Physics, 14.11.2020 09:40 taesthetic11
A ‘thermal tap’ used in a certain apparatus consists of a silica rod which
fits tightly inside an aluminium tube whose internal diameter is 8mm at
0
0C. When the temperature is raised, the fit is no longer exact. Calculate
what change in temperature is necessary to produce a channel whose
cross-section is equal to that of a tube of 1mm internal diameter. (linear
expansivity of silica = 8X10-6
/K and linear expansivity of aluminium =
26X10-6
/K )
Answers: 2
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Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
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Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?
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Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature
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A ‘thermal tap’ used in a certain apparatus consists of a silica rod which
fits tightly inside an a...
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