The value of 3 38 5 is close to 2. Use Newton’s Method to find an estimate for 3 38 5 . a) Write the expression 3 38 5 x  in the form of an equation h(x) = 0. Thus you want to use Newton’s Method to find a root of h(x) near x = 2.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity

Why does lightning travel from clouds to the ground?