Which statement about the effect of sunlight on the earth is true? a. sunlight warms the earth unevenly. b. sunlight warms the poles more than the equator. c. sunlight warms the earth evenly. d. the coriolis effect does not distribute heat.

What are the factors that affect the resistance of a wire?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?