Given that the moon has a period of 27.32 days around earth and a radius of orbit which is 60 earth radii, what is the centripetal acceleration of the moon?

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

The substances that are necessary for producing of certain hormones and that store and transport vitamins

If anyone who can me with this hw? i would really appreciate it