An air-standard dual cycle has a compression ratio of 9. at the beginning of compression the pressure is 100 kpa, the temperature is 300k while the volume is 14 liters. the heat addition is 22.7 kj, with one-half added at constant volume and one-half added at constant pressure. using exact analysis determine; a) sketch the cycle on a p - v and t- s diagrams b) the temperatures at the end of each heat addition process, in k c) the net work of the cycle, per unit mass of air, in kj/kg. d) the thermal efficiency. e) the mean effective pressure, in kpa.

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)