At a distance of 7.00 * 1012 m from a star, the intensity of the radiation from the star is 15.4 W>m2 . Assuming that the star radiates uniformly in all directions, what is the total power output of the star?
Chapter 21 Electric Charge and Electric Field Electric charge is measured in coulombs (C), and an electron has a charge of 1.6 x 10 C 19 Electric force is the force between charged particles (ex. a proton and an electron) Electric force is another force to know in addition to Normal force, Static and Kinetic Friction force, Gravity force, Tension force, and Buoyancy force all from Physics 1 The magnitude of force on q (a cha1ge particle) by q (another c2arged particle = the magnitude of force on q b2 q 1 The direction of the force depends on the sign of charge (positives retracting, negatives retracting, and opposite charges attracting) Coulomb’s Law F = kq q /r 2 e12 1 2
