Physics, 18.05.2021 14:00 mileto1798
Consider the mass spectrometer shown schematically in Figure 1. The magnitude of
the electric field between the plates of the velocity selector is 2 500 V/m, and the magnetic field
in both the velocity selector and the deflection chamber has a magnitude of 0.035 0 T. Calculate
the radius of the path for a singly charged ion having a mass m = 2.18 × 10–26 kg.​
Answers: 2
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What is the fate of the electrons that interact with a specimen in an electron microscope?
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Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
Physics, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
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Physics, 22.06.2019 16:30
Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor
Answers: 1
Consider the mass spectrometer shown schematically in Figure 1. The magnitude of
the electric field...
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