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a river 240 m wide and 50 m deep drains a 30000 km2 land area in which the average precipitation is 48 cmyear
a 0045kg ball is propelled by a 215kg racquet from rest to a speed of 500ms if the two objects are in contact for 220ms
a large grinding wheel in the shape of a solid cylinder of radius 0330 m is free to rotate on a frictionless vertical
a 160-n sphere 020 m in radius rolls without slipping 60 m down a ramp that is inclined at 25deg with the horizontal
the index of refraction for red light in water is 1331 and that for blue light is 1340 if a ray of white light enters
a 10-kg cylinder rolls without slipping on a rough surface at an instant when its center of gravity has a speed of 10
a ball of mass 80 kg is suspended by two wires from a horizontal arm which is attached to a vertical shaft as shown in
4626g sample of hydrocarbon upon combustion yielded 6484g of co2 what is the by weight of the carbon in the
on the way from a planet to a moon astronauts reach a point where that moons gravitational pull transitions from being
a wire of length 072 m and cross-sectional area 27 cm2 is stretched elastically by an amount 1 cm by hookes law the
today chemistry plays an important role in our everyday lives when you come to think about it it is in everything that
a glass flask whose volume is 100033 at 0 is completely filled with mercury at this temperature when flask and mercury
the angular displacement of a rotating wheel is given by theta18t23t-212t3 find the angular acceleration and angular
a 9 kg rock is suspended by a massless string from one end of a 3 m measuring stick what is the weight of the measuring
a 2200 kg car moving east at 100 ms collides with a 3000 kg car moving north the cars stick together and move as a unit
we are depositing nicr fim on a si wafer for a mems device we measure a stress of the film of 600 mpa using x-ray
for an octahedral complex of each of the following metal ion determine the number of unpaired electrons for both high
a fan running on high is switched to low and slows down to 835rads in 175s due to a deceleration of 420 radss calculate
what is the thermal stress in a sio2 film that is deposited at 950 c on a si substrate after it returns to room
a plane traveling at 432kmh flies in a circle with a radius of 3820m calculate how long it takes to go once around the
the molar mass of unknown gas was measured by effusion experiment it was found that it took 57s for the gas to effuse
the velocity of light c is 3x108 ms an am radio station is at 1500 khz on the radio dial what is the wavelength of the
how long does it take light to travel 300000 km in a vacuum how far would a body near the surface of the earth fall in
an electron is accelerated through 165 x 103 v from rest and then enters a uniform 130-t magnetic fielda what is the