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Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.30 106 kg/s. If one third the potential energy of this water were converted to electric energy, how much power would be produced by these falls?
MW
Two charged particles, q1 = ?2.50×10?3 C and q2 = +3.550e-3 C, are separated by a distance of 5.00 cm. find the electric potential energy of this configuration
A 1800 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 6 m before coming into contact with the top of the beam, and it drives the beam 14.0 cm farther into the ground before coming to rest.
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 would the first allowed orbital be for a particle whose mass is 2 x 10 ^ -39 kg and velocity was 30% the speed of light
Two loudspeakers are placed 3-m apart. They emit 498 Hz sounds, in phase. A microphone is placed 3.2m distant from a point midway between the two speakers, where an intensity highest is recorded.
A Hall probe serves to measure magnetic field strength. Such a probe consists of a poor conductor 0.171 mm thick, evaluate the magnetic field strength
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
Earth's radius is 6.37 106 m. Illustrate by what percent does the Moon's gravitational pull on you increase?
A(n) 84 g arrow is fired from a bow whose string exerts an average force of 110N on the arrow over a distance of 80cm. What is the speed of the arrow as it leaves the bow.
A 1.9-pF parallel plate capacitor has a potential difference of 10.0 V across it. The plates are 1.1 mm apart, and the space between them contains air. What is the area of the plates
What is the maximum distance we can shoot a dart, from ground level, provided our toy dart gun gives a maximum initial velocity of 2.78 m/s and air resistance is negligible
A man drops a baseball off of the top of the Empire State Building. If an action force is the pull of the Earth on the ball, then what is the reaction force.
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