11 A student plans to measure the refractive index of glass. She traces a ray of light through a glass block as shown in the diagram

(b) Explain how the student can use the glass block to find an accurate value for the
refractive index of glass.
MacBook Air

28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou

Both independent and dependent clauses

Hi , i am new here can anyone me out with this question why is space black after having so many shining objects like sun , moon , stars