Two students push on a car stuck in the mud with a force of 20 Newtons, 21
but they are unable to move it. How much work have they done?

A. O Joules

B.20 Joules

C.40 Joules

D. Not enough information given to answer this question.

D

Explanation: We need to know how much the car weighs in order to determine how much more they need to push.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

really dont know just need some points