You and a friend each carry identical boxes from the first floor of a building to a room located on the second floor, farther down the hall. you choose to carry the box first up the stairs, and then down the hall to the room. your friend carries it down the hall on the first floor, then up a different stairwell to the second floor. how do the amounts of work done by the two of you on your boxes compare? '

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.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?