The speed of light is 3.0 x 10 to the power of 8 m/s. The Andromeda Galaxy is approximately 2.4 x 10 to the power if 19 km away from the Milky Way Galaxy. How long does it take light to travel from Andromeda to the Milky Way?

Why do different substances have diffrent properties

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked