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you walk on level ground 05 km east then 2400 m south and then climbs to the top of a building that is 1850 m tall what
a 840 kg girl lowers herself to the ground from a height of 86 m by holding onto a rope running over a pulley to a 300
pilots and astronauts are tested for the stresses of flying high-speed aircraft in a spinning human centrifuge a device
the coefficient of friction kinetic between a rubber tire and a wet concrete road is 05 a find the minimum time in
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