You walk 75 meters in 5 hours. What is your speed?
A.10 m/hr
B.5 m/hr
C.15 m/hr
D...
Answers: 1
Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
Answers: 1
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