subject
Physics, 14.02.2020 03:28 blaze9889t

As demonstrated in lecture, a Van de Graaff generator (VGG) is a machine that can separate charges on two different conductive spheres. It used a belt to transport electrons off of a large, conductive sphere. The electrons were moved to a different conductive sphere, creating a large potential difference between the two spheres. In other words, it is an electrostatic generator. If a person holds onto the large sphere while the VGG is active, s / he will lose electrons at the same rate as the sphere, until connection is broken. If a conductive metal disk is connected to an active VGG, the disk will lose electrons at the same rate as the sphere. A 60 kg person is standing on a thin, conductive disk (the person is wearing thick rubber shoes, so the person is electrically separate from the conductive disk). The disk is connected to a VGG and the person places a hand on an identical, but separate VGG. If each of the VGG are activated (turned on) at the same instant and both remove electrons at a rate 500 determine: a. The amount of time the person would have to hold onto the VGG to float 1 mm above the conductive disk. b. The amount of mass that the person will gnin or lose during this time. Did the person gain or lose this mass?

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 19:30, QueenNerdy889
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
image
Physics, 22.06.2019 20:20, breannaasmith1122
Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.
Answers: 3
image
Physics, 23.06.2019 00:00, kerena8291
You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the
Answers: 3
image
Physics, 23.06.2019 00:30, Ltik11900
What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr
Answers: 2
You know the right answer?
As demonstrated in lecture, a Van de Graaff generator (VGG) is a machine that can separate charges o...

Questions in other subjects:

Konu
Health, 18.03.2021 20:20