Afan acquires a speed of 180 rpm in 4s, starting from rest. calculate the speed of the fan at the end of the 5th second starting from rest. assume angular acceleration to be uniform

225 rpm

Explanation:

The angular acceleration of the fan is given by:

where

is the final angular speed

is the initial angular speed

is the time interval

For the fan in this problem,

Substituting,

Now we can find the angular speed of the fan at the end of the 5th second, so after t = 5 s. It is given by:

where

Substituting,

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.

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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