The main difference between absolute and apparent magnitude is that apparent magnitude measures the observed brightness of an object from any point, whereas absolute magnitude calculates the brightness of the object as seen from a standard distance away from the object.
Answer:
266. 4
Explanation:
acceleration due to vravity on earth is 10m/s.
One third of it is (1/3)*10
=3.333m/s.
Weight is mass × acceleration
weight= 80kg÷ 3.333m/s
W= 266.4 Newton.
The direction of centripetal force when applied to an object is perpendicular to the object's motion.
Centripetal force, or even net force, will always be in the direction of acceleration. For example, the earth is always accelerating towards the sun. The acceleration vector for planet earth is always in the direction of the sun and the velocity is perpendicular to that, hence why we are not getting closer to the sun. Hope this helps.