7. a steel marble leaves a 0.87-meter high table with an initial horizontal
velocity of 1.3 m/s. a.) predict the time required for the pool ball to fall to
the ground and b.) the horizontal distance between the table's edge and the
ball's landing location. y = 14t? x=vexet

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.

Which is a substance that can be separated by physical means and is not the same throughout