Physics, 07.09.2019 16:10 sindy35111
While discharging a fully charged capacitor c=1x10^-6 f through a resistance r=2x10^6 ohms, how much time (in seconds) will it take for the energy of the capacitor to drop to 1/7 of the initial energy? a) 2.00
b) 10.0
c) none of these
d) 1.90
e) 0.50
Answers: 1
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 23.06.2019 01:30
Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the force between the oppositely charged ions.
Answers: 3
While discharging a fully charged capacitor c=1x10^-6 f through a resistance r=2x10^6 ohms, how much...
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