Linda wants to measure the effects of mass on the period of a pendulum swing. what variable should be controlled in her experiment? (points : 3) a. mass of the bob b. length of the string c. period of the swing

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

What does the law of conservation of mass state?

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (