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A research group plans to construct an engine that extracts energyfrom the ocean, using the fact that the water temperature near thesurface is greater than the temperature in deep water. If thesurface water temperature is 20.0°Cand the deep-water temperature is 14.0°C, what is the maximum efficiency such anengine could have?
a charged capacitor with c 630uf is connected in series to an inductor that has l 0.400h and negligible resistance.
A liquid with a specific gravity of 0.72 is flowing at 5.5 ft/sec through a 6 inch diameter pipe (ID=6.065 inches). What is the volumetric flow rate
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
A sphere of copper that has a radius of 5 cm is compressed uniformly by a force of 3.0 108 N. Calculate the change in volume of the sphere
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 540 N. Find out the mass of the worker.
A 1.6 kg ball is at rest on the floor in a 2.4 m ? 2.4 m ? 2.4 m room of air at STP. Air is 80% nitrogen (N2) and 20% oxygen (O2) by volume. What is the thermal energy of the air in the room
Two parallel plates of 10-4 m2 in area aregiven equal and opposite charges of 10-7 C. The spacebetween the plates is filled with a dielectric material and the electric field within the dielectric is 3.3×10-5N/C. Determine the dielectric constant of t..
which describes the electric potential and the electric field at a point due to a negatively charged particle?a the
A uniform, cylindrical pulley of mass M=12.7 kg and radius R=0.636 m rotates freely about a fixed horizontal axis. obtain the magnitude of the angular acceleration of the pulley
a man scientist decides to build a machine that will use a 0.5 tesla magnetic field to make electrons charge 1.6 x
a defibrillator consists of a 15.4-microf capacitor that is charged to 8.2 kv.a if the capacitor is discharged in 1.0
In a Young's double-slit experiment, the seventh dark fringe islocated 0.027 m to the side of thecentral bright finge on a flat screen, What is the wavelength of the light being used
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