Physics, 18.09.2019 01:20, dianaosorio33895
Calculate (a) the electric potential established by the nucleus of a hydrogen atom at the mean distance of the circulating electron , (b) the electric potential energy of the atom when the electron is at this radius, and ( c) the kinetic energy of the electron, assuming it to be moving in a circular orbit of this radius centered on the nucleus. (d) how much energy is required to ionize the hydrogen atom? express all energies in electron volts. ( e = 1.60217657 Ć 10-19 coulombs). note that the answer to (d) is very important and a good number to remember. it sets the scale of the energy of all chemical interactions. chemistry is just energy changes due to rearrangements of charges with a bit of quantum mechanics thrown in!
Answers: 3
Physics, 22.06.2019 10:30, Bayabbay8380
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 13:30, Bra1nPowers
6ā48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kgĀ·8c.
Answers: 3
Physics, 22.06.2019 19:00, sanchez626
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Physics, 22.06.2019 22:00, petroale000
Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false
Answers: 2
Calculate (a) the electric potential established by the nucleus of a hydrogen atom at the mean dista...
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