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JSUN

its the planets

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14y ago

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What is the electron velocity formula used to calculate the speed of electrons in a given system?

The formula used to calculate the speed of electrons in a given system is v e/m, where v represents the velocity of the electron, e is the charge of the electron, and m is the mass of the electron.


At what speed does a 1.00 kg mass have a kinetic energy of 1.00 joules?

***Answer 1*** Remember, KE= (1/2)m(v^2), 1 eV=1.6*10^-19 J -you need to convert, since 1J= 1N*m m of an electron is 9.1*10^-31 kg m of a proton is 1.67*10^-27 kg Good luck! ***Answer 2*** Answer 1 only works for non-relativistic speeds, also when you are dealing with Nuclear Physics you DO NOT want to convert out of eV. -------------------------------------------------------- E(total) = Energy Kinetic +Energy rest But in Nuclear Physics E(total) is actually; E^2 = (pc)^2 + (mc^2)^2 E(total) = E(kinetic) + E(rest) => 1.00keV = (pc)^2 from there you should be able to finish it.


How can you find energy of a wave?

The energy of a wave can be calculated using the formula E = hf, where E is the energy, h is Planck's constant (6.626 x 10^-34 J*s), and f is the frequency of the wave. Alternatively, the energy of a wave can be determined by the formula E = 1/2 * m * v^2, where E is the energy, m is the mass of the object vibrating in the wave, and v is the velocity of the wave.


What is the formula for kinectic energy?

The formula for kinetic energy is KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.


What does kinetic enrgy depend on?

KE = 1/2*m*v^2 On mass (m, in kg) and on velocity squared (v, in m/s)