In empty space, an object of mass 1 kg is moving along a straight line with a constant speed of 10 m/s. Hanging in space is a dust-mote of negligible mass. At a certain instant the object is 100 m from the dust-mote. However, as it continues along its path, it will pass within 1 m of the mote. What is the magnitude of the angular momentum of the object, as seen from the dustmote’s position?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Name three populations commonly found in a prairie system

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)