Answer:
B. A water wheel in a dry river
Step-by-step explanation:
Work is said to be done when a force moves a body or an object through a certain distance in the direction of the force. Thus for work to be done, force and distance are required.
i.e Work done = Force x distance
It is measured in Joules.
Also, the work done by an object could be a measured of potential energy.
So that,
Work done = potential energy = mass x gravitational force x height
Considering the collage in the question, since the water wheel is in a dry river no work is done. Water wheel is a device that functions through the flow of water body, thus causing its rotation.
Draw a rectangle and make 4 boxes in the shape ,then shade one box
(5)(2)(5)(1) could be an answer
Answer:
Step-by-step explanation:
Answer:
<u>3 days</u>, <u>27</u>
Step-by-step explanation:
After 3 days :
- 3³ = 27 belts
- 4(3) + 15 = 12 + 15 = 27 belts
After 3 days, the number of belts and wallets sold will be the same, equal to 27.
