How does the matter and energy in a system naturally change over time?
a. it increases...
Physics, 19.10.2019 04:00 Elliescott9231
How does the matter and energy in a system naturally change over time?
a. it increases in energy.
b. it becomes more spread out.
c. it becomes more efficient.
d. it decreases in entropy.
Answers: 3
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A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
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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
Answers: 2
Physics, 23.06.2019 02:00
Calculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energycalculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energy
Answers: 1
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