What is the sun's gravitinal pull force?

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b. they can have a lower impact on the environment. c. they can be used up rapidly. d. they can contribute to global warming.

If you perfer to learn by reading to yourself instead of participating in a group discussing, you are most likely an