Find the maximum rate of change of f at the given point and the direction in which it occurs. F(x, y) = 8 sin(xy), (0, 3).

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

What happens to the electrostatic force between two charged particles if the distance between them is doubled?