A hockey puck is pushed by a stick with a force of 750 newton's. the puck tracked 2.0 meters in 0.30 seconds. how powerful is the push? (ignore frictional effects.)

a. 1,500 W

b. 5,000 W

c. 112 W

d. 450 W

What time of energy does a thermometer measure

The sun radiates about 3.6 x 1026 joules of energy each second. How much mass does the lose each second? Show all of your work and be sure all numbers must be clearing identified and explain in your work.

As shown in the diagram below, a proton (p), mass 1 u, travelling in the + x direction with speed vpi, collides elastically, not head-on, with a stationary deuteron (d) with mass 2 u. (Here u means the atomic mass unit. 1 u = 1.

What upward gravitational force does a 5600kg elephant exert on the earth?

Define and explain Columb's law.

Which of the following astronomical bodies is the highest in hierarchy earth galaxy solar system star

The force is proportional to what measurement

A moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be

A train's mass is 18181.81 kg. What is its weight?

A body of mass 20kg is set in motion by two forces 3N and 4N acting at right angles to each other, determine the magnitude of the acceleration