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The question asks to determine the mechanical energy that is lost as a result of the collision, not he kinetic energy. What is the mechanical energy that is lost?
When light of a certain waveleght is incident normally on a certain diffraction grating the line of order 1 ia at a diffraction angle 25 Degrees
A toy car is driven by a battery of 9V. it draws a current of 2mA. what is the resistance of the car
A person on earth notices a rocket approaching from the right at a speed of 0.83c and another rocket approaching from the left at 0.64c. What is the relative speed between the two rockets
A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, Compute the time it takes for the car to come to rest
A light board, 10 m long, is supported by two sawhorses, one at one edge of the board and a second at the midpoint. What is the force exerted by the sawhorse at the end of the board
Three +3.0-?C point charges are at the three corners of a square of side 0.50 m. Find the magnitude of the electric field at the center of the square
A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) How much energy was lost in the collision? (b) Calculate the average force exerted on ..
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 6.75 10-7 m, What is the maximum acceleration of the eardrum
Pluto has a mass of 1.30x10^22 kg and a radius of 1.18x10^6 m. What is the acceleration due to gravity on Pluto
A bowling ball of mass 7.10kg and radius 9.20cm rolls without slipping down a lane at 3.64m/s. Calculate its total kinetic energy
An airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 18° south of east, What is the airplane's speed relative to the earth
A small object begins a free-fall from a height of H = 82.5 m at t0 = 0 s. At what height from the ground will the two objects first meet
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