Light (and radio waves) travels through empty space at approximately 3.0 x 10^8 meters per second. A light year is defined as the distance light travels in one year. How many meters is a light year? How
many miles is a light year? (1 mile = 1610 meters)

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?