Answer:
See the explanation below
Explanation:
Energy can neither be created nor destroyed but can be transformed from one form to another.
When we eat food the chemical energy in the food is transformed to kinetic energy that enables us to do work in the laboratory
Answer:
The total magnification will be 40x.
Explanation:
As we know if the magnification of the eyepiece of a microscope be 
and that of the objective be 
, then the total magnification is given by
Given, 
and 
Therefore total magnification is 
Answer:
1.8 J
Explanation:
I had this exact question today and found someone who had solved it before, this was their response to the work done by gravity. They used the name "physicsmom"
Vertical distance = 1.8 sin 30 = .9 m
W = 2 N * .9 m = 1.8J
Good luck! I hope this helps!
