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A ball of mass 0.30 kg is fired with velocity 160 m/s into the barrel of a spring gun of mass 2.5 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of the ball's initial kinetic energy is stored in the spring?
A telescope mirror has a radius of curvature of 18.0 m. What is the diameter of the image of the Moon produced by this mirror
Calculate Earth's average speed relative to the Sun (in m/s). According to my book, the answer is 3.0x10^4 m/s
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. What is the mass of the unknown atom
A block with mass m = 15kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4234N/m after being compressed the distance x1 = 0.536m from the spring's unstretched length. The floor is frictionless except for a roug..
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, Find the speed of the chair
To investigate the structure of extremely small objects, such as viruses, the wavelength of the probing wave should be about one-tenth the size of the object for sharp images. If you use light of this wavelength, what would be the energy (in eV) of..
A golf ball is dropped from rest from a height of 9.50 m. It hits the pavement, then bounces back up, rising just 5.50 m before falling back down again. find the total amount of time that the ball is in the air
A horizontal conductor in a power line carries a current of 5500 A from south to north. Find the magnitude and direction of the magnetic force
A uniform magnetic field is at right angles to the plane of a wire loop. The field decreases by 0.16Tin 3.0×10?3s and the magnitude of the average emf induced in the loop is 82V, What is the area of the loop
A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once the chair is in motion, a 328N horizontal force keeps it moving at a constant velocity. A 23.00 kg chair initially at rest on a horizo..
The fundamental frequency of a pipe that is open at both ends is 598Hz. How long is this pipe
Two lenses, one converging with focal length 21.0cm and one diverging with focal length ? 10.0cm , are placed 25.0?cm apart. Find the final image distance from second lens
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