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A proposed ocean thermal energy conversion (OTEC) system is a heat engine that would operate between warm water (18 degree Celsius) at the ocean's surface and cooler water (4 degree Celsius) 1,005 meter below the surface. Calculate the maximum possible efficiency of the system?
Two large parallel copper plates are 6.3 cm apart and have a uniform electric field between them as depicted in the figure 22-56. An electron is released from the negative plate at the same time that a proton is released from the positive plate.
A 0.19-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.6 m. What is the change in gravitational potential energy of the system from release to reaching the bottom of the well
A converging lens (f 1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 =−28.0 cm). An object is placed to the left of the converging lens, and the final image produced with the two-lens combination lies22.2 cm to the left of the ..
A tennis ball is struck such that it leaves the rackethorizontally with a speed of 28.0 m/s. What is the height of the tennis ball when it leaves the racket
What horizontal force is needed to hold bag in new position
Suppose V rms = 240 V for an alternating current power source. What is the amplitude of the voltage for the source
Unpolarized light passes through two Polaroid sheets. Thetransmission axis of the analyzer makes an angle of 20.1° with the axis of the polarizer. What fraction of the original light is absorbed by the analyzer
a thin glass (n = 1.50) converging lens for which the radii of curvature are R1 = 15.0 cm and R2 = -12.0 cm. Determine the area of the image
A lighthouse sweeps its beam of light around in a circle once every 7.5 s. To an observer in a spaceship moving away from Earth, the beam of light completes one full circle every 15 s. What is the speed of the spacecraft relative to Earth?
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. At some point, the floor of the Graviton drops out, instilling the fear in riders that they will fall a great height.
Wayne pulls a 285 N sled along a snowy path using a rope that makesa 45.0degree angle with the ground. Wayne pulls with a force of 43.4 N. What power does Wayne produce
A mechanic pushes a 2.40 103 kg car from rest to a speed of v, doing 4950 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road,
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