Answer:
Removing some of the books reduced the mass of the box, and less force was needed to push it across the floor.
In the circuit outside of the battery the electrons have to expend all of their energy on the internal resistance of the battery which causes heating
The answer for this would be B!!
Answer:
60 000 N
Explanation:
1 pa = 1 N/m^2
you have 300 000 of these = 300 000 N /m^2
but only an area of .2 m^2
300 000 N / m^2 * .2 m^2 = 60 000 N
Reduce the friction. Since the total energy is conserved, the only way to improve its work capacity is by reducing energy that doesnt go into work.
