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Physics, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
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Physics, 22.06.2019 15:30
Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
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Physics, 23.06.2019 00:00
Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.
Answers: 1
What is the temperature of a star (in kelvin) if its peak wavelength is 150 nm (that is, 150 x 10^-9...
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