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the drawing shows the potential at five points on a set of axes each of the four outer points is 55 x 10-5 m from the
at a grocery store a spring scale spring constant 450 nm hangs near the produce section the spring hangs vertically
the voltage and power ratings of a particular light bulb which are its normal operating values are 110 v and 60 w
a certain fluid has a density of 1090 kgm3 and is observed to rise to a height of 23 cm in a 10-mm-diameter tube the
the inside diameters of the larger portions of the horizontal pipe depicted in the figure below are 242 cm water flows
a model rocket launches with initial net upward accelration 15g g is 98 this accelaration is maintained for 3 seconds
a toy train engines 25kg is moving 025ms when it collides with a car 16kg moving 015 ms in the same direction and they
a monatomic ideal gas expands adiabatically from an initial volume of 72 l and an initial temperature of 350 k until
a coil having l014 h r12 is connected across a v110v f25hz line compute a power factor and
two identical parallel-plate capacitors each with capacitance c are charged to potential difference v and then
a radio station is allowed to broadcast at an average power not to exceed 26 kw if an electric field amplitude of
on a cold winter day the outside temperature is -20degc and the inside temperature is maintained at 20degc there is a
estimate the radiation pressure due to a 100-w bulb at a distance of 70 cm from the center of the bulb assume that
a high-energy pulsed laser emits a 15-ns-long pulse of average power 26times1011 w the beam is 23times103 m in radius
in an em wave traveling west the b field oscillates vertically and has a frequency of 870 khz and an rms strength of
two resistanceless rails rest 37 cm apart on a 40 degree ramp they are joined at the bottom by a 055 ohm resistor at
a 50-gram ice cube at 0 degrees celsius is heated until 40 grams has become water at 100 degrees celsius and 50 grams
an electron drops from the l shell to the k shell and gives off a k x-ray with a wavelength of 02510 nm what is the
a 100 g lead bullet at 23 degrees c slames into a stone wall assuming no loss of energy to the environment how fast
one mole of an ideal monatomic gas is taken through the cycle shown in the figure assume that p 3 p0 v 3 v0 p0
an x-ray photon with a wavelength of 0120 nm scatters off a free electron at rest the scattered photon moves off at an
a car accelerates from rest to a speed of 190ms in 600 seconds if the car weighs 16000n what average power must the
a car approaches you at a constant speed sounding its horn and you hear a frequency of 76 hz after the car goes by you
a 0750kg block is attached to a spring with spring constant 165nm while the block is sitting at rest a student hits it
12455 cs has a half-life of 308sa if we have 53microg initially how many cs nuclei are presentb how many are present