A crane is holding up a concrete block with a steel cable. What is a contact force that is acting on the block?
A.
tension
B.
static electricity
C.
magnetism
D.
gravity

Which object is most likely represented by a dot?

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

How can you increase the strength of an electromagnet?