What is the time of the trip (in seconds) as measured by the Martian
a hockey puck moving at 32 slams through a wall of snow 30 thick. it emerges moving at 18 .how much time does it spend
A walkway suspended across a hotellobby is supported at numerous points along its edges by a verticalcable above each point and a vertical column underneath. through what distance does the point move down
a simple pendulum has a period t2.93218 s in a location where g 9.80000 ms2. a what is its length m?b what would be
a piano has been pushed to the top of the ramp at the back of a moving van. the workers think it is safe but as they
A stone of weight W has specific gravity 2.51. When the stone is suspended from a scale and submerged in water, what is the scale reading in terms of its weight in air
A HeNe (Helium-Neon) laser has a beam power of 5.00 mW at a wavelength of 656 nm. Assume the beam is focused by a lens to a circular spot whose effective diameter is 15 wavelengths of the light.
Light with ? = 760 nm is diffracted by a single slit, and the first intensity minimum (the first dark fringe) occurs at ? =3°. What is the width of the slit
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