Suppose you decide to travel to a star 70 light-years away at a speed that tells you the distance is only 20 light-years. how many years would it take you to make the trip?

What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer