3. A 45,000 kg rocket is at rest lying on the ground pointing westward. The rocket engines are touching a 2,300 kg mobile cart that is also at rest pointing in the other direction. When the rocket engines fire an impulse is
produced from 840,000 N of force for a period of 1.3 seconds.
a. Solve for the impulse (J = Fxt). This is also the change in momentum.
b. What is the final speed of the rocket? [ Ap = m(vp-v) ]
C. What is the final speed of the cart? (both the rocket and the cart have the same change in momentum)

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

80cm/s.

24cm/s.

53.3cm/s.