When traveling through air, a spherical drop of blood with diameter d maintains its spherical shape until hitting a flat surface. The direction of travel of the drop of blood dictates the directionality of the blood splatter on the surface. For this reason, the diameter of the blood drop is equal to the width of the blood splatter on the surface. The angle at which a spherical drop of blood is deposited on a surface, called angle of impact, is related to the width w and the lengthl of the splatter by sin® = ". Top view Side view Drop Blood Direction of drop travel Blood splatter Forensic Science. If a drop of blood found at a crime scene has a width of 8 millimeters and length of 16 millimeters, find the angle ) that represents the directionality.

A ship sails 50 mi on a bearing of B = 20° and then 30 mi further on a bearing of B = 80°. Find the resultant displacement vector as a distance and bearing.

The minute hand of a wall clock measures 24 cm from its tip to the axis about which it rotates. The magnitude and angle of the displacement vector of the tip are to be determined for three time intervals. What are the magnitude and angle from a quarter after the hour to half past, the magnitude and angle for the next half hour, and the magnitude and angle for the hour after that? (Use a coordinate system with the origin at the clock center, +x rightward toward the "3:00" position, and +y upward toward the "12:00" position.) (a) the magnitude from a quarter after the hour to half past cm(b) the angle from a quarter after the hour to half past ° (counterclockwise from the +x-axis)(c) the magnitude for the next half hour cm(d) the angle for the half hour in part (c) ° (counterclockwise from the +x-axis)(e) the magnitude for the hour after that cm(f) What is the angle for the hour in part (e) ° (counterclockwise from the +x-axis)