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a block of wood of mass 101 kg is initially at rest a bullet of mass 0047 kg traveling at 1050 ms strikes the block and
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
an object of mass 40 kg is allowed to fall from rest under the force of gravity for 34 s what is the change in its
a car with mass of 10000 kg accelerates from 0 ms to 400 ms in 110 s ignore air resistance the engine has a 23
in the figure below m1 95 kg and m2 45 kg the coefficient of static friction between m1 and the horizontal surface is
a microphone is located on the line connecting two speakers that are 0766 m apart and oscillating 180deg out of phase
the tension in the horizontal towrope pulling a water-skier is 270 n while the skier moves due west a distance of 52 m
during normal operation a computers hard disk spins at 7200 rpm if it takes the hard disk 45 s to reach this angular
your cars wheels are 69 cm in diameter and the wheels are spinning at an angular velocity of 105 rads how fast is your
a car approaches the top of a hill that is shaped like a vertical circle with a radius of 492 m what is the fastest
a spacecraft is in orbit around a planet the radius of the orbit is 30 times the radius of the planet which is r 71467
a proton and an electron are both accelerated through a potential difference of 7200va what is the kinetic energy in
a college professor keeps 025 l 000025 m3 of hot coffee in a thick styrofoam container the container is 06 cm thick and
at launch the space shuttle weighs 45 million pounds 204 million kilograms as the vehicle starts from rest on the
suppose that 00025 m3 of gas in a cylinder is compressed by a piston down to 0001 m3 while 675 j of heat flows out of
an ideal gas at stp originally occupying a volume of 0115 m3 expands isothermally until its pressure falls to 085 atma
a metal conducting sphere of radius 15cm has a net charge of 30nc and is located with its center at the origin if v0 at
two boxes are sitting on a horizontal frictionless surface box a has a mass of 30kg and box b has a mass lof 20 kg the
on the moon the acceleration due to the effect of gravity is only about 16 of that on earth an astronaut whose weight
you are trying out for the position of place-kicker on a professional football team with the ball teed 500 m from the
the pilot of an aircraft wishes to fly due west in a 477 kmh wind blowing toward the south the speed of the aircraft in
a galago a very small primate can extend its legs by about 16 cm during a jump during which it accelerates at 140 ms2 a
passengers on the tower of doom a free-fall ride at six flags america sit in cars that are raised to the top of a tower
a nurse measures the temperature of a patient to be 415 degrees c what is the temperature on the fahrenheit scale do