Choose the correct order of words that will make the following statement true. In a river,
occurs when sediment is transported and ___ occurs at the mouth in the formation of a delta.

a)deposition, erosion

b)erosion, deposition

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?