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A farsighted person uses glasses with a refractive power of 3.6diopters. The glasses are worn 2.5 cm from his eyes? What is thisperson's near point when not wearing glasses?
A 1020 kg car moving 40.0 m/s rear ends a 560 kg car at stop. When they collide, the bumpers lock and they move together. how much energy was lost as heat and vibration
A 340 kg piano slides 3.7 m down a 33° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.37.
A mass-spring system oscillates with an amplitude of 5.60 cm. If the spring constant is 226 N/m and the mass is 453 g, determine the mechanical energy of the system
A parallel-plate capacitor is made of two flat metalplates pressed against a thin slab of dielectric material. Thecapacitor is connected to a power supply, and a potentialdifference of 90 V is applied to the plates.
A solid object of density 660 kg/m3 is placed in water. What will be the buoyant force on the object
A platinum resistance thermometer has resistances of 206.97 W when placed in a 0°C ice bath and 257.43 W, What is the melting point of potassium
A potential difference of 4.75 kV is established between parallel plates in air. what is the minimum separation the plates can have without ionizing the air
A 78 kg circus performer jumps from a 4.20 m height onto a trampoline and stretches it downward 0.3m. suppose that the trampoline obeys Hooke's law.
In the overhead view of the figure, a long uniform rod of mass m = 0.29 kg is free to rotate in a horizontal plane about a vertical axis through its center. A spring with force constant 360 N/m is connected horizontally between one end of the rod ..
A steel wire of length 1.92 with circular cross section must stretch no more than 0.300 when a tensile (stretching) force of 410 is applied to each end of the wire. What minimum diameter is required for the wire
Fourteen moles of an ideal monatomic gas expand isothermally at a temperature of 75°C. what is the heat flow into the gas
Water (viscosity = 1centipoise) flows through a cylindrical plug in a laboratory experiment. what is the permeability of the sample in cm^(2)
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