The orbits of planets being elliptical was one the planetary laws developed by

A. Copernicus.

B. Ptolemy.

C. Kepler.

D. Brahe.

Waves on a pond are an example of which kind of wave? a. sound b. surface c. deep water d. non-mechanical

Choose the statement about Masters sports programs that is true. A. Masters programs allow adults to both exercise and socialize with people who share their love of a sport. B.

What was the acceleration of the 2 kg cart. What was the acceleration of the 4 kg cart. What was the acceleration of the 6 kg cart

A stack of 55 business cards is 1.85 cm tall. Use this information to determine the thickness of one business card.

Circuit has a single pathway for the electrons of flow. series parallel

A star has a mass of 1.36 x 1030 kg and is moving in a circular orbit about the center of its galaxy. the radius of the orbit is 2.1 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.1 x 10-15 rad/s.

Floating in deep space, you find yourself at rest next to a small asteroid. You reach out and tap the asteroid with a hammer. What happens to you in this process?

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slows down and walks forward at 1.0 m/s for the next 4s. Make a distance-time graph of your motion and your friend's motion.

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i. e, what is the motion's frequency?