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A Carnot engine is operated between two heat reservoirs at temperatures of 505 K and 300 K.
a. If the engine receives 6.55 kJ of heat energy from the reservoir at 505 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K ?
b. How much mechanical work is performed by the engine during each cycle?
c. What is the thermal efficiency of the engine?
An insect 1.1 tall is placed 1.3 beyond the focal point of the objective lens of a compound microscope. The objective lens has a focal length of 17 , Where is the image formed by the objective lens
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.69 m and 1.04 m, respectively. The respective rotational speeds are 452 rev/min and 4,140 rev/min. Calculate the speeds of the tips of both rotors
using momentum newtons first law of motion and or newtons second law of motion explain how a rocket is launched deep
A 80.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the firefighter's speed just before she collides with the platform
A proton is released from rest at x = -3.00 cm in a uniform electric field of magnitude 1620 N/C, What is the change in potential energy when the proton reaches x = 5.00 cm
A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius of 0.25 m and consists of 480 turns. find the magnitude of the average emf induced in the antenna
A block of wood has a mass of 3.77 kg and a density of 589 kg/m3. It is to be loaded withlead so that it will float in water with 0.70 of its volume immersed. The density of leadis 1.13 multiplied by 104 kg/m3.
In the Bohr theory of the hydrogen atom, an electron moves with constant speed in a circular orbit about a proton, where the radius of the orbit is 0.53 x 10-10 m, Determine the electrostatic force exerted by the proton on the electron
imagine punch lives on the earth at rest. judy traveling past the earth with a speed of 0.600 c. if a rocket moving
If we assume that the wave spreads out evenly with no obstructions, what is the electric field strength at the base unit 100 feet from the phone
The Ulysses space probe of the Sun encountered the planet Jupiter in 1998 and returned to make a second sweep over the Sun's poles in 2000-2001. Determine the time (in seconds and minutes) it takes a radio signal to reach the Earth when the space ..
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are decided to be 47.4 km/s and 64.3 km/s. The slower planet's orbital period is 6.37 years.
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