Saturn orbits the Sun at a distance of 1.43 *10^12 m. The mass of the Sun is 1.99 * 10^30 kg.
Use (equation in picture) to determine Saturn's orbital period in Earth years.
Gm
29.6 Earth years
296 Earth years
874 Earth years

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false