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A diver springs upward from a three-meter board. At the instant shecontacts the water her speed is 8.90m/s and her body makes an angleof 75.0o with respect to the surface of the water.
A) determine her initial velocity, both magnitude and direction.
B) How much time does she spend in the air?
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 51.8° and 43.2°, respectively
The exterior walls of a house have a total area of 204 m2 and are at 11.4°C and the surrounding air is at 7.4° C. Find the rate of convective cooling of the walls
A 21 g bullet travelling at 255 m/s is fired into a 0.452 kg wooden block anchored to a 100 N/m spring. How far is spring compressed to the nearest thousandth of a meter.
A centrifuge is a common laboratory instrument that separates components of differing densities in solution. what is the magnitude of its angular deceleration
Write out the constants for b (B1 and B2) in terms of the previous constants for a Do the same for c) in terms of the constants for b), the constants in d in terms of those for c and finally the constants for a) in terms of those from d.
A particle leaves the origin with an initial velocity v=(2.4m/s)x and moves with constant acceleration a=(-1.90 m/s2)x + (3.20m/s2)y. What is the particles velocity at this time
A paratrooper pilot fell 360 m after jumping without his parachute opening. He landed in a snow bank, creating a crater 1.50 m deep, but survived with only minor injuries. Assume the pilot's mass was 80 kg and his terminal velocity was 50 m/s.
The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?
A 3.07 kg particle has a velocity of (3.10 i hat - 4.04 j hat) m/s. Find the magnitude and direction of its momentum
A circular coil enclosing an area of 200 cm2 is made of 210 turns of copper wire. The wire making up the coil has resistance of 3.0 ?, what is the average current in the coil during that time
A pipe open at both ends has a fundamental frequency of 120 Hz. what is the fundamental frequency of this pipe
A meter stick travels past an observer at the speed of 0.9c. What length would be recorded by the observer
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