A crane performs 1820 J of work by lifting an object 35 meters. How much force did the crane exert?

A soccer ball was accelerated due to force. The acceleration was 10m/s2. A person kicks the soccer ball 3 times harder (with X3 more force).

What are the two categories of waves

How are domains arranged in materials that are magnetic and in ones that are not

What is the Meaning of Electromagnetism?

A battery powered electric motor uses what type of current?

Block B has mass 4.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass 2.00 kg and sits at rest on top of block B. The coefficient of static friction between the two blocks is 0.400.

T=2π√ (l/g) is dimensionally correct

A penny falls from a windowsill which is 25.0 m above the sidewalk. How much time does a passerby on the sidewalk below have to move out of the way before the penny hits the ground?

Show that the Newton has the units of mass times acceleration.

Light travels at 150000000km from the sun to earth in 8 minutes. What speed is this in Km/s