All of the following best explain why the Sun is not the only source of energy except? 1.Energy can be converted into different forms.
2.There are different sources of energy such as biological and mechanical energy.
3.There are different forms of energy other than light energy.
4.Energy can be created and destroyed.

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above