The internal resistances of two cells shown are 0.10 and 0.30. If R=0.20, the potential difference across the cell
27, 0.10
27, 0.30

(a)B will be zero
(b)A will be zero
(c)A and B will be 2V
d)4 will be > 21 and B will be <2V

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?