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.

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d