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a car initially traveling at 247 msunder goes a constant negative acceleration of magnitude150 msnbspnbspnbsp 2 after
an electric motor rotating a workshop grinding wheel at a rate of114 revmin is switched off suppose the wheel has a
what uniform magnetic field applied perpendicular to a beam of electrons moving at 730 x 106 ms is required to make the
concave shaving mirror a concave shaving mirror has a radius of curvature of 350 cm it is positioned so that the
a space vehicle is traveling at 5900 kmh relative to the earth when the exhausted rocket motor is disengaged and sent
a body of mass 21 kg makes an elastic collision with another body at rest and continues to move in the original
a 2500 kg truck travelling north at43 kmh turns east and accelerates to 56 kmh1 what is the change in the trucks
a 1700 kg automobile is at rest at a traffic signal at the instant the light turns green the automobile starts to move
a 6080 kg space probe moving nose-first toward jupiter at 105 ms relative to the sun fires its rocket engine ejecting
a pendulum 2 meters long is positioned so that the pendulum bob is at the focus of a concave mirror when the bob is at
a 130 kg block rests on the icy surface of a frozen pond which you can suppose to be frictionless if the location of
you want to project an image onto a walla typical slide for a projector is 24mm x 36 mm and the screen at the front of
a pot containing 102 liter of water initially at 18degc is placed on a1030 w electric heating elementa how much heat
compute the root-mean-square speed of ammonia nh3 molecules at 560deg c an atom of nitrogen has a mass of
a metal strip 899 cm long 0779 cm wide and 0714 mm thick moves by constant velocity through a uniform magnetic field b
a steel rod is 3000 cm in diameter at 25deg c a brass ring has an interior diameter of 2992 cm at 25deg c at what
a person slides across the frictionless ice arena where they were playing a hockey game and smashes into another
you toss a ball straight up when it leaves your hand it is 15 meter above the ground it rises to a maximum height of 10
the coefficient of kinetic friction between the floor and the suitcase is 021 if the suitcase has a mass of 62 kilogram
you are designing a game for kids you want to see if the game will require safety goggles in the game a 150 gram ball
two equal conducting spheres are separated by a fixed center to center distance of 430 centimeter and have different
a sledge loaded with bricks has a total mass of 174 kilogram and is pulled at fix speed by a rope inclined at 202
a rod of length 38 meter is hinged at one end and a force of magnitude is applied at the othera if a magnitude of
a block of mass 0540 kilogram is pushed against a horizontal spring of negligible mass until the spring is compressed a