Most photographs will be made using a shutter speed of 1/60 or faster.
a. true
b. fals...
Physics, 16.09.2019 21:30 lberman2005p77lfi
Most photographs will be made using a shutter speed of 1/60 or faster.
a. true
b. false
Answers: 1
Physics, 22.06.2019 14:30
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
Answers: 3
Physics, 23.06.2019 07:00
Conventional hot-water heaters consist of a tank of water maintained at a fixed temperature. the hot water is to be used when needed. the drawback is that energy is wasted because the tank loses heat when it is not in use, and you can run out of hot water if you use too much. some utility companies are encouraging the use of on-demand water heaters (also known as flash heaters), which consist of heating units to heat the water as you use it. no water tank is involved, so no heat is wasted. a typical household shower flow rate is 2.50 gal/min (9.46 l/min ) with the tap water being heated from 51.0 ˚f (10.6 ˚c) to 120 ˚f (48.9 ˚c) by the on-demand heater.what rate of heat input (either electrical of from gas) is required to operate such a unit, assuming that all the heat goes into the water?
Answers: 3
Physics, 23.06.2019 09:50
If one object has a large redshift and another object has a small redshift, what can we conclude about these two objects?
Answers: 1
Physics, 23.06.2019 10:00
Work requires a force which causes: potential energy or motion
Answers: 2
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