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suppose you have two ice cube traysone is filled with hot water and the other with cold water which tray will produce
a simple pendulum is 400 m longa what is the period of simple harmonicmotion for this pendulum if it is hanging in an
a ball with a mass of 25 grams is dropped from aledge 908 meters above the ground what is its kinetic energy theinstant
a worker pushed a 27kg block 92 m along a level floor atconstant speed with a force directed 32o below thehorizontal if
a cue ball mass0165 kg is at rest on africtionless pool table the ball is hit dead center by a poolstick which applies
a student m63 kg falls freely from restand strikes the ground during the collision with the ground hecomes to rest in a
during a solar eclipse the moon earth and sun all lie on thesame line with the moon between earth and the suna what
at 20 c a steel rod of length 40000 cm and a brass rod oflength 30000 cm both of the same diameter are placed end to
suppose the minimum uncertainty in the position of a particleis equal to its de broglie wavelength if the particle has
a rocket is accelerated to speed 45300 ms near earthssurface where earths radius is re 6370 km and it then coasts
notes produced by a violin range in frequency fromapproximately 196hz to 2637hz1 find the maximum wavelength inair
a 229n force is applied to the plunger of a hypodermicneedle if the diameter of the plunger is 127 cm and that ofthe
a 14cm tall object is 40cm from a concave mirror ifthe image is 40cm tall how far is it from the
an archer pulls herbowstring back 0300 m by exerting aforce that increases uniformly from zero to 280 na what is the
light of a wavelength 610nm is incident on a slit of 020mmwide and the diffraction pattern is produced on a screen that
a spring in a toy gun has a spring constant of 915 nm and can be compressed 180 cm beyond the equilibrium position a
if you were to walk briefly in space without aspacesuit while far from the sun as an astronaut does in the movie2001
a spring has a spring constant of 578 nm when used tosuspend an object in air the spring stretches by 00640 m when used
a solid sphere has a temperature of 768 k the sphere is melteddown and recast into a cube that has the same emissivity
the speed of a bobsled is increasing because it has an acceleration of 24 ms2 at a given instant in time the forces
in an l-r-c series circuit theresistance is 400 omega the inductanceis 0380 henrys and the capacitance
a copper rod has a length of 17 m and a cross-sectional area of41 x10-4 m2 one end of the rod is incontact with boiling
at a crime scene the forensic investigator notes that the 82 g lead bullet that was stopped in a door frame apparently
the electrons in the beam of a television tube have a kineticenergy of 204 x 10-15 j initially the electrons
a g215 g sample of a substance is heated at 330 degree celcius and then plugged into 105 aluminum calorimeter cup