Sun orbits at roughly 26,000 ly from the center of the galaxy and takes 225 million years to make one orbit. i: at what speed does sun revolve around the center of the galaxy? (give your answer in km/s; show all work.) ii: what is the circumference of sun's orbit if we consider its orbit to be circular? iii: what is the mass of the galaxy within sun's orbit?

From the perspective of an employee that effective channeling of work related information and concerns

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

Which of these is the best way to manage a natural resource