The mass of the earth is about 6x1024 kg and its radius is about 6x106 meters. suppose you build a runway along the equator, line-up a million f-16's, bolt them down, and have them all fire their engines (eastward) simultaneously for 1/2 hour. estimate the effect that would have on the rotational speed of the earth. assume the thrust of each plane's engines is 30,000 lbs = 133,000 newtons.

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value