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a 15400 g mass is ona horizontal surface with muk 031 and isin contact with a massless spring with a force constant of
a projectile is shot from the edge of a cliff h125m aboveground level with an initial speed of v0155ms at an angle of
young david who slew goliath experimented with slings beforetackling the giant he found that he could revolve a sling
a contact lens is made of plastic with an index of refractionof 148 the lens has an outer radiusof curvature of 197 cm
if the height of the water slide is h 32m and the persons initial speed at point a is 054ms what is the new horizontal
a small cylinder with mass m radius r01 mand moment of inertia 12 mr2 rolls up along acurved surface with an initial
a bullet of massm1 is fired horizontally with a speedv into the bob of a ballistic pendulum of massm2 find the maximum
a 19-kg block slides down a frictionless ramp the top of the rampis 15m above the ground the bottom of the ramp is 025m
a wheel of r20 m is mounted on a frictionless horizontal axisas shown in the figure a light cord wrapped around the
each railroad car has a mass of 62000 kg nine coupled railroad car moving with a speed of 28 ms collide and couples
a long straight conducting rod or wire carries a linearcharge density lambda of 20mucmthis rod is totally enclosed
a 876 kg drag race car accelerates from rest to 109 kmh in 0862 s what average force is exerted on the caranswer in
an 1865 kg airplane starts at rest on an airport runway at sea level a what is the change in mechanical energy of the
a child bounces a 56 g superball on the side walk the velocity change of the superball is from 24 ms downward to 18 ms
a 280 mu f capacitor is charged to 460 v and a375 mu f capacitor is charged to 525 vthese capacitors are then
object a is metallic and electrically neutral it is chargedby induction so that it acquires a charge of -3010-6c object
a barefoot field-goal kicker imparts a speed of 23 ms to a football initially at rest if the football has a mass of 024
figure below shows two very long straight wires in crosssection that each carry a current of 417 a directly out of
when the play button is pressed a cd accelerates uniformlyfrom rest to 495 revmin in 26 revolutions if the cd has a
a slide projector has a converging lens whose focal length is10500 mm a how far in meters from the lensmust the screen
the transmitting antenna for a radio station is 755 km fromyour house the frequency of the electromagnetic wave
a cylindrical conducting shell of radius rho4mm and negligible thickness forms the inner conductor of coaxial line the
spherical capacitor the plates of a sphericalcapacitor have radii 310 and 450 mma calculate the capacitanceb what must
a beam contains 84 x 108 doubly charged positiveions per cubic centimeter all of which are moving north with aspeed of
a fuse in an electric circuit is a wire that is designed to melt and thereby open the circuit if the current exceeds