Fill in the following blanks with suitable words:
a) To every action, there is an ______ and ______ reaction.
b) Momentum is a ________ it emit is ________
c) Newton’s second law of motion can be written as Force is the product of mass and _______ or force = ________ of change of ________
d) Forces in a Newton’s third law pair have equal _______ but act in opposite ________
e) In collisions and explosions, the total ______ remains constant, provided that no external _________