Pls 15 points light ray 1 strikes the smooth surface of a mirror as shown below. which of the following is the reflected ray for ray 1? ray 2 ray 3 ray 4 ray 5

Which pattern most likely came from a gunshot and which one was produced from a blow on the head? explain your answer?

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis