1. Name 2/6 things you can learn about a star by looking at its light in a telescope. 2. An infrared pictures that uses different colors to show variations in temperature in called a
3. If you know the wavelength of the color emitted by a dense object you know it's
4. Name the colors of the visible light spectrum in order from highest energy to lowest energy.​

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?