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Ocean waves of wavelength 100 m have a speed of 6.20 m/s; ocean waves of wavelength 20.0 m have a speed of 2.80 m/s. Suppose that a sudden storm at sea generates waves of all wavelengths. The long wavelength waves travel fastest and reach the coast first. A fisherman standing on the coast first notices the arrival of 100 m waves; 10.0 hours later he notices the arrival of 20.0 m waves. How far is the storm from the coast?
The Cosmic Background Radiation Outer space is filled with a sea of photons, created in the early moments of the universe. What is the peak frequency of this radiation
While surveying a cave, a spelunker follows a passage 190{\rm m} straight west, find the magnitude and direction of the fourth displacement
If a system in equilibrium with two masses m1 and m2 are placed at distances d1 and d2 from the fulcrum, then f1 d1= f2 d2. Is this the same as saying that m1 d1= m2 d2? Give details.
It's 37 by road from town to a ski resort, What's the road's average inclination angle
A railroad car of mass 25,000 kg is moving with a speed of 5.50 m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and initially at rest.
A child is playing by jumping on a bathroom scale. The mass of the child is 31 kg and when he stands on a bathroom scale, the spring inside the scale compresses 0.46 mm. what is the maximum height the child can jump on the scale
The distance between between the 1st and 10th minima of a double-slit system is 18 mm, find the wavelength of light generating the interference pattern
A crate of mass 10.3 kg is pulled up a rough incline with an initial speed of 1.51m/s. The pulling force is 97N parallel to the incline, which makes an angle of 20.3 ° with horizontal. The coefficient of kinetic friction is 0.400, and the crate is..
A car accelerates from rest to a kinetic energy of 1.65 x 10^5 Joules in a distance of 646 m. How much force did the car's engine deliver to produce the change in kinetic energy.
A monatomic ideal gas expands from 1.00 m^3 to 2.5 m^3 at a constant pressure of 2.5 x 10^5 Pa. find the change in internal energy of the gas
A novice skier, starting from rest, slides down a frictionless 35.0 Degrees incline whose vertical height is 185 m. How fast is she going when she reaches the bottom
A hypodermic syringe is attached to a needle that has an internal radius of 0.304 mm and a length of 3.05 cm. What force must be applied to the plunger, which has an area of 1.05 cm2
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