When is an object in free fall

A sailboat moves north for a distance of 10.00 km when blown by a wind 30° east of south with a force of 5.00 * 104 N. How much work was done by the wind?

How do you get a bigger impulse

What does it mean for a physical system to be in Static Equilibrium

A net force of 200 newtons is applied to a wagon for 3 seconds. This cause the wagons to undergo a change in momentum of?

Why do objects of different matter not obtain the same temperature after thermal equilibrium? example copper and aluminum

What are the equations for acceleration and net force?

Which is a diatomic molecule? A. Ar B. CO C. CO2 D. NaCl

A sample of N-type silicon is at the room temperature. When an electric field with a strength of 1000V / cm is applied to the sample, the hole velocity is measured and found to be 2 * 105 cm/sec. a.

Which of the following is a vector quantity? A. 83 ounces of liquid B. 55 km/hr in a truck C. 15 seconds of travel D. 10 m/s down

Which of the following best describes the ultraviolet catastrophe of blackbody radiation? A. As energy is added to an object acting as a blackbody radiator, its emissions move to the ultraviolet part of the electromagnetic spectrum. B.