Physics, 22.07.2019 18:30 markleal4022
As a blacksmith heats a piece of iron, the iron glows red, then yellow, then white. the iron provides a demonstration of which phenomenon? a. emission spectra b. quantum mechanics c. photoelectric effect d. blackbody radiation
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Physics, 22.06.2019 04:30
True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.
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Physics, 23.06.2019 00:10
An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?
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Physics, 23.06.2019 01:00
What is the role of the water cycle in maintaining freshwater levels in lake and rivers?
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Physics, 23.06.2019 05:30
What are the differences and relationships between speed, velocity, and acceleration
Answers: 1
As a blacksmith heats a piece of iron, the iron glows red, then yellow, then white. the iron provide...
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