Two long parallel wires each carry a current of 5.0 a directed to the east. the two wires are separated by 8.0 cm. what is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.