![]() More energetic, shorter-wavelength "extreme" UV below 121 nm ionizes air so strongly that it is absorbed before it reaches the ground. The amount of UV light produced by the Sun means that the Earth would not be able to sustain life on dry land if most of that light were not filtered out by the atmosphere. For humans, suntan and sunburn are familiar effects of exposure of the skin to UV light, along with an increased risk of skin cancer. Short-wave ultraviolet light damages DNA and sterilizes surfaces with which it comes into contact. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionize atoms, it can cause chemical reactions and causes many substances to glow or fluoresce. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. Ultraviolet ( UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. Arc welders must wear eye protection and cover their skin to prevent photokeratitis and serious sunburn. So this is the magnitude and again we say that the direction is appointment.UV radiation is also produced by electric arcs. So solving this gives us the mag magnitude of the electric bill in Newton break columbus 2.03 Times 10 to the -7 neutron per column. ![]() No, we have Take to simply take the ratio of 6.50 7, 2 times 10 to the negative 26 Divided by 3.204 Times 10 to the -19. So that means you have your cue To be equal to three 204 times 10 to the -9 columns is the charge. ![]() stands for the Fundamental Charge, which value is 1.602 times 10 to the negative 19. So that the weight is equal to 6.507, 2 Times 10 to the negative 26 neutrons. We take the acceleration due to gravity to be equal to 9.8. So that's going to be 6.624 times 10 to the negative 27 Times. The software that as the product of the mass and the acceleration due to gravity. So since the force here is enough to support the weight. So, from the formula you have that as the ratio of course, and the charge. Now let's solve for a d magnitude of the electric field. So we have already established the electric field direction, which again here is going up. So that means if the charge were negative in this case, the electric field should be going down. If the charge was negative, then the electric field direction is opposite to the direction of the electric voice. So your electric bill and should also be coming up. Now, since the charge is positive then by convention, the direction of the electric field is the same as the direction of the electric voice. And if the if this weight is to be balanced, then there must be an electric force that is acting uh that is acting upward in order to balance the weight. So we have forces acting on it, namely the weight which is acting downward. We wish to find the magnitude and the direction of the electric bill that will be able to counter the counterbalance the gravitational force on the particle. Is the magnitude of the charge in this problem, we have an alpha particle That has a mass of 6.64 times 10 to the -27 kg. ![]() Is the magnitude of the electric force, and Q. Where P is the magnitude of the electric field F. The magnitude of the electric field due to a point charge is solved as E equals leftover over Q.
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