If the atomic number of an element is 8 and its mass number is 20, how many neutrons are in the atom's nucleus?

A 0.400 kg bead slides on a straight frictionless wire and moves with a velocity of 3.50 cm/s to the right, as shown below. The bead collides elastically with a larger 0.600 kg bead that is initially at rest.

G a surface is so constructed that the electric flux across the surface is zero. therefore, according to gauss's law, it can be said that the surface:

Part of the solar radiation entering the atmosphere about ___ actually reaches the earth's surface

Which ocean had the greatest average depth

For the winter, a duck flies 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s. What is the resultant velocity of the duck?

If a recipe says to bake a pizza in 250 degrees Celsius at what temperature should you set your temperature that uses Fahrenheit scale

A German scientist, George Ohm, discovered the relationship between current, voltage, and resistance. This became known as Ohm's law.

The amount of fluid displaced by a submerged object depends on its

What kinds of space and matter can light travel through?

A capacitor is connected to a power source and begins charging. What causes the capacitor to stop charging while it is still connected to the power source?