Evaluate which of the following situations involves more power: 200j of work done in 20s or 50j of work done in 4s?

Which statement is correct? (a) Net force causes motion. (b) Net force causes change in motion. Explain your answer and give an example.

Which of the following terms are needed to describe velocity? Number Direction Mass Or units

What does M represent in the equation below? m = M + 5 log (d/10) A. luminosity B. spectral class C. absolute magnitude D. apparent magnitude

Mass is the measure of inertia. what does it mean?

Why are machines not a 100% efficient?

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

Gerry and Lena work in a modern physics laboratory and study nanotechnology, which is a new type of technology that allows control over individual particles as small as molecules or atoms.