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A cyclist approaches the bottom of a gradual hill at a speedof 20m/s. the hill is 5.1m high, and the cyclist estimates that sheis going fast enough to coast up and over it withoutpeddling. Ignoring air resistance and friction, find the speed at which the cyclist crests the hill.
Suppose Q and nQ are charges that are seperated from origin by -L and oL and the origin and that the origin as at a point of electrostatic equilibrium between them
A certain atom of has 77 protons. Assume that the nucleus is a sphere with radius 6.73 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface what is the magnitude of the electric field produced by the proto..
Two balloons (m = 0.028 kg) are separated by a distance of d = 0.9 m. They are released from rest and observed to have an acceleration of a = 1.9 m/s2 toward each other, How many electrons are respnsible for the charge
You wish to design a telescope using an objective lens with f(objecive) = 0.75 m. If you use an eyepiece with a magnification of 20, what is the length of the telescope
Riders on the "Great American Revolution" loop-the-loop roller coaster wear seatbelts as the roller coaster negotiates its 6.5m -radius loop with a speed of 9.8m/s.
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
You are given 35.000 cm of copper wire with diameter 2.0000 mm. It is formed into a circular loop, At what rate is thermal energy generated in the loop
A rubber ball (150g) confined to move in the x direction, bounces elastically back and forth at 9m/s between two walls, Calculate the average pressure on this wall
A proton is on the x axisat x = 1.2 nm. An electron is onthe y axisat y = 0.66 nm. Find the net force the two exert on ahelium nucleus (charge +2e) at the origin. i need theforces in vector i and j form. Try following the solution but myanswer is com..
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 x 10^-6 C, Find q1 and q2
A 55-kg skier starts from rest at the top of a ski jump, point A is at the top of the ramp and is 40.6 m above the end of the ramp, Determine the distance (s) to where she strikes the ground.
What is the direction from the players original point. he estimates that the car is about 400 m away.
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