In the phenomenon known as the photoelectric effect, electric current will flow when light shines on certain substances.

1. The natural laws include the law of ___ A. speed limits. B. gravity. C. railroad crossings. D. yielding. 2. Which of the following should determine whether you need to speed up or slow down? A. how quickly you need to get somewhere B.

Bacteria which are able to live in extreme conditions are found in this kingdom

sunil takes 10 minutes to walk from his house to school. if his average speed of walking is 4 km/h, calculate the distance between his school and his house.

In countries where there is very hot and very cold weather, should the gaps between the lengths of railway track be wider or narrower?

What do radio waves and microwaves have in Common? A both are at the ideological the spectrum that has the lowest frequency B both are at the spectrum that has the shortest wavelengths C both have higher frequencies than visible light

How does the tilt of Earth's axis affect how the sun's rays strike Earth?

A stone is tied to s string and whirled around in a circle at constant speed. Is the string more likely to break when the circle is horizontal or when it is vertical? Account for your answer, assuming the constant speed is the same.

Two blocks, stacked one on top of the other, slide on a frictionless horizontal surface. The surface between the two blocks is rough, however, with a coefficient of static friction equal to 0.50. The top block has a mass of 2.

Process by which water vapor changes to a liquid Evaporation Condensation Convection radiation

Part A Find the energy U0 stored in the capacitor. Express your answer in terms of A, d, V, and ϵ0. Remember to enter ϵ0 as epsilon_0.