An iron fence is left unpainted and it reacts with the oxygen in the air forming rust the formation of rust is an oxidation-reduction, but is also an example of?

If the force of friction on the crate is a steady 70 N, find the KE gained by the crate

If she has a mass of 45kg and is 25 meters high, what is her potential energy?

Why should we convert units within the metric system?

A marble has a mass of 0.002 kg. What is its weight in Newtons?

What is the definition of Physics?

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

Electricity problem (coulomb's law)