Physics, 18.03.2021 14:00 Kathryn014
A metal container is used to cook food. The metal container has thick walls. Hot cooking oil at a
temperature of 120 °C is poured into the container.
(a) The outside surface of the container gets hot. Some thermal energy passes through the metal
because vibrating atoms in the metal collide with neighbouring atoms and transfer
energy to
them.
Explain how the rest of the thermal energy is conducted through the metal container to the
outside surface by another process.
Answers: 3
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An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
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Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves
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Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.
Answers: 3
A metal container is used to cook food. The metal container has thick walls. Hot cooking oil at a
t...
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