3 point charges q, 3q and 5q are located at 3i, 4j and -3i respectively, where all distances are in cm. determine the magnitude and direction of the electrostatic force acting on the smallest charge. (assume q = 2mC, k= 9×10^9)​

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.