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A long sighted person can only see clearly objects further than 1.2 m away.They wish to read a book held 30 cm away. Calculate the power (in diopters) of the lens in thier corrective spectacles: state if the lens is concave or convex and draw a ray diagram that has the appropriate image and object positions labeled.
An ideal gas occupies 0.14 m3 at an absolute pressure of 1.2×105 Pa and temperature 280 K, How many moles of gas are there
You are traveling on an airplane. The velocity of the plane with respect to the air is 130.0 m/s due east. What is the speed of the plane with respect to the ground
Physics - Classical Mechanics - Inclined Plane, A packing crate is placed on a plane inclined at an angle of 350 from horizontal. If the coefficient of static friction
Five grams of nitrogen gas at an initial pressure of 3.0 atm and at 20? C undergo an isobaric expansion until the volume has tripled. What is the gas volume after the expansion
questionan anchored barge that extends across a canal by distance d 30 m and into the water by distance b 12 m. the
Mars rotates on its axis once every 1.02 days (almost the same as Earth does). (a) Find the distance from Mars at which a satellite would remain in one spot over the Martian surface. (Use 6.42 1023 kg for the mass of Mars.) m (b) Find the speed of th..
Two insulated spheres have radii r1 and r2, and charges q1 and q2, What is their combined kinetic energy when they collide, in terms of the variables above, and k the constant in Coulombs Law
A roller-coaster car moves 192 ft horizontally and then rises 144 ft at an angle of 30° above the horizontal. It then travels 144 ft at an angle of 40° downward. What is its displacement from its starting point? Use graphical techniques. (Do this on ..
The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 950 ohm resistor in series with the deflection plates.
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.49 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
A neon sign utilizes a step-up transformer to run at 6000 V on the 120 V from the wall outlet. how many turns does the secondary coil have
A skier starts from rest at the top of a hill that is inclined at 10.5? with the horizontal. The hillside is 191 m long, and the coefficient of friction between snow and skis is 0.0677. At the bottom of the hill, the snow is level and the coef..
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