Some of the following statements concerning transformers are false. check all the false statements. a transformer can function with either an ac current source or a steady dc current source. a transformer that steps up the voltage, also steps up the current. transformers are an application of faraday's and lenz's laws. a transformer that steps up the voltage, steps down the current. among the two coils in a transformer, the coil with more turns has the larger voltage. among the two coils in a transformer, the coil with more turns has the larger current.

How does an observation about an object differ from an inference about that object

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?

By what primary heat transfer mechanism does the sun warm the earth?