Acopper pipe with an outer radius of 0.015 m runs from an outdoor wall faucet into the interior of a house. the temperature of the faucet is 4.1°c, and the temperature of the pipe, 3.0 m from the faucet, is 25°c. in fifteen minutes, the pipe conducts a total of 270 j of heat to the outdoor faucet from the house interior. find the inner radius of the pipe. ignore any water inside the pipe.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

7. see worksheet 1 for values of variables x1, x2 and x3 and answer the following questions: a. for each variable find the mean, median, coefficient of skewness, range and population standard deviation. b. compared to variable x1, how are the mean and median affected by extreme values (outliers) seen in x2 and x3. c. is the median or mean the better measure of location for x2 and x3? explain. d. explain the differences in the magnitudes of the skewness coefficients for the three variables. e. what is the relationship between the range and standard deviation looking across the three variables?

Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?