Answers: 2
Physics, 22.06.2019 00:30
There are weak or strong attractive forces between atoms of liquids with a high viscosity
Answers: 3
Physics, 22.06.2019 01:30
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=3.00ă—106n/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 ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .
Answers: 2
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
Answers: 1
My questions are in the picture:
Please help.
...
Please help.
...
Mathematics, 15.05.2021 02:30
Mathematics, 15.05.2021 02:30
Health, 15.05.2021 02:30
Social Studies, 15.05.2021 02:30
Mathematics, 15.05.2021 02:30
Physics, 15.05.2021 02:30
Biology, 15.05.2021 02:30
Mathematics, 15.05.2021 02:30
Biology, 15.05.2021 02:30
History, 15.05.2021 02:30
Mathematics, 15.05.2021 02:30
Mathematics, 15.05.2021 02:30
Spanish, 15.05.2021 02:30