Consider two planets a and b. the mass of planet b is 0.012 times the mass of planet a and its radius is 0.3 times the radius of planet a. if the acceleration due to gravity at the planet a is 10 m/s2 , calculate the corresponding value at planet b.

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th