The pH scale is actually measuring the concentration of H+ ions in a solution. If there is a high concentration of H+ ions, then the pH of the solution will be

A. neutral
B. low
C. none of the above
D. high

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Aforce of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. what is the force acting on the object in the horizontal direction?

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?