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... Pem = 2 = µ0ε 0 S = ε 0 E × B . c According to Newton’s rule, the electromagnetic fields should carry angular momentum r r r r r r lem = r × Pem = ε 0 r × E × B . z Example: Imagine a very long solenoid with radius R, n solenoid turns per unit length, and current I. Coaxial with the solenoid are two ...
... Pem = 2 = µ0ε 0 S = ε 0 E × B . c According to Newton’s rule, the electromagnetic fields should carry angular momentum r r r r r r lem = r × Pem = ε 0 r × E × B . z Example: Imagine a very long solenoid with radius R, n solenoid turns per unit length, and current I. Coaxial with the solenoid are two ...
When you get stuck: Think
... Under what conditions is work positive and negative? Under what conditions is heat positive and negative? What is the net work done by an entire process? What is the second law of thermodynamics? Describe the relationship between QH, Qc, and W in a heat engine? What is the difference between a heat ...
... Under what conditions is work positive and negative? Under what conditions is heat positive and negative? What is the net work done by an entire process? What is the second law of thermodynamics? Describe the relationship between QH, Qc, and W in a heat engine? What is the difference between a heat ...
Woodward effect
The Woodward effect, also referred to as a Mach effect, one of at least three predicted Mach effects, is part of a hypothesis proposed by James F. Woodward in 1990.The hypothesis states that transient mass fluctuations arise in any object that absorbs internal energy while undergoing a proper acceleration. Harnessing this effect could generate a thrust, which Woodward and others claim to measure in various experiments. If proven to exist, the Woodward effect could be used in the design of spacecraft engines of a field propulsion engine that would not have to expel matter to accelerate. Such an engine, called a Mach effect thruster (MET), would be a breakthrough in space travel. So far, no conclusive proof of the existence of this effect has been presented. Experiments to confirm and utilize this effect by Woodward and others continue.