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1 a room of ceiling height h with a rectangular floor of dimensions w and l is measured to have a reverberation time of
a 20 nf capacitor with an initial charge of 510 mc is discharged through a 130-komega resistor a calculate the current
a cosmic-ray proton in interstellar space has an energy of 100 mev and executes a circular orbit having a radius equal
a 80 nf capacitor with an initial charge of 10mc is discharged through a 5-komega resistora calculate the current in
a wire having a mass per unit length of 10 gcm carries a 300 a current horizontally to the south what are the direction
consider a capacitor of capacitance c that is being discharged through a resistor of resistance r after how many time
if the length of a string increases 8 times but the mass of the string remains constant the new density of the string
what is the wavelength in m of a 8 khz sound wave in a material where the speed of sound is 1540
a wave is sent back and forth along a rope 4 m long with a mass of 35 kg by exerting a force a force of 30 n calculate
calculate the wavelength in m of a 1020 hz sound in air at room temperature and pressure where the velocity of sound is
a wave travels at 92 ms and has a wavelength of 28 m calculate the wave frequency in
an object is 24 cm in front of a diverging lens that has a focal length of -14 cm how far in front of the lens should
physics question nbspthe national academy of science in order to gather information on deforestation wishes to place a
use your knowledge of the correct number of covalent bonds to predict the formula for a simple compound formed between
an antacid tablet weighing 0956g contained calcium carbonate as the active ingredient in addition to an inert binder
a 103-g bullet is fired into a stationary block of wood having mass m 490 kg the bullet imbeds into the block the speed
a person lifts a 100 newton dumbbell by pulling upward with his biceps the biceps are attached to the arm bone 15 cm
a circus act involves a trapeze artist and a baby elephant they are going to balance on a teeter-totter that is 10
three equal charges q are at the vertices of an equilateral triangle of sides a at what point in the plane of the
if the box is actually sliding forward with an acceleration of 075 ms22 find the coefficient of kinetic friction
what is the potential difference between xi10cm and xf30cm in the uniform electric field ex1000 vmin please show work
a potters wheel with rotational inertia 692kgsdotm2 is rotating freely at 193 rpm the potter drops a lump of clay onto
two objects are falling through the air one of them is a racquetball the other one is an identical racquetball but one
a bowling ball of mass m and radius r is released so that at the instant it touches the floor it is moving horizontally
1 jane waits on a railroad platform while two trains approach from the same direction at equal speeds of 1190 ms both