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Big yellow fishing swimming at 2.0m/s swallows little green fish at rest. Big yellow fish is 3 times as massive as little green fish. After big fish swallows little fish, they move together at the same final speed 1.5m/s with a combined mass of 4m. Model this as a completely inelastic collision. What fraction of big yellow fish's initial kinetic energy was lost is this collision?
A plastic block of dimensions 2.5 cm x 3.8 cm x 4.0 cm has a mass of 28.0 g. What is the density of the block
For two concentric conducting rings, the inner radius of the larger ring is 12.0 cm and the outer radius of the smaller ring is 4.0 cm. The electric potential of the inner ring is 0 and that of the outer ring is 10 V.
An X-ray photon with a wavelength of 0.260nm scatters from a free electron at rest. Find the initial momentum of the photon
A 57 kg skier starts from rest at a height of H = 19 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal.
Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer of brick and an R-19 layer of insulation, What is the total rate of heat loss through such a wall
Suppose a cylindrical habitat in space 5.90 km in diameter and 37.0 km long has been proposed. How fast would the cylinder have to rotate to imitate the Earth's gravitational field at the walls of the cylinder
The equation of a transverse wave on a string is y = (6.1 mm) sin[(30 m-1)x + (300 s-1)t] The tension in the string is 42 N. Find the linear density of this string
The volume expansion coefficient for kerosene is 900 x 10^-6 / k. If the kerosene was held inside a long thin metallic cylindrical tube, then what would be its linear expansion coefficient
The length of a simple pendulum is 0.79 m, and the mass of the bob at the end of the cord is 0.24 kg. What is the angular frequency of the motion
A 7.3 x10^3 kg space vehicle and its empty 6.8 x 10^2 kg booster unit are moving together through space at 370 m s. An explosion lasting 2.2s is used to separate the two parts.
A sphere of radius r starts from rest and rolls without slipping along a curved surface, Find the final speed v of the sphere's center of mass
In a liquid with a density of 1500 kg/m^3, longitudinal waves with a frequency of 360 Hz are found to have a wavelength of 7.70 m. Calculate the bulk modulus of the liquid
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