A Hertzsprung-Russell diagram is shown below Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?

A) Main sequence stars

B) Giants

C) White dwarfs

D) Supergiants

a.) is the correct answer.

explanation:

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2