Draw a free body diagram for each of these scenarios which are set on an airless earth. (draw the free body diagram of the object written in all capitals.) (a) a person in an elevator that is accelerating upward. (b) a person in an elevator that is accelerating downward. (c) a person who is hanging motionless on a rope. (d) a person who is climbing at constant speed up a rope.

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

How would a small bar magnet be oriented when placed at position x?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors