Kepler's investigations of the movement of the planets explained which of the following?

The planet Mars has much less gravitational force than Earth. What would happen if you went to Mars? A. Your mass would increase. B. Your weight would increase. C. Your mass would decrease. D. Your weight would decrease.

the wires inside a cable each have there own plastic insulation. why does the insulasion have diffrent colours

4) What is the speed of a bike if it moves 50 meters in 5 seconds?

A golf ball is hit with an angle of elevation 60∘60∘ and speed 25ft/s25ft/s. Find the horizontal and vertical components of the velocity vector. (Your answer must be exact)

What are the visible and invisible forms of moisture in the air?

What does electricity depend on to make electrons move? A:a source and the attraction to opposite charges B: Only source C:Only attraction of opposite charges

If two parallel light rays hit a plane mirror, what will be their orientation to one another after they reflect? a. they will remain parallel. b. they will be perpendicular. c. it depends on the initial spacing between the light rays. d.

To extend the electrical system between the main panel and the secondary panel, the electricians used A. Receptacles B. Circuit breakers. C. feeders. D. insulators

Men in the age of 18-34 years need to be able to run a marathon in 3 hours and 10 minutes to qualify for the Boston Marathon. How many seconds is this? Show your work.

What is the center of our solar system?