Physics, 10.04.2020 21:56 williams6129
Imagine an alternate universe where the value of the Planck constant is 6.62607X10^-9·Js
In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics?
A bacterium with a mass of 8.0 pg, 6.0 μm long, moving at 9.00 μm/s
A human with a mass of 39. kg, 1.5 m high, moving at 2.7 m/s
A buckyball with a mass of 1.2 x 10-21 g, 0.7 nm wide moving at 22. m/s
A grain of sand with a mass of 255 mg, 525, μm wide, moving at 8.00 mm/s
Answers: 1
Physics, 22.06.2019 03:00
Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.
Answers: 2
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
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Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
Imagine an alternate universe where the value of the Planck constant is 6.62607X10^-9·Js
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