Q. Consider the circuit supplied by one battery of emf ε = 18V. (2-a) Find the equivalent resistance outside the battery (so-called "Load Resistance")? (2-b) Find the current and the voltage across each resistor?
Q. Fairgoers ride a Ferris wheel with a radius of 4.35 m, the bottom of which is 1.75 m from the ground. The wheel completes one revolution every 30.0 s. A passenger drops his keys when he is three quarters of the way up and at the 10 o'clock position. Where do the keys land relative to the base of the ride? (Take the positive direction to be to the right. Note that the dashed line is not accurate for this situation.)