Two tuning forks are played at the same time. One has a frequency of 176 Hz and the other is 178 Hz. How many beats per second are heard?

What formula can be used to calculate [H30+]?

You run to your girlfriends house announce that you were running a rate of 50 mph. She knows this is not true because she knows

A U. S. quarter (coin) is about 3cmindiameter. If you were to hold it upso that it was covering the full Moon, how far (in cm) must you hold it away from your face so that it would pretty much cover the Moon exactly?

Which of the following is an example of the absolute threshold? a. Dimitri turns down the shower because it is too hot. b. Sam recognizes that the restaurant lights have suddenly dimmed. c.

What is kinetic energy related to?

Objects become electrically charged as a result of the transfer of

How many electrons do most atoms seek to have on their valence shell? Using this information, explain why certain elements are unreactive and why other elements are reactive.

Which of the following statements is good advice to prevent becoming overly emotional? A. There is no way to prevent becoming overly emotional. B.

An ant is on the pendulum bob of a clock. What would be its displacement in one time period?

Every charged particle in the universe is surrounded by its own? A. both an electric and gravitational field B. Gravitational field C. Charged field D. Electric field E. Both and electric and charged field