An object of mass m is thrown vertically upward from the surface of Venus, where the acceleration due to gravity is g2. The initial speed is v2, and the object reaches a maximum height of y2. If a similar object is thrown upward with initial speed v1=7v2 from the surface of Saturn's moon Tethys, its maximum height is y1. The acceleration due to gravity on Tethys is g1.Express the ratio of y1 to y2 in terms of g2 and g1.

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field. it is in the opposite direction from that of the original external field. it has a direction determined entirely by the charge on its surface. it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0