SCIENCE
Which of the following statements are characteristics of magnetic fields? SELECT ALL THAT APPLY
A. If a bar magnet is cut in half two magnets with like poles will be created. The north pole of a magnet will be attracted to the south pole of the earth.
B. The earth’s magnetic field has no effect on the electron rays coming from the sun.
C. Magnetic fields point from the north pole to the south pole of a magnet.
D. An example of the Biot-Savart law is the effect of the earth’s magnetic field on the electron rays coming from the sun.

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

If a star is moving toward earth, it is

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?