A motorcyclist (m = 125 kg) is trying to leap across a canyon by driving horizontally off a cliff (height = 20 m) at a speed of 30 m/s. The cycle lands on a cliff on the other side (height = 10 m) at a speed of 22 m/s. Find the work done by air resistance.

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

Does heating a metal wire increase or decrease its electrical resistance? why?

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?