If a chemical is spilled on the floor of a lab, what is the safest way to determine if it is an acid? a. determine if it dissolves metal b. taste a small amount c. inhale deeply d. use litmus paper

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.