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A new plastic-molding facility has a large amount of waste heat available at 300.°F. The local environmental temperature is 75.0°F. As an entry-level engineer, you are to investigate possible energy savings by determining
a. The thermal efficiency of a Carnot engine operating between these temperatures.
b. The coefficient of performance of a Carnot heat pump operating between these temperatures.
c. The coefficient of performance of a Carnot refrigerator operating between these temperatures.
a mechanism on earth used to shoot down geosyn- chronous satellites that house laser-based weapons is finally perfected
A camera has a lens with a focal length of 25.6 cm. how far from the film should the lens be placed
A 25 gram ball is fired with an initial speed v1 toward a 125 gram ball that is hanging motionless from a 1.25 meter string. The balls have a perfectly elastic collision. As a result, the 125 gram ball swings out until the string makes an angle of..
Halfway through the process, the man and the daughter are each traveling with speeds of 1.10 m/s, with the man's velocity directed toward one end of the canoe and the daughter's velocity directed toward the other end of the canoe. what is the spee..
A curve of radius 65 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve
Two very long, parallel wires separated by a distance of 1.0 centimeter carry opposite currents of 8.0Amp. Obtain the magnetic field at the midpoint between the wires
What is the maximum allowable deflection (in inches) of a platform plank 7'-0" long
A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9 x 10^7 m. What would be the magnitude of the gravitational force exerted on the satellite by the planet if the radius of the orbit were increased to 3.6 x 10^7..
a crane is lifting a180kg crate upward with an acceleration of 1.2.the cable from the crate passes over a solid
How much work is done on it by the external force? What is the potential difference between the particle's final and initial positions?
An image of the moon is focused onto a screen using a converging lens of focal length f = 36.5 cm. The moon radius is 1.74×106 m. Its distance from the earth is variable; presume 3.69×108m. What is the diameter of the moon's image?
You are designing an underwater maintenance schedule for anoffshore oil rig. The divers work at a depth of 15 m and theseawater density is 1027 kg m^-3 . They are known to consume 130litres of air at the ambient temperature is 10 o C over the timetak..
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