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As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 115 bpm. This high rate serves as objective evidence of your excitement. However, an observer on the Moon, an expert in pulse rate telemetry, measures your pulse rate as slower. In fact she detects only 0.531 times the rate you count and claims that you must be pretty calm in spite of everything that is going on. Obtain how fast are you moving with respect to the Moon?
90 kW of power is delivered to the other side of a city by apair of power lines with the voltage difference of 13942.8 V. What is the voltage change along each line
a student standing on level ground finds that an imaginary straight line drawn from his eye to the top of a tree that
A Carnot engine operates between the temperatures 420 K and 300 K. How much heat must be given to the engine to produce 2500 J of work
The lightbulb in the circuit shown in the figure(Figure 1) has a resistance of 14? and consumes 9.7W of power, find speed of the rod
Light shines during a single slit whose width is 8.60 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m away. The distance among the middle of the central bright fringe and the first dark fringe is 4.75 mm. What is the wavelength..
A soccer ball is kicked at an angle of 30 degrees by the flat ground, and at an initial speed of 50ft/s. Neglecting wind resistance, how far away will the ball land? Give your answer in units of ft.
Lead has a latent heat of fusion of 2.32x104 J/kg, a specific heat of 128 J/(kg K), and a melting point of 228°C. Calculate heat needed to melt the bullet
A 0.144 kg baseball is pitched horizontally at +38 m/s and after it is hit by the bat it moves horizontally at -38 m/s.
Batman (mass = 102 kg) jumps straight down from a bridge into a boat (mass = 550 kg) in which a criminal is fleeing. What is the velocity of the boat after Batman lands in it
A ball is thrown upward from the ground with an initial speed of 23.90 m/s; at = same instant, a ball is dropped from a building 16 m high. After how long will the balls be at the same height.
The platter of a computer hard drive disk rotates at 5400rpm.
Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 370 to 260 K. What is the work done by (or done to) the gas? Include the algebraic sign.
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