Physics, 09.04.2021 19:50 melanie687
A 3.5-inch floppy disk in a computer rotates with a period of 2.00 + 10-'s What are (a) the angular
speed of the disk and (b) the linear speed of a point on the rim of the disk? (c) Does a point near the center of the disk have an angular speed that is greater than, less than, or the same as the angular speed found in part
(a)? (Note: A 3.5 inch floppy disk is 3.5 inches in diameter.)
Answers: 2
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Physics, 22.06.2019 22:00
Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane
Answers: 1
A 3.5-inch floppy disk in a computer rotates with a period of 2.00 + 10-'s What are (a) the angular...
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