Answer: i only have the answer for the first question and the type of energy that could be converted by using the stationary bike is from mechanical energy to kinetic energy.
Explanation:
kinetic energy is used when an object is in motion and mechanical energy is used when the form of energy is in moving parts or matter.
Answer:
umm I'm sorry bro, I dont think you posted the excerpt with this question so I cant answer that
I believe its B
im not 100% sure but i hope i helped<span />