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a hydraulic cylinder with a radius of 00281 m has a piston on the left end and a safety valve at the right end the
a show that the density of an ideal gas occupying a volume v isgiven by rho pmrt where m is the molar mass show this
a a very powerful vacuum cleaner has a hose 269 cm in diameter with no nozzle on the hose what is the weight of the
a commuter train blows its horn as it passes a passenger platformat a constant speed of 300 ms the trainhorn sounds at
as soon as a traffic light turns gree a car speeds up from rest to500 mih with constant acceleration 900 mihr s in
the bullet train the shinkansen the japanesebullet train runs at high speed from tokyo to nagoya riding onthe
a test rocket is firedvertically upward from a well a catapult gives it an initial speedof 798 ms at ground level its
a tourist drops a rock from rest from a guard rail overlooking a valley what is the velocity of the rock at 40s what is
a rubber balloon is rubbed against a wool sweater and acquired a charge of -16 muc how many electrons were transferred
a long conducting rodsuspended by insulating strings assume that the rod is initiallyelectrically neutral for
kenny pulls with a force of 850 n justin pushes with a force of 650 n the crate weighs 1250 n and sits on a ramp that
a piece of ice of mass 00240 kg at an initial temperature of-110o c is placed in a well-insulated cup containing0100 kg
two boxes are seen to accelerate at the same rate when a force fis applied to the first box and 4f is applied to the
a charged water droplet of radius 21 mm remains stationary in airif the electric field of the earth is 15100 nc how
the drawing shows four point charges the value of q is 206 microc and the distance d is 098 m find the total potential
a stone thrown vertically upward with a velocity of 143 msfrom edge of a cliff 79m high from its highest point it then
in this problem the question tells us that there are two springs connected to each other and that the spring constant
a laser beam having 652 nm wavelength and 10microns width is fired at a very thin steel plate which has twoslits in it
a 60-uf air capacitor is connected across a 100-v battery afterthe battery fully charges the capacitor the capacitor is
a styrofoam ball of mass 0120 g is placed in an electric field of6000 nc pointing downward what charge must be placed
four point charges have the same magnitude of 219 10-12 c and are fixed to the corners of asquare that is 420 cm on a
a non-conductor sphere of radius a has a negative chargedistribution given by the function p -c r2 where cis a
bats emit sounds of frequencies around 350 khz and useecholocation to find their prey if a bat is moving at the speed
an object weighing 305 n in air is immersed in water after beingtied to a string connected to a balance the scale now
a horizontal pipe 1500 cm in diameterhas a smooth reduction to a pipe 750cm in diameter if the pressure of the water in