Whats the answer will mark brainliest

  C

Explanation: kinetic energy means enery of movement, so if particles move, they rub together and temperature increases.

C

Explanation:

you got it right in the pic...

also the temperature has an effect on the bonds that connect atoms, if the temperature is higher, then there is more pressure the bonds are more likely to break because when there is more pressure the atoms are moving around more

the components of a vector are the parts of the vectors that are to each other.

b perpendicular

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.