The maximum angle of an incline for a m=2kg mass to remain at rest is 40 degrees. What is the normal force?

You can use trigonometry, and free body diagrams to find that Fn = 15.2 N.

How do you write a good thesis statement?

A powerful thesis statement should be succinct and be able to be proved by the rest of your paper.

A piece of coral is growing in the pacific Ocean at a rate of 3 pounds per year. How long will it take for the coral to gain 24 ounces?

It will take 0.5 years for the coral to gain 24 ounces!