Physics, 26.04.2022 14:10, yungdaggerdic4543
A child of mass 10 + 0.03 kg is sleeping in a bilum hanging 2 + 0.005 m above the ground. What is the percentage error in the potential energy of the child? Take g = 10+ 0.01 m/s2. -
Answers: 2
Physics, 22.06.2019 01:30, kadinmorgan
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00Δβ106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ΔΒ΅0=8.85Δβ10Γ’β12c2/(nΓ’βΉβ¦m2) .
Answers: 2
Physics, 22.06.2019 05:00, DASASDAEDWEDA
Wavelength, frequency, and energy are related. what happens to a wave as itβs wavelength gets shorter?
Answers: 2
Physics, 22.06.2019 19:00, Geo777
Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
A child of mass 10 + 0.03 kg is sleeping in a bilum hanging 2 + 0.005 m above the ground. What is th...
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