Electrons in projection television sets are acceler- ated through a total potential difference of 50,000 V. a. Calculate the speed of the electrons using the relativistic form of kinetic energy assuming the electrons start from rest.
b. Calculate the speed of the electrons using the classical form of kinetic energy.
c. Is the difference in speed signiï¬cant in the design of this set in your opinion?

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

Me with this and you will be marked brainliest