Recent content by Shelby8

Homework Statement An office worker uses an immersion heater to warm 250 g of water in a light, covered, insulated cup from 20 degrees C to 100 degrees C in 4 minutes. The heater is Nichrome resistance wire connected to 120V power supply. Assume wire is at 100 degree C during 4 minute time...

Oh the weight is moving down so the down is positive. So rewrite it like: a = (mg - T) / m = αr

The mg should act down while the T acts toward the side, I see how I drew that wrong. Am I missing other forces for the flywheel though? If the wheel turns with theta, like if it turns one rotation (2 pi) then the weight moves the same distance as the circumference of the flywheel? (2 pi r)...

Homework Statement Assume no friction for 1 - 6 1. Draw a free body diagram of the fly wheel (from above), and a free body diagram of the weight (from side). 2. What force appears in both diagrams? 3. What is the relationship between the torque on the flywheel and the tension in the string...