A ball is thrown straight upward from the edge of a cliff, a height H above the ground below. The ball leaves the cliff moving upward at speed v0. After the ball is launched, air resistance can be neglected. At the same instant that the ball is launched, an insect at rest at the top of the cliff moves downward with a constant downward acceleration. The ball and the insect both reach the ground at the same time. The positive ydirection points upward, the ground is at y=0 and the cliff is at y = H. Required:
Draw a single y-t graph that shows the motion of both the ball and the insect and car #2, and draw a single vy-t graph that shows the motion of both the ball and the insect.

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

What are the north and south poles of a solenoid change with?

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages