Asimple yet effective way to measure the speed of a bullet is to use a ballistic pendulum. a rifle bullet of mass 0.0378 kg collides with and embeds itself in a pendulum of mass 2.46 kg which is initially at rest and suspended vertically by a 2.30-m massless string, which swings through an angle of 48.6° to its highest point?

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?