What is pH? (NEED ANSWER ASAP) A. how acidic a solution is
B. how basic a solution is
C. the concentration of potassium in a solution
D. the concentration of hydrogen ions is a solution

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?