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A billiard ball collides in an elastic head-on collision with a second identical ball. What is the kinetic energy of the system after the collision compared to that before collision?
A. The same as
B. One fourth
C. Twice
D. Four times
A converging lens with a focal length of 11.4cmforms a virtual image 7.55mm tall, 16.6cm to the right of the lens. Determine the position of the object
A 5.00 partridge is suspended from a pear tree by an ideal spring of negligible mass. When the partridge is pulled down 0.100 below its equilibrium position and released, it vibrates with a period of 4.20
An 19.3kg box is released on a 36.1o incline and accelerates down the incline at 0.276m/s2. What is the magnitude of the friction force impeding its motion
Light of wavelength 624 nm passes through a single slit and then strikes a screen that is 1.2 m from the slit. What is the width of the slit
When the power is turned off on a turntable spinning at 67.0 rpm, you find that it takes 13.0 revolutions for it to stop while slowing down at a uniform rate. What is the angular acceleration (in rad/s^2), of this turntable
A rocket with a mass of 2.9×10^6 kg has a relativistic kinetic energy of 2.5×10^23 J. How fast is the rocket moving
The highest theoretical efficiency of a gasoline engine, based on the Carnot cycle, is 0.300 or 30.0%. what is the temperature in the cylinder immediately after combustion
If the coefficient of friction between the ladder and ground is 0.42, illustrate what is the mass of the heaviest person who can safely ascend to the top of the ladder?
A very powerful vacuum cleaner has a hose 2.69 cm in diameter. With no nozzle on the hose, what is the weight of the heaviest brick that the cleaner can lift?
Frank and Mary are twins, and Mary wants to travel to our nearest star system, Alpha Centauri (4.30 lightyears away). How old will Frank be when she returns
In 1993 a giant 400-kg yo-yo with a radius of 1.5 m was dropped from a crane at height of 57 m, estimate its linear speed at the end of the fall
consider two masses m1 and m2 at the top of two frictionless inclined planes. both masses start from rest at the same
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