In general, Single celled organisms that use false arms to move cannot survive in dry environments, Such as deserts why My teacher gave us this question along with 20 others and we just started the subject and its due today this is the only question I don't know

Which of the following is an example of motion in two dimensions?

Which composition of water moves to begin a deepwater current?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?