How much time does it take light from a flash camera to reach a subject 6.0 meters across a room in scientific notation?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.