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after falling from rest from a height of 28 m a 054-kg ball rebounds upward reaching a height of 18 m if the contact
an airplane has a mass of 346 times 104 kg and takes off under the influence of a constant net force of 322 times 104 n
a freezer with a coefficient of performance of 353 is used to convert 161kg of water to ice in one hour the water
a piece of nichrome wire has a radius of 62 x 10-4 m it is used in a laboratory to make a heater that dissipates
some strands of christmas tree lights are wired in series what happens to the other lights if one of the bulbs is
if the accelerating plates are 100cm apart and have a potential difference of 255times104v what is the magnitude of
a satellite orbits at a distance from the earths center of about 620 earth radii and takes 217 hours to go around
saturn has an equatorial radius of 600 107 m and a mass of 567 1026 kga compute the acceleration of gravity at the
in a tractor-pulling contest a 2500 kg tractor pulls a 5000 kg sledge with an acceleration of 061 ms2 the tractor rolls
a 135 kg satellite experiences a gravitational force by the earth of 830 n what is the radius of the satellites orbit
four resistors 10 ohms 16 ohms 22 ohms and 38 ohms are in parallela find the equivalent resistanceb find the current
a football kicker can give the ball an initial speed of 27 ms he is 53 m from the goalpost which has a crossbar 309 m
a particle moving at 91 ms in the positive x direction is given an acceleration of 34 ms2 in the positive y direction
an astronaut on the planet zircon tosses a rock horizontally with a speed of 745 ms the rock falls through a vertical
in denver children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target
a diver runs horizontally off the end of a 3 m high diving board at 6 msa how long does it take for the diver to hit
a ball is thrown off a 22 m high cliff at 9 ms 50o above the horizontala how long does it take to hit the
a 0700-kg ball is on the end of a rope that is 090 m in length the ball and rope are attached to a pole and the entire
a two-slit pattern is viewed on a screen 128 m from the slits if the two third-order maxima are 396 cm apart what is
during a portion of the carnot cycle a dilute gas of diatomic nitrogen is compressed slowly at constant temperature t
a jet plane lands with a speed of 88 ms and can accelerate at a maximum rate of -440 ms2 as it comes to resta from the
a flywheel of mass 187 kg has an effective radius of 063 m assume the mass is concentrated along a circumference
a puck of mass m 190 kg slides in a circle of radius r 230 cm on a frictionless table while attached to a hanging
a firecracker is tossed straight up into the air it explodes into three pieces of equal mass just as it reaches the
if a particle of mass 49 kg is moving east at 10 ms and a particle of mass 19 kg is moving west at 10 ms what is the