A source of sound is kept in a jar in a vacuum. Air is slowly introduced to the jar.

what happened to the sound coming out of the jar

A 9kg bowling ball rolls of a table and strikes the ground. If the ball is in the air for 0.5 sec, how fast is the ball moving when it hits the ground?

A computer technician always touches the metal body of a computer before touching any of its electrical parts. why?

What is one way to find the number of valence electrons in an element

Which properties are different ways to describe the information plotted on the x-axis? Group of answer choices A luminosity and absolute magnitude B spectral class and absolute magnitude C temperature and spectral class D temperature and luminosity

An ocean wave is an example of which type of energy?

Why is mass movement more common after a heavy rainfall?

Order the colors of the rainbow starting with the color that is bent the least to the color that is bent the most (when it passes through a prism). Question 1 options: yellow blue indigo orange green red violet

Find the unit vector that has the same direction as the vector v = _12j

Why isn't the size of something considered a physical property?

A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 1.