Use this scenario to answer the following questions: A 909 kg car is heading east on highway 126 at 15 m/s. Another 909 kg car is heading west on highway
126 at 30 m/s. Unfortunately, the second car is driving on the wrong side of the
road and the two vehicles are involved in an inelastic collision.
4. What is the momentum of car #1 before the accident?

5. What is the momentum of car #2 before the accident?

6. What is the total initial momentum before the accident?

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Explain what will happen if decomposers were apsent from a forest ecoysystem.

What is an example of static friction

I) a gas contained within a piston-cylinder assembly undergoes two processes, a and b, between the same end states, 1 and 2, where p1 = 10 bar, v1 = 0.1 m3 , u1 = 400 kj and p2 = 1 bar, v2 = 1.0 m3 , u2 = 200 kj: ' process a: process from 1 to 2 during which the pressure-volume relation is pv = constant. ' process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2. kinetic and potential energy effects can be ignored. for each of the processes a and b, a) sketch the process on a p-v diagram. b) evaluate the work, in kj. c) evaluate the heat transfer, in kj.(ans : qb,12 = -65.0 kj)