The speed of light is 2.998*10^8 m/s. how long does it take light to travel 40 cm ?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?