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What speed of a proton that is accelerated from rest through a potential difference of 120V?
The speed of the proton can be calculated using the formula for kinetic energy: KE = 1/2 mv^2, where KE is the kinetic energy, m is the mass of the proton, and v is the speed of the proton. The potential energy gained by the proton is equal to qV, where q is the charge of the proton and V is the potential difference. Setting the potential energy gained equal to the kinetic energy, we can solve for v.
What happens to potential energy when a proton is brought closer to an electron?
Protons all have positive charge, so they repel each other. It takes work to push two protons closer together, so you're putting energy into them (potential energy increases). If you let go, the potential energy is released when the protons fly apart; it becomes kinetic energy.
When A proton initially at rest falls through a p.d of 25000v .what speed does it gain?
The kinetic energy gained by the proton is equal to the work done on it by the electric field. Using the equation for work, you can find the final velocity of the proton. Given the potential difference (voltage) of 25000 V, you can calculate the speed gained by the proton.
How much work does the electric field do in moving a proton from a point with a potential of plus 140 V to a point where it is -80 V?
Work = (Charge)x(Voltage change). The Charge on a proton is +e. The change in voltage is (-80 V - 140 V) = -220V. So it is -220 eV. It is negative, because the proton has moved to a lower potential, and therefore gave up energy to the field.
Why is energy released in the proton-proton chain reaction?
Energy is released in the proton-proton chain reaction because when protons combine to form helium nuclei, a small amount of mass is converted into energy according to Einstein's famous equation, Emc2. This energy is released in the form of gamma rays and neutrinos.
What speed of a proton that is accelerated from rest through a potential difference of 120V?
The speed of the proton can be calculated using the formula for kinetic energy: KE = 1/2 mv^2, where KE is the kinetic energy, m is the mass of the proton, and v is the speed of the proton. The potential energy gained by the proton is equal to qV, where q is the charge of the proton and V is the potential difference. Setting the potential energy gained equal to the kinetic energy, we can solve for v.
What happens to potential energy when a proton is brought closer to an electron?
Protons all have positive charge, so they repel each other. It takes work to push two protons closer together, so you're putting energy into them (potential energy increases). If you let go, the potential energy is released when the protons fly apart; it becomes kinetic energy.
What is the amount of energy gained by a proton accelerated through a potential difference of 50 V?
The charge of proton 'e' is 1.602 x 10--19 C. If it is subjected to a potential difference of 50 V, then the electrostatic potential energy gained by that proton will be 50 eV. To get the energy in joule, replace 'e' by 1.602 x 10 --19. Then, the required value is 8.01x10 --19 J eV is the unit of energy which will be more convenient while dealing with very very small amount of energy. 1 eV = 1.602 x 10 --19 J
Why the stability decrease with increasing atomic mass?
Stability depends on to proton/neutron ratio; and this ratio increase with the atomic number.
What happens to the energy if an electron moves away from a proton?
to have a proton come out of a nucleus the atom must be a large radioactive element, meaning its so big its unstable and particles come off. the particles that are released is the radiation so the proton is called alpha radiation the energy is purely its high speed momentum. the energy of a proton coming of a nucleus is technically mechanical energy.
A proton is in an electric field and has an electric potential energy of 0.5 J What is the electric potential voltage that it experiences?
First off you know that when it says "Proton" you should know that its a Positive (+) Charged subatomic particle! Now You use the equation that says --> Volt = Electric Potential Energy / Q Volt = 0.5 / +1 (proton) Volt = 0.5
What are the four types of potential energy?
Potential stands for the position. Hence potential energy is due to the position. Gravitational, electric potential, magnetic potential, elastic potential. If the energy is possessed during the motion it is said to be kinetic. So if a moving proton approaches a positively charged nucleus then it has to stand for an instant due to electrostatic repulsion. In that still position, the whole KE will be available as electrostatic potential energy.
Proton and an alpha particle are released from rest when they are 0.225 apart. The alpha particle has four times the mass and two times the charge of a proton. What is the max speed of the proton?
From energy conservation set the initial electric potential energy = to the electrical potential energy at an arbitrary separation (as they fly apart) + the kinetic energy of each particle. Next write alpha velocity in terms of proton velocity by requiring momentum conservation (total momentum is always zero because they started from rest). Next solve for proton velocity. By inspection see that the max will occur when the arbitrary separation distance ,used above, is infinite. This should give you an equation for max proton velocity in terms of proton mass & charge & initial separation & Coulomb constant. PS: If the proton speed is close to the speed of light you would have to solve the problem relativistically,to get a correct answer, but should still be doable using conservation of energy & momentum.
When A proton initially at rest falls through a p.d of 25000v .what speed does it gain?
The kinetic energy gained by the proton is equal to the work done on it by the electric field. Using the equation for work, you can find the final velocity of the proton. Given the potential difference (voltage) of 25000 V, you can calculate the speed gained by the proton.
How much work does the electric field do in moving a proton from a point with a potential of plus 140 V to a point where it is -80 V?
Work = (Charge)x(Voltage change). The Charge on a proton is +e. The change in voltage is (-80 V - 140 V) = -220V. So it is -220 eV. It is negative, because the proton has moved to a lower potential, and therefore gave up energy to the field.
Where do electrons that flow through the two photosystems have their highest potential energy?
The electrons that flow through the two photosystems in the light-dependent reactions of photosynthesis have their highest potential energy at the beginning, when they are excited by sunlight and enter the electron transport chain. This potential energy is used to create a proton gradient across the thylakoid membrane, which is then harnessed to produce ATP through ATP synthase.
Why is energy released in the proton-proton chain reaction?
Energy is released in the proton-proton chain reaction because when protons combine to form helium nuclei, a small amount of mass is converted into energy according to Einstein's famous equation, Emc2. This energy is released in the form of gamma rays and neutrinos.
