If the frequency of one tuning for is 220 Hz and playing the tuning fork and the guitar string produce a beat frequency of 3 Hz, what are the possible frequencies of the guitar string?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47