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a 750-nc point charge is placed 180 meter from a 420-nc point chargea determine the magnitude of the electric force
the net external force on a golf cart is 4014 newton north if the cart has a total mass of 2755 kilogram evaluate what
the pilot of an aircraft wishes to fly due west in a 500 kilometer per hour wind blowing toward the south the speed of
a 75 kilogram person stands on a 60 meter long and 47 kilogram ladder the ladder is tilted 60 degree above the
a skateboarder with an initial speed of 25 ms rolls virtually friction free down a straight incline of length 19 meter
a fight breaks out at club event in hollywood as a result a chair hits a 40 meter long metal baron the stage a
if the electron drops back to the ground state will a photon be emitted if it is true then find the energy or
in a deep dive a whale is appreciably compressed by the pressure of the surrounding water explain what happens to the
three indistinguishable balloons are given charges of -19 muc -25 muc and 20 muc correspondingly you are given two of
after a day of testing race cars you decide to take your own 1478 kilogram car onto the test track while moving down
a estimate the change in gravitational potential energy of a 70 kilogram skier-earth system when the skier goes down
an anemometer for measuring wind speed consists of four metal cups each of mass m 140 gram mounted on the ends of four
a 0160 kilogram baseball traveling 300 meter per second strikes the catchers mitt which in bringing the ball to rest
an artificial satellite circling the earth completes each orbit in 141 min the radius of the earth is 638 x 106 meter
using a wheel and axle machine a force of 100 newton applied to the rim of a wheel can lift a load of 80 kilogram the
a bike has wheels with a diameter of 0680 meter it accelerates uniformly and the rate of rotation of its wheels
susans 10 kilogram baby brother paul sits on a mat susan pulls the mat across the floor using a rope that is angled 30
a 170 kilogram rock is released from rest at the surface of a pond 100 meter deep as the rock falls a constant upward
a block of mass m1 3 kilogram is sliding across a frictionless table at a speed of v1 3 ms you send a second mass m2
a skateboarder starts from the side of a circular ramp of radius r 4 meter and travels downward he would like to have
several kids are on a sled pulled by a four-wheeler across a level snow-covered field the sled is moving at a fix speed
dinah is playing cards with her friends and it is her turn to deal a card has a mass of 23 gram and it slides 035 meter
a long horizontal hose of diameter 56 centimeter is connected to a faucet at the other end there is a nozzle of
two masses m1 333 kilogram and m2 543 kilogram are on a frictionless tabletop and mass m3 879 kilogram is hanging
a ball of mass 01 kilogram is dropped from a height 11 meter above the surface of a triangular block of mass m1