determine the maximum shear stress in the t-beam at the critical section where the internal shear force is maximum.

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

Explain why electric current cannot exist if a current doesn't have a voltage source.

During the past 150 years in the united states, how did energy consumption compare to population growth