Which of the following statements
indicates the best way to increase.
power?

Increase the amount of work done in a given time or do a given amount of work in less time

Explanation:

We'll begin by writing the expression relating power, work and time. This is illustrated below:

Power (P) = Work (W) / Time (t)

P = W/t

From the above equation, we can say that the power is directly proportional to the work done and inversely proportional to the time taken to do the work. This implies that:

1. An increase in the work done will increase the power and a decrease in the work done will also decrease the power.

2. An increase in the time taken to do the work will result in a decrease in power and a decrease in the time taken to do the work will result in an increase in the power.

From the above illustration, the best way to increase the power is to increase the amount of work done in a given time or do a given amount of work in a lesser time.

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.