Answer:
Stars that have lower apparent magnitudes have more brightness.
Explanation:
Greek astronomer Hipparchus devised a system of arranging the luminosity of stars with their apparent magnitude. The brightest stars were in the first magnitude class, and the dimmer stars were in the latter magnitude classes.
Later in the 19th century technology had developed to accurately measure a star's brightness. It was established that a factor of exactly 100 times in intensity was due to difference of 5 magnitudes.
Basically it is the difference in velocity divided by the time it takes to make that change.
Three points affecting are :
a. Magnitude of force.
b. Distance of point of contact.
c. Angle at which force is applied.
The answer is a. 0.14 kg
PE = mgh
116.62 = m•(9.8)•(85)
m = 116.62/(9.8•85)
= 0.14 kg