7. A solenoid with ends marked A and B is suspended by a thread so that the core can rotate in the horizontal
plane. A current is maintained in the coil so that the
electrons move clockwise when viewed from end A
toward end B. How will the coil align itself in Earth's
magnetic field?

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.