Draw magnetic field (b field) line diagrams for the following. make sure the diagrams are large enough so the direction and shape of the magnetic field is very clear. include magnetic field lines that are far from their sources. a. a bar magnet (be sure to label the north and south pole). b. a horseshoe magnet (be sure to label the north and south pole). c. a long straight wire with an electric current in it (be sure to label the direction of the current).

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's