Awater skier notices that the distance between successive wave crest is 12 meters. the wave crests pass his boat every 4.8 seconds. how fast are the waves traveling? a.456hzb. 638hzc. 368hzd. 213hz

Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star

What can you increase the strength of an electromagnet by

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