14. ***A gas inside a cylinder expands from 4.2 L to 8.7 L at a constant pressure of 5.1 x 10^3 Pa. What work is involved in this process? REMEMBER! You must convert L to m^3!!! 1 L = 0.001 m^3. Please help me with this question ;O;

this means that the temperature of both substances will be equal

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.