Which subatomic particle can be absent from an atom?

a. neutron

b. electron

c. proton

d. quark

If the force of friction resisting the students push is 4 N what is the net force acting on the board if the student is applying 10 N of force?

Which of the following gases are typically used for colorful lighting when an electric current is apllied

What is the distance from the crest to the equilibrium of a wave called?

What would be the effect of doubling the rate of star formation, R*, on the results of the Drake equation? Drake equation: N = R * * ƒp * ne * ƒl * ƒi * ƒc * L A. There would be no difference in the results. B.

Which of the following statements is a consequence of the equation E = mc2? A Energy is released when matter is destroyed. B Mass and energy are equivalent.

Give a sentence with the word velocity in it

Which description matches up correctly with each type of particle? Alpha - no mass and no charge; beta - mass of 4 and charge of + 2; gamma - charge of - 1 and mass of 0 Alpha - mass of 0 and charge of - 1; beta - mass of 4 and charge of + 2;

Describe the factors that form deep currents

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?