Afriend on skis stands still on level ground, with dry 0.00°c with a coefficient of static friction of 0.0300. how hard would you have to push your friend in the forward horizontal direction to move him if your friend weighs 685 n?

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?

The ph is the a.independent variable b.the dependent variable c.control group