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in a pool game the cue ball which has an initial speed of 5ms makes an elastic collision with the eight ball which
a cord is wrapped several times around a soliddisk-shaped pulley mass of 10 kg a mass of 3 kg is suspendedfrom the free
a driver travels northbound on a highway at a speed of 260 ms a police car traveling southbound at aspeed of 420 ms
transverse waves travel with a speed of 230 ms in a string under a tension of620 n what tension is required for awave
a plot of the displacement on the y axis vs applied force on thte x axis for an ideal elastic spring what would the
the magnetic field in a radio wavetraveling through air has amplitude 20 x 10-11 tand frequency 40 mhza find the
a sealed tank containing seawater to a height of 110 m also contains air above the water at a gauge pressure of 300 atm
it takes a force of 53 kn on the lead car of a 16 car passengertrain with a mass 91 x 105 to pull it a constant 45 ms
a hydraulic jack is made with a small piston 12 cm indiameter that is used to move a large piston 61 cm in diameter ifa
waves from a radio station have a wavelength of 300m they travel by two paths to a home receiver 200km from
one end of a copper rod is in thermal contact with a hotresrvoir at t500k and the other end is in thermal contact with
a farm boy studying physics believes that he can fit a 150m long pole into a 120m long barn if he runs fast enough
a diverging lens is to be used to produce avirtual image one-fifth as tall as theobject where should the object be
in a youngs double-slit experiment the seventh dark fringe islocated 0027 m to the side of thecentral bright finge on a
a 150 kg bucket of water is suspended by a ropewrapped around a windless that is a solid cylinder 0500 m indiameter
rhea one of saturns moons has a radius of 765 km andan acceleration due to gravity of 0278 ms2 at itssurface calculate
when in orbit a communication satellite attracts the earthwith a force of 190 kn and the earth-satellite
a black totally absorbing piece of cardboard of area a 15 cm2 intercepts lightwith an intensity of 2 wm2from a camera
plane-polarized light is incident on a single polarizing diskwith the direction of e0 parallel to thedirection of the
unpolarized light passes through two polaroid sheets the axisof the first is vertical and that of the second is at
the charge of 20mu c produces an electric field twopoints are 10 cm and 5cm from this charge find the amount of
to focus a camera on objects at different distances theconverging lens is moved toward or away from the film so a
a common flashlight bulb is rated 030 a and 29 v if theresistance of the tungsten bulb filament at room temperature 20
a 120 v potential is applied to a space heater that dissipates500 w during its operationa what is the resistance of the
a very thin sheet of plastic n160 covers one slit of adouble-slit apparatus illuminated by 640-nm light the centerpoint