I believe a vector needs to be set. but no 100% sure!
I hope this helps!
Sure !
The work is (weight of the book) x (height of the desk above the floor).
The force (weight) is the result of gravity.
It was gravity that did the work.
Answer:
Speed is a scalar quantity it is the rate of change in the distance travelled by an object, while velocity is a vector quantity it is the speed of an object in a particular direction.
Answer:
Electrons
Explanation:
Ionised atoms loose and gain electrons.
hope it helps!
The answer is C radio waves are very high energy mechanical waves.