A jogger runs 300 meters due east and then turns and runs 500 meters due west. a. What is the total distance that she ran?
800 m
BUT HAT IS B?!
b. What is her total displacement (magnitude and direction)?

Agardener uses a wheelbarrow to move soil from a truck to his garden. on the first trip from the truck to the garden, the wheelbarrow is half-full of soil and the gardener applies a certain force to cause it to accelerate. on the second trip, the wheelbarrow is full of soil. although the gardener applies the same amount of force to the wheelbarrow, he cannot move it with the same rate of acceleration. what should the gardener do to move the wheelbarrow at the same rate of acceleration for the second trip?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

The necleus of an atom is made up of what subatomic particles?