Lydia proposes to send an interstellar probe off in stages. The first stage, traveling radially outward at 0.600 c relative to Earth, will send off a second stage traveling in the same direction as the first stage at a speed of 0.600 c relative to the first stage. Finally, the second stage will send off a third stage traveling in the same direction at 0.600 c relative to the second stage. Relative to Earth, the speed of the third stage will have a magnitud?

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

Which describes increasing the efficiency of energy resource