You and a friend each drive 50 km to the same destination. You travel at 88.5 km/h and your friend at 94.5 km/h. How long will your friend wait for you at the end of the trip

your friend will wait for you for 2.2 minutes.

Explanation:

Given;

Distance of the journey, d = 50 km

your speed, v₁ = 88.5 km/h

your friends speed, v₂ = 94.5 km/h

The time taken before you reached the end of the trip;

The time taken before your friend reached the end of the trip;

The difference in time = (0.565 - 0.529) hour

                                     = 0.036 hour

                                     = 0.036 x 60 min

                                     = 2.2 mins

Therefore, your friend will wait for you for 2.2 minutes.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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