13. The speed of light in a perfect vacuum is 300,000,000 m/s. How long does it take light to travel 149,000,000,000-m distance from the sun to the Earth, in minutes?

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy