Adolf and Ed are wearing harnesses and are hanging at rest from the ceiling by means of ropes attached to them. Face to face, they push off against one another. Adolf has a mass of 130 kg, and Ed has a mass of 72 kg. Following the push, Adolf swings upward to a height of 0.75 m above his starting point. To what height above his own starting point does Ed rise?

2.45 m

Explanation:

We are given that

Height,h=0.75 m

Initial velocity,

We have to find the height above his own starting point Ed rises.

Initial kinetic energy of Ed=Final potential energy of Ed

According to law of conservation of momentum

Initial kinetic energy of adolf=Final potential energy of adolf

Substitute the values

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.