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an object of mass m1 and velocity v1 undergoes an elastic head on collision with another object of mass m2 that is rest
a 50 kg box is suspended by a rope from the ceiling if a horizontal force of 20 lb is applied to the box what angle
kevin joe and nick are studying for their physics exam but they are very confused about momentum conservation a reading
your moving car contains a lot of energy as kinetic energy - energy of motionif your car is not a hybrid when you stop
what maximum output would you expect from a wind turbine with a blade of radius 15 ft in a 25 mph wind please type out
suppose that 40 grams of a radioactive isotope is discovered to have 125 grams remaining after 24 hours what is the
a speeding motorist traveling at 1260 kmhr passes a stationary police officer at the instant the motorist passes the
a scientist wants to model an internal organ with connective tissue as a mass on a spring the mass of the organ is 20
can a step-up transformer be used as a step down transformer in a circuit what are the safety concerns with
a football is thrown with a velocity of 10 ms at an angle of 30 degrees above horizontal how far away should the
a 10 kg iron ball rolling at 2 ms on a horizontal surface strikes a 1 kg wood ball of the same size which was at rest
a 1000 kg car moving north at 20 ms collides with a 1500 kg car moving west at 12 ms if the cars stick after the
38 m3 of helium at 345 x 105 pa are held at 120 c how many moles of helium are there express your result to 3
in a calorimetry experiment it is found that the temperature of 238 grams of aluminum pellets increased from 18 c to 74
the crest of a wave see the figure in your text passes the 50 cm mark on a meter stick and 551 seconds later passes
an ideal gas is compressed isobarically from 872 m3 to 541 m3 at a pressure of 252 x 105 pa due to the addition of 235
a 3 times 3 square has 9 boxes each of which can be either black or white how many distinct arrangements of the black
a horizontal spring mass system has a spring constant k 255nm and mass m0 30kg if the system oscillate with an
please help me solve these problems show all steps thank youa bat flying toward a wall at 60ms emits a sound at a
a 180 kmh hurricane wind blows over a house if the flat roof of dimension 62mtimes124m is lifted off the house assume
a bat flying at 60ms chases a bug flying at 30ms the bat emits a sound frequency of 32khz what is the frequency of the
antifreeze has a density of 107gcm3 while water has a density of 100gcm3 how much water and antifreeze should be mixed
what pressure does a diver experience at a depth of 250m in the ocean the density of sea water is 1025kgm3 and
a stone is thrown vertically upward with velocity 100ms calculate the speed of the stone when it has traveled 70 of the
an 183 kg block is dragged over a rough horizontal surface by a constant force of 196 n acting at an angle of angle 314