Its 4 questions 1. Draw a series circuit with a 2-cell battery, 2 motors and an open switch.

2. Draw a parallel circuit with a 3-cell battery, 4 lamps and 1 closed switch that turns off all lamps.

3. Draw a circuit with a 3-cell battery, 2 motors (one motor on and one off).

4. Draw a circuit with a 2-cell battery, 2 lamps, 1 closed switch (wire it so if one lamp burns out, both lamps will not work).

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Dinate system, and a charge q = - 2.00 nc is placed s2 10 n> c. (a) what is the change in electric potential energy when the dipole moment of a molecule changes its orientation with respect to es from parallel to perpendicular? (b) at what absolute temperature t is the average translational kinetic energy 32 kt of a molecule equal to the change in potential energy calculated in part(: abovethistemperature, thermalagitationprevents the dipoles from aligning with the electric field.) placed in a uniform electric field e with magnitude 1.6 * 6 on the positive x-axis at x = 4.00 cm. (a) if a third charge q3 = +6.00 nc is now placed at the point x = 4.00 cm, y = 3.00 cm, find the x- and y-components of the total force exerted on this charge by the other two. (b) find the magnitude and direction of figure p21.62 ll uu 21.55 . torque on a dipole. an electric dipole with dipole moment ps is in a uniform external electric field es. (a) find the orientations of the dipole for which the torque on the dipole is zero. (b) which of the orientations in part (a) is stable, and which is unstable? (hint: consider a small rotation away from the equi- librium position and see what happens.) (c) show that for the stable orientation in part (b), the dipole’s own electric field tends to oppose the external field. 21.62 ..

The force it would take to accelerate an 900-kg car at the rate of 6m/s2