Answer:
A. how dose each model effect the temperature of a substance
Explanation:
Answer:
The work done by you on the two cart system is 2 N-m
Explanation:
Work done is the product of force and displacement.
W = F * D
Substituting the given values we get -
W =

The work done by you on the two cart system is 2 N-m
Answer:
i. F = 1.3 x
N
ii. The direction of the force of attraction exerted by the proton on the electron is towards the itself (i.e a pull).
Explanation:
Since the given charges are opposite, then the force of attraction is experienced. The force of attraction between the two charges can be determined by:
F = 
where F is the force, k is the constant,
is the charge of the electron,
is the charge on the proton, and d is the distance between them.
So that; k = 9.0 x
N
,
= 1.6 x
C,
= 1.6 x
Thus,
F = 
= 
= 1.3061 x
F = 1.3 x
N
The force between the charges is 1.3 x
N.
ii. The direction of the force of attraction exerted by the proton on the electron is towards the itself.
The best option will be 4. In the opposite direction of the applied force. If we think about angular motion and take clockwise direction as negative and anti-clockwise as positive. By finding the direction that is clockwise Or negative you can say. So, the movement of the spool will be opposite in direction of the applied force.