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A child in a boat throws a 6.40kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.0 kg, and that of the boat is 45.0 kg. Ignore water resistance. Characterize this interaction as elastic/inelastic/completely inelastic and determine the total work performed by the child.
A nuclear power plant has an electrical power output of 2000 MW and operates with an efficiency of 34%. what is the rise in temperature of the flowing water
The minimum distance required to stop a car moving at 42.0 mi/h is 39.0 ft. What is the minimum stopping distance for the same car moving at 67.0 mi/h, assuming the similar rate of acceleration.
A 58.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.38 102 m/s from the top of a cliff 156 m above level ground, What is the initial total mechanical energy of the projectile
Three filaments with ratings P1 = 60 W, P2 = 80 W, and P3 = 180 W are connected parallel to a 120 V outlet. How much total current is drawn
questiona 1.00 ball is thrown directly upward with an initial speed of 16.0. a graph of the balls gravitational
Moving a charge from point A, where the potential is 310 , to point B, where the potential is 120 , takes 4.5×10?4 of work. What is the value of the charge
A turntable rotates with a constant angular acceleration 2.20rad/s^2. What was the angular velocity of the wheel at the beginning of the time interval 4.40s
A flashlight bulb with a potential difference of 6.0 V across it has a resistance of 8.5 W. How much current is in the bulb filament
The supersonic aircraft Concorde has a length of 61.6m when sitting on the ground on a typical day when the temperature is 12.0C . The Concorde is primarily made of aluminum
For research purposes a sonic buoy is tethered to the ocean floor and emits an infrasonic pulse of sound. Determine the wavelength of the sound
The engine of a model rocket accelerates the rocket vertically upward for 2.0 s as follows: At t = 0, the rocket's speed is zero; at t = 1.0 s, determine the instantaneous acceleration of the rocket at t = 1.5 s
The charge is now taken out from the spherical shell and placed outside it at a distance 25cm from the center of the sphere. Calculate the electric field at the center of the spherical shell
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