Question 7 (2 points) Rachel performed an experiment testing the hours students slept with their
performance on a test. In this experiment, the hours that they slept was the variable, while the grade they got on
the test was the
variable.

Which form of pure carbon is so hard that it can be used in cutting tools?

Why does an object have a different weight o the moon than it does on earth

Ascientist is working with a new kind of quantum dot to make a dye. he is applying newton’s laws to the particle, but it seems to be breaking these laws of physics. which action will most likely the scientist study the particle’s motion? a. he needs to remember that the particle is too large for quantum analysis. b. he must continue to use newtonian mechanics, but he needs to learn more about the particle. c. he needs to use quantum mechanics, not newtonian mechanics, because this is a nanotechnology product. d. he must determine new physical laws that only apply to quantum dots.