(a) calculate the speed in m/s of a satellite in an orbit 660 km above the earth's surface. 7500 m/s (b) suppose a loose rivet is in an orbit of the same radius that intersects the satellite's orbit at an angle of 90° relative to earth. what is the velocity in m/s of the rivet relative to the satellite just before striking it? (enter the magnitude.) 10650 m/s (c) given the rivet is 4.00 mm in size, how long in seconds will its collision with the satellite last? (assume the rivet is flattened like a pancake on the surface of the satellite during the collision.) (d) if its mass is 0.400 g, what is the average force in newtons it exerts on the satellite? (enter the magnitude.) n (e) how much energy in joules is generated by the collision? (the satellite's velocity does not change appreciably, because its mass is much greater than the rivet's.)

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

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What was the first instrument to ever record an earthquake?