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a solid horizontal cylinder of mass 80 kg and radius 130 m rotates with an angular speed of 750 rads about a fixed
what three experimental observations in the photoelectric effect could not be explained classically and why how did
a thin uniform rod is hinged at its midpoint to begin with one-half of the rod is bent upward and is perpendicular to
an aluminum tray used for making ice cubes is filled with water and placed in a freezer at 200 c the emissivity of the
if it takes light 8 ns to travel 1655 m in an optical cable what is the index of refraction of the
a large storage tank is filled to a height 88 cm the tank is punctured with a small hole at a height 21 cm from the
a 500 kg elevator starts from rest it moves upward for 200 s with constant acceleration until it reaches its cruising
a catapult with a radial arm 402 m long accelerates a ball of mass 205 kg through a quarter circle the ball leaves the
a drum rotates around its central axis at an angular velocity of 195 rads if the drum then slows at a constant rate of
a 5-g bullet is fired into a 14-kg block that is resting on a frictionless surface and is attached to a spring with
calculate the ratio of earths rotational kinetic energy due to its rotation around its axis and the translational
a baseball player loosening up his arm before a game tosses a 0149-kg baseball using only the rotation of his forearm
the uncertainty in a protons position is 019nm what is the kinetic energy of a proton whose momentum is equal to this
a rod of length l and mass m is balanced in a vertical position at rest the rod tips over and rotates to the ground
yet another bizarre baton is created by taking four identical balls each with mass 0346 kg and fixing them as before
an object of mass m is on a frictionless table rotating with a given tangential speed vo with a radius of string ri the
a cylinder rolls down a ramp of height h 11 m with 36deg starting from rest at the top how long does it take to
a woman of mass m 509 kg sits on the left end of a seesaw-a plank of length l 399 m pivoted in the middle as shown in
the hard disk in a laptop computer or some mp3 players contains one or more platters spinning disks each having an
an 180g arrow is fired into a 300kg pumpkin suspended on a string the arrow imbeds itself in the pumpkin and makes it
a 500kg car traveling due east at 540kmh collides head on with a 3000kg van moving at 180kmh if the two vehicles stick
a 600kg swimmer stands at the edge of a 200kg boat that is motionless on the water of a lake if the swimmer dives from
a 575g air-track glider attached to a spring with spring constant 140 nm is sitting at rest on a frictionless air track
better approximation there also exists an item in nature that is extraordinarily spherical where the approximation of a
a 0060kg ball is propelled by a 110kg racquet from rest to a speed of 400ms if the two objects are in contact for 250ms