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A research group plans to construct an engine that extracts energy from the ocean, using the fact that the water temperature near the surface is greater than the temperature in deep water. If the surface water temperature is 26.0°C and the deep-water temperature is 14.0°C, what is the maximum efficiency such an engine could have?
A Meteorite Strikes On October 9, 1992, a 27-pound meteorite struck a car in Peekskill, NY, leaving a dent 22 cm deep in the trunk. If the meteorite struck the car with a speed of 130 m/s , what was the magnitude of its deceleration, assuming it t..
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 800 m, horizontal distance 19.4 km, and 22.5° south of west. What is the distance between the two aircraft
A blender is switched to a lower speed and the angular velocity of its blade decreases uniformly from 52 rad/s to 12 rad/s. Through what angle does the blade turn during this time
A spring-loaded pellet gun is designed to fire 2.50 g projectiles horizontally at a speed of 50.7 m/s. What maximum force is required to load the gun
What is the speed of the center of mass
A stone is thrown horizontally from the top of a 15m building. The stone hits the ground at a point 24m from the base of the tower. Determine the speed of the stone just before it hits the ground
A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has the total charge of -1q and outer shell has a total charge..
An object is fired at 30.0 m/s at an angle of 35.0 degrees from a vertical cliff that is h meters (where h is unknown quantity) above the sea. calculate the velocity vector of the object
What must the minimum muzzle velocity be for the shell to clear the top of the cliff?
An exoplanet with a mass of 5 times the mass of Jupiter and a radius of 2 Jupiter radii orbits a 3 solar mass star a distance of 10 AU from the star. estimate the orbital velocities of the star and the planet
A violin string has a length of 0.360 m and is tuned to concert G, with fG = 392 Hz. (a) How far from the end of the string must the violinist place her finger to play concert A, with fA = 440 Hz? cm from the bridge (b) If this position is to remain ..
A tungsten filament used in a flashlight bulb operates at 0.20 A and 3.0 V. find the temperature of the filament when the flashlight is on
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