Me asap.
what happens when a penny is dropped from a height of 20 meters?
its mass doubles for every second it falls.
the force of gravity causes it to accelerate.
it changes direction every 9.8 meters.
it falls at a constant velocity.

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

What element is able to combine with itself and hydrogen to form large molecules ?