An elephant was standing on a bridge. The mass of the elephant was 5,000 kilograms. (That is about ½ a ton.) If the gravitational acceleration for the elephant was about 10 m/s2, how much force did the bridge need to apply to the elephant so it wouldn't fall?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

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?

Determine the largest intensity w of the uniform loading that can be applied to the frame without causing either the average normal stress or the average shear stress at section b–b to exceed σ=19 mpa and τ=24 mpa, respectively.