On a 95 meter high cliff, a cannon fires a cannonball with an initial speed of 150 m/s at an angle of 37° to the horizontal. The ball passes through its maximum height at point A, point B which is at the same height as the cannon, and strikes the ground at point C. Determine the amount of time that the cannonball is a projectile.

What horizontal distance does the cannonball travel before striking the ground?

Difference between series and parallel circuits

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above