You are the science officer on a visit to a distant solar system. prior to landing on a planet you measure its diameter to be 1.8 * 107 m and its rotation period to be 22.3 hours. you have previously determined that the planet orbits 2.2 * 1011 m from its star with a period of 402 earth days. once on the surface you find that the free-fall acceleration is 12.2 m/s2. what is the mass of (a) the planet and (b) the star?

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Answer59.2kg; /

How are period and frequency related to each other? dperiod is the reciprocal of frequency.