6. Critical thinking Which of the following elements are likely to be formed in the sun at some time in its life? (list all answers that apply)

a. Helium b. carbon c. iron d. uranium

Work = force × a. work b. energy c. distance d. momentum

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer