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Q. An electric field of 7.5 multiplied by 105 V/m is needed between two parallel plates, each of area 39 cm2 and separated by 2.45 mm of air. What charge should be on each plate?
Q. A train is travelling up a 3.2 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast. How long does it take for the last car to come to rest?
If the car is going 55m/s, how many meters will it travel before it stops? How many meters will it takes to stop car going twice as fast.
A small remote-control car with a mass of 1.60 kg moves at a constant speed of v = 14.0 m/s in a vertical circle inside the hollow metal cylinder that has the radius of 5.00 m.
What is magnetic flux through the desk surface
Find out the sum of these four vector forces: 12N to the right at 35.0° above the horizontal, 31.0 N to the left at 51.5° above the horizontal, 7.45N to the left at 35.0° below the horizontal, and 24N to the right at 48.0° below the horizontal.
A 100g wire is held under a tension of 250N with one end at x = 0 and other x = 10m. At time t = 0, pulse 1 is sent along the wire from the end at x = 10 m. At time t = 30 ms, pulse 2 is sent along the wire from the x = 0. At what position x do the..
how far did the last car travel before momentarily coming to a rest. A 3 kg block accelerates at a rate twice that of a 6 kg block. Is the net force acting on the 3kg block twice as large as that acting on 6kg block.
The coefficient of expansion of iron and zinc
A 80 kg football player stand at the end of a uniform 8m, 50kg diving board supported as shown. Determine the forces exerted by the two supports.
A 50 kg block and a 100kg block are connected by string. the pulley is frictionless and of negligible mass. the coefficient of kinetic friction between the 50kg block and incline is 0.250. find the change in the kinetic energy of the 50kg block as..
find the potential energy at each location below. How far from the point of the drop will the rock hit the ground.
How various lines per centimeter does a grating have if the third-order occurs at a 23.0 degree angle for 630-nm light.
What should be coefficient of static friction
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