Compare and contrast xylem and phloem.

The amount of work done depends on what two things

The force of gravity typically acts in a downward direction on the object on earth when an object is standing still, on the flat ground, in what direction does the support or normal force act?

Why do planetary scientists hypothesize that the moon formed with a molten surface

At what distance above the surface of the earth is the acceleration due to the earth's gravity 0.785 m/s2 if the acceleration due to gravity at the surface has magnitude 9.80m/s2?

Once a falling object has reached a constant velocity, the object ___. a. stops accelerating b. stops speeding up c. experiences equal forces of gravity and air resistance d. all of the above

Which of the following substances will show the smallest change in temperature when equal amounts of energy are absorbed? water air sand concrete

The downward acceleration of a falling body on Earth is 9.81m/s2. On the moon the same quantity is 1.62m/s2. An astronaut in a space suit has a mass of 145kg.

Explain how a guitar produces sound by using the terms standing waves and resonance.

Why can only igneous rock be formed directly from magma?

Streamlined objects are smooth and?