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Q. In a television set, an electron beam with a current of 5.0 x 10-6 ampere is directed at the screen. Approximately how many electrons are transferred to the screen in 60 seconds?
Q. The center of a 1.40km diameter spherical pocket of oil is 1.50km beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of g for a uniform Earth? Assume the density of oil is 8.0 x 10^2 kg/m^3.
The jet accelerates uniformly, and during that time, the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.370 m. find the magnitude of the plane's acceleration.
Macaroni and cheese packages specify how long to cook the pasta in boiling water. Calculate the concept relating temperature and pressure in cooking of food.
An object of mass 2.00 kg is held at a position A, a vertical height of 20.0 m above the ground. Point B is 8.00 m directly below A. Neglect air resistance and use g = 10.0 m/s.
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
What is an initial speed given to the rock
Define proton-proton chain efficiently
If a freight train can accelerate at 0.050 m/sec2, how far must it travel to increase its speed fro 2.0 to 8.0 m/sec?
A planet of mass 6.00 1025 kg is in a circular orbit of radius 2.00 1011 m around a star. The star exerts a force on the planet of constant magnitude 5.03 1023 N. The speed of the planet is 4.09 104 m/s. All through this half "year", how much work is..
A 4.5 box slides down a 4.7 high frictionless hill, starting from rest, across a 1.6- -wide horizontal surface, afterwards hits a horizontal spring with spring constant 550 . The other end of the spring is anchored against a wall. The ground under..
If the football has the mass of .420 kg and the time of contact with the ball is .014 s, what is the force exerted by the ball on a kicker's foot.
How to find the length
David is driving a steady 21 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.20 m/s^2 at the instant as David passes.
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