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a bouncy ball is dropped from rest after hitting the ground what is the highest height it could bounce what are the
the conduction electrons in a metal can be considered for some purposes as an ideal gasa what is the average thermal
a 1m long cantilevered beam of rectangular cross section carries a uniform load of w 15 knm the design specification
a string is fixed at both ends and is vibrating at 119 hz which is its third harmonic frequency the linear density of
a rocket has a total mass of 112 105 kg and a burnout mass of 109 104 kg including engines shell and payload the
a closed surface encloses a net charge of -350 what is the net electric flux through the surface use 885times1012 for
an ultrasound unit is being used to measure a patients heartbeat by combining the emitted 20 mhz signal with the sound
a 0400-kg ball approaches a very massive wall at 200 ms perpediculat to wall and rebounds with 700 of its inital
a 120 kg ball and a 400 kg ball are connected by a 740 cm long massless rigid rod the structure rotates about its
a block of mass 0489 kg is placed on the end of a spring which has a stiffness of 337 nm it is pulled down 460 cm and
an ideal gas at 300k has a volume of 15 liters at 15atm calculate the final volume of the system the work done by the
a block with a mass of m is resting on a 20 degree slope the block has coefficients of friction 081 and 055 with the
consider a wheatstone bridge suppose a resistance rx is istalled as the unknown and the bridge is balanced giving a
a string that is under 470n of tension has linear density 580gm a sinusodial wave with amplitude 270cm and wavelength
a block of mass m 210 kg slides down a 300deg incline which is 360 m high at the bottom it strikes a block of mass m
two tugboats pull a disabled supertanker each tug exerts a constant force of 220times106 n one at an angle 120 west of
a car moving with an initial speed v collides with a second stationary car that is one-third as massive after the
a 70kg skateboarder comes over the top of a hill at 60ms and reaches 12ms at the bottom find the total work done on the
you slide a box of books at constant speed up a 30 degree ramp applying a force of 170n directed up the slope the
a 1 kg mass initially at rest compresses a spring spring constant 2500 nm by 02 m and is released the mass slides along
a hockey puck is swung at the end of a very slight 30 cm long string in a horizontal circle if the speed of the puck is
a 765 kg car is being pushed along a flat parking lot at a constant speed of 198 ms the coefficient of friction between
in the first 31 seconds of a bobsled run the 45 kg sled is pushed until it reaches a speed of 114 ms the flat surface
a 500 m long rigid beam with a mass of 1100 kg is supported at each end a 550 kg student stands on the beam 140 m from
a 650 kg skier initially at rest begins to slide down at a 100 degree slope if the hill is 30m long and the coefficient