The earth orbits the sun with the speed of about 3000m-¹ at a distance of 1.5×10¹¹m from the center of the sun. if the mass of the earth is 6.0×10²4 kg calculate the a. angular velocity
b. centripetal force

What if you were not responsible for planning the menu, and you noticed that the portions provided were often very large? what resource(s) could you use to understand the appropriate portion sizes for children? a. national and state health standards b. cooking course c. ask parents d. ask the school nurse and guidance counselor