Atrain moving with an initial velocity of 20 m/s accelerated at 4 m/s^2 for 10 seconds. during this time, the train moves a distance of how many meters

400 m

Explanation:

Given:

v₀ = 20 m/s

a = 4 m/s²

t = 10 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (20 m/s) (10 s) + ½ (4 m/s²) (10 s)²

Δx = 400 m

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.