Which action involves the most efficient conversion of electrical energy into thermal energy?
A
a light bulb turning on inside an oven

B
a dishwasher rinsing dirty dishes with cold water

C
an electric mixer spinning to mix ingredients

D
an oven coil heating up to bake a cake

What is the angular momentum of the bar about the axle?

Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?

Find an expression for the electric field e⃗ at the center of the semicircle. hint: a small piece of arc length δs spans a small angle δθ=δs /r, where r is the radius. express your answer in terms of the variables q, l, unit vectors i^, j^, and appropriate constants.