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the heating element of a water heater in an apartment building has a maximum power output of 32 kw four residents of
two bars of equal mass are at 32degc one is made from glass and the other from another material the specific heat
a piece of glass has a temperature of 77degc liquid that has a temperature of 33degc is poured over the glass totally
the elastic limit of the platinum forming a piece of wire is equal to 25 x 108 pa find what is the maximum speed at
a small permanent magnet is located in a uniform magnetic field of magnitude 035 t if the maximum torque experienced by
a 350 kilogram box is moving to the right with speed 8 meter per seconds on a horizontal frictionless surface at t 0 a
if the wavelength of light is 400 nanometers in a substance where the speed of light is 235 x 108 meter per second
a 28 kg block is on an incline with a coefficient of static friction of 077 if the angle that the ramp makes by the
a parallel-plate capacitor made of two circular plates of radius r 10 centimeter is being charged find the magnitude
the initial speed of a 28-kg box traveling up a plane inclined 37 degree to the horizontal is 396 ms the coefficient of
two straight rods 60 centimeter long and 2 millimeter apart in a current balance carry currents of 18 amp each in
a 24 kg girl slides down a playground slide that is 29 m high when she reaches the bottom of the slide her speed is 13
the component of the external magnetic field along the central axis of a 12 turn circular coil of radius 16 centimeter
a block with mass m 200 kg is placed against a spring on a frictionless incline with angle 21deg the block is not
use bernoullis equation to calculate the upward force on an airplane wing if the average flow speed of air is 195 meter
the earths radius is 637times106m it rotates once every 24 hours what is the earths angular speed viewed from a point
a 250 g 23-cm-diameter plastic disk is spun on an axle during its center by an electric motor what torque should the
the position of a mass m 300 kg is given in by xt 70cos 150t compute the magnitude of the maximum force acting on the
presume electrons move through a copper wire at speed v call the linear charge densities in the earth reference frame
a garden hose of inner radius 06 centimeter carries water at 12 meter per second the nozzle at the end has radius 025
a rocket with a mass of 53000 kg including fuel is burning fuel at the rate of 150 kgs and the speed of the exhaust
at 28 millimeters from a sound source the intensity level is 70 dba determine what is the level at distance of 75
a piece of metal is released under water the volume of the metal is 381 cm3 and its specific gravity is 51 evaluate
at the surface of a freshwater lake the pressure is 106 kpaa determine the pressure increase in going 349 meter below
a hypodermic syringe is attached to a needle that has an internal radius of 0300 millimeter and a length of 302