The car is the heaviest object there and mass is proportional to force, meaning the heavier it is the bigger the force should be in order to move it.
That depends on what you want to use them for.
As sources of light, they are somewhere around 15% - 20% efficient.
As heaters, they are somewhere around 80% - 85% efficient.
Answer:
<h2>Electric charge</h2>
Explanation:
The rate of the flow of electric charge is known as electric current. <u>By convention, the direction of electric current is always the direction of net flow of positive charge.</u>
B.
This equation quantifies the inter convertibility of mass and energy and helps us understand the large amount of energy that would be released if mass were converted to energy.<span />
