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If A heat engine does 158,000 J of work and gives out 189,000 J of heat to the cold temperature reservoir. The hot and cold temperatures the engine operates at are 382°C and -20° C.
What would the ideal (Carnot) efficiency be? Also what would then be the actual efficiency?
The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 10.0 m, C =14.0 m, and D = 25.0 m. Determine the (a)magnitude and (b) direction for the resultant that occurs when these vectors are added together.
Calculate the net power (MW) delivered to the generator by the turbine
What is the total charge of the radon nucleus? (The neutral radon atom has 86electrons.) What is the magnitude of the forceon an electron at a distance of 2.36 Angstrom from the radonnucleus?
In Stop-and-Wait ARQ why should the receiver always send an acknowledgment message each time it receives a frame with the wrong sequence number?
Consider an alternating current of the form i(t) sin(2pit), where t is the time elapsed measured in seconds. (a) at what times is the magnitude of the current largest? (b) if this current were applied to a resistor, at what times would the magnitude ..
what is the electric field magnitude at the point40 due to a charge at the origin 00? what is the magnitude of the
Light of wavelength 650nm falls on a slit that is 3.90x10-3mm wide. How far the first bright diffraction fringe is from the strong central maximum if the screen is 12.5m away. Express your answer to three significant figures and include the appropria..
Two charged particles move in the similar direction with respect to the same magnetic field. Obtain the ratio of the magnitudes of the charges
The front, convex, surface of a lens made for eyeglasses has a radius of curvature of 12.4cm, and the back, concave, Calculate the focal length of the lens
find the magnitude of the force experienced by the negative charge. The value of Coulomb's constant is 8.98755 × 109 N · m2/C2. Answer in units of N
As liquid water freezes
The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, which orbits a rather average star in the distant Garbanzo Galaxy.
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