perfectly insulated room has temperature 72o. the source of climate control is turned off. But a refrigerator is put into the room and plugged in. The adjustment inside the refrigerator is turned to “maximum cold” and the door to the refrigerator affects the temperature in the room. After one hour, is the room hotter or colder than the original 72o.

electrical power

the answer you are looking for is d. there are no holes for blood to enter or leave the system. your welcome

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.