The drawing shows one non-contact force. Name two other non-contact forces. Tick one box.

A friction and magnetism
B static electricity and thrust
C drag and thrust
D magnetism and static electricity
[1 mark

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

How would doubling the made of an object change the objects potential energy

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n