7. A car, 1800kg, begins at 5m/s and accelerates up to 20m/s in 4 seconds. It then hits a wall and comes to rest in 0.4 seconds. Find a)the impulse and force on the car before it hits the wall b)the force and impulse on the car after it hits the wall

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

The big glowy thing is called the sun it is a star in our galaxy and is over 1 million degrees