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One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together after the collision and move off with a common velocity. Momentum is conserved. The speed of the object that is moving initially is 21 m/s. The masses of the two objects are 2.6 and 7.0 kg. Determine the final speed of the two-object system after the collision for the case (a) when the large-mass object is the one moving initially and the case (b) when the small-mass object is the one moving initially.
A piano tuner stretches a steel piano wire with a tension of 830N . The wire is 0.400m long and has a mass of 3.10g. What is the frequency of its fundamental mode of vibration
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A rocket of total mass 3180 KG is travelling in outer space with a velocity of 115 m/s. To alter its course by 35.0°, how much mass must be expelled
While surveying a cave, a spelunker follows a passage 190{\rm m} straight west, find the magnitude and direction of the fourth displacement
Two spheres are launched horizontally from a 1.2 -high table. Sphere is launched with an initial speed of 4.5. What is the time for the sphere to hit the floor
A weight lifter does a series of arm raises while holding a 3.00 weight. Her forearm (including the hand) starts out horizontal and pivots to a vertical position about her elbow. What is the change in its gravitational potential energy with each ar..
Two clarinets are sounding tones of 190 Hz and 192 Hz, respectively. What is the beat frequency between the third modes
The supersonic aircraft Concorde has a length of 62.7m when sitting on the ground on a typical day when the temperature is 18.0 C. find the temperature T of the Concorde's skin in flight
in a hydraulic system comprised of a reservoir and a pump which is 4 ft above the oil level what would be the pressure
A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. What is the the magnetic field on the axis of the solenoid
A 2.80-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.10 m down the incline in 1.20 s. Find the magnitude of the acceleration of the block.
A block of wood in the shape of a cube, 5.0 cm on a side, is floating in water with its top face parallel to the surface of the water. With a ruler, What is the density of that piece of wood
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