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The last stage of a rocket is traveling at a speed of7800 m/s. This last stage is made up of two parts that are clamped together, namely, a rocket case with a mass of 300.0 kg and a payload capsule by a mass of220.0 kg. When the clamp is released, a compressed spring causes the two parts to separate by a relative speed of920.0 m/s. Suppose that all velocities are along the same line.
1. What is the speed of the case after they separate?
2. What is the increase in kinetic energy after they separate?
3. What is the speed of the payload after they separate?
4. What is the total kinetic energy of the two parts before they separate?
The external magnetic field in a loop decreases from 0.1 Tesla to zero in 2 seconds. The loop of wire has ten turns, a radius of 10 cm, with its axis 45 degrees relative to the magnetic field. How large is the induced voltage in the loop?
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A spring is first stretched 2.0 cm from its unstressed length. Itis then stretched an additional 2.1 cm. How does the work required forthe second stretch compare to the work required for the firststretch (give a ratio of second to first)? (Be sure yo..
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A gem-quality diamond has a small flaw located 1 mm directly below one face. How far below the face does this flaw appear to an observer
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The function y(x, t) = (25.0 cm) cos(?x - 20?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y = +22.0 cm?
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