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Q1. A 27 pound meteorite struck the car, leaving a dent 24 cm deep in the trunk. If the meteorite struck the car with a speed of 440 m/s, what was the magnitude of its deceleration, assuming it to be constant?
Q2. Assume intelligent life is discovered on a planet orbiting a star 5 light years away from the sun. After many years of communication and planning, an exchange program is arranged thusly:
Interstellar spaceships will be launched simultaneously from each planet toward the other. Both spaceships will travel at v/c=0.60 towards the other planet. To avoid the accidental head on collision, each spaceship will flash an omni directional light beacon at a rate of 10^-6 years (about once every 30 seconds) as measured in the spaceship's IRF. The beacon would be turned on immediately after launch.
Neatly sketch a Minkowski Diagram for this situation. Label all events and axes.
What is the distance between the particles at this time? The Coulomb constant is 8.95755 × 109 N • m2/C2, the elemental charge is 1.6721 × 10-19 C, and the acceleration due to gravity is 9.8 m/s2.
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Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
What is an acceleration of two falling sky divers (mass 100.0 kg including parachute) when the upward force of air resistance is equivalent to one-fourth of their weight. How fast would the father be moving.
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Find out an average acceleration of the motorcycle
A loudspeaker of mass 19.00 is suspended the distance of = 1.80 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.50. What is the tension in each of the cables.
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