A train travels at 100 km/h heading east to reach a town in 4 hours. The train then reversed ad heads west at 50 km/h for 4 hours

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

How is the gravitational force related to the distance between two objects?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.