Which of the following is true concerning nuclear fusion?
a. it generally releases more heat than nuclear fission.
b. it involves the splitting of a nucleus into smaller fragments.
c. it can occur at room temperature.
d. all of the above

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.