Aball is released from the top of a hill. how fast is the ball going when it reaches the base of the hill? approximate g as 10 m/s2 and round the answer to the nearest tenth.

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?