Physics, 02.10.2019 02:00, wirchakethan23
Choose the answer that explains the photoelectric effect.
metallic plates emit protons only when light of a certain minimum frequency shines on them.
metallic plates emit electrons when the cumulative effect of light causes electron movement.
metallic plates emit electrons only when light of a certain maximum frequency accumulates energy.
metallic plates emit electrons only when light of a certain minimum frequency shines on them.
taylor's experiment:
accurately measured the speed of light
locked together the phases of two light sources so that the interference pattern would not shift
showed that man's reaction time was much slower than the speed of light
showed that individual photons have wave characteristics
Answers: 2
Physics, 21.06.2019 16:30, yousifgorgees101
Which of the following would not be taken into consideration when describing the quality of a sound
Answers: 2
Physics, 22.06.2019 15:20, avree4722
Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.
Answers: 3
Physics, 22.06.2019 18:30, kayleahrayne
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Choose the answer that explains the photoelectric effect.
metallic plates emit protons o...
metallic plates emit protons o...
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