Activity 6: Calculating acceleration 1. A train travelling at 20 m s-¹ accelerates at 0,5 m s-² for 30 s.
How far will it travel in this time?
2. A car is stationary at first. It moves off with an acceleration of 2 m s-²
a) How fast will it be moving after 10 s?
b) How far will it move in 10 s?
c) How long will it take to reach a velocity of 24 m s-¹?
3. A train accelerates steadily from 4 m s-¹ to 20 m s-¹ in 100 s.
a) What is its acceleration?
b) From its initial and final velocities, calculate its
average velocity
How far will it travel in this time?​

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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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