A roller coaster loop has a frequency of .88 Hz. The loop has a radius of 11.932 m. The coaster has a mass of 543 kg. Find the velocity of the loop
and then find the Fn of the roller coaster at the top of the loop.
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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