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A student suspends two identical conductive spheres (m = 0.30g) from two equally long nylon threads each 25 cm long. He charges the spheres with equal charge. The suspended spheres move apart from each other a distance of 9.2 cm between their centers. What is the charge on each sphere?
I put a material on top of it, and it only took one rotation--or crank--to knock the material off from the machine and onto the ground.
What is the diameter of a copper sphere that has the same mass as a 2.00 cm x 2.00cm x 2.00 cm cube of aluminum?
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60.0 percent of the energy usage, what altitude change can a rider achieve when driving in hilly terrain, if the rider and scoote..
A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is, What is Q
You drape a string over a pulley and hang a mass of 35kg from one end. You tie the other end to a point a distance L from the pulley so that the string is horizontal between this point and the pulley.
A sport utility vehicle (SUV) and a sports car travel around the same horizontal curve. The SUV has a static stability factor of 0.80 and can negotiate the curve at a most speed of 18 m/s without rolling over.
An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4.00 cm.
After the skier on the hill had been moving for 5.0 s, friction of the snow suddenly increasedmaking the net force on the skier zero. what is new coefficient of friction? how fast would the skier now be going after skiing for 5.0s.
assuming the weight is evenly distributed.On a hot day in Las Vegas, an oil trucker loaded 37000 L of fuel. He encountered cold weather on the way to Utah, where the temperature was 23K lower than Las Vegas.
What is ratio of the applied force
A 65-kg person wants to get to the top of a 2 m high ledge by swinging up to the top by running and grabbing a suspended rope suspended 5m above the ground by a tree.
a typical maximum acceleration for a car is about 8 m/s^2, A sports car traveling at 20m/s accelerates at this rate for 1.25 seconds
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