Athermal isolated container has a content of 2.00 l water at a temperature 50°c. the container has a small opening to the environment, so the pressure is constant 1.00 atm. a block of iron at the temperature tron and the mass no heat transfer between the iron block and the environment or the container during the transport or afterwards). when thermal equilibrium has been reached 10 % of the water mass has evaporated. 3.00 kg is then put into the container (there is calculate the temperature tiron of the iron block before it was put into the container. a)

prolly a beacuse the momentuem the car has increases while going down hill

small = small current large mag large current

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

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.