How many protons, neutrons, and electrons are there in an atom of potassium-39?

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Which of the following is true about the speed of light? it depends on the wavelength.