Question

22. The mechanical efficiency of any machine is always ____________________ than 100 percent.
(1 point)

23. When a pole vaulter flexes the pole, the pole vaulter increases the pole’s ____________________ potential energy.
(1 point)

24. Wind turbines convert ____________________ energy into electrical energy.
(1 point)

Answer 1

22. The mechanical energy of any machine is LESS than 100 percent.
23. When a pole vaulter flexes the pole, the pole vaulter increases the the pole,s ELASTIC potential energy.
24. Wind turbines convert WIND energy into electrical energy.

Answer 2

Thank you so much! I really appreciate it. :)

Answer 3

you are welcome!...:)