Total internal reflection occurs only if

what will happen to the brightness of the other bulbs in a series circuit if any of the bulbs were to burn out?

If an object is accelerating, then the forces acting on it must be: A. zero. B. balanced. C. unbalanced. D. increasing.

What is an example of cultural change due to technology? A. More people walking from work because of exercise benefits B. More minorities running for public office C. More children going to public schools D.

At a temperature of 273 k, the syringe contains 11.0 cm3 of air. how many moles of air are in the syringe?

7. A locomotive is pulling 19 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car (with its load) is 37,000 kg. If the train is accelerating at 0.

How long does it take for light to travel from the sun to earth?

Two very small spheres are initially neutral and separated by a distance of 0.30 m. Suppose that 2.50 1013 electrons are removed from one sphere and placed on the other. (a) What is the magnitude of the electrostatic force that acts on each sphere?

Why is it important to balance a chemical equation? A. It is not important to balance a chemical equal B. To make sure you have the correct products C. To make sure you have the correct reactants D. To obey the law of conservation of mass

The presence of icicles hanging off the eaves of a wood-framed structure is most likely due to: heavy snow followed by a thaw. improper insulation in wall cavities. use of a poor-quality roof sheathing material. lack of proper roof ventilation.

Both gravitational potential energy and kinetic energy depend on