Physics, 20.02.2021 04:50 infoneetusinghoyg22o
3. At the end of the lab all of the matter (such as the string, the ball and the books) stayed in the
area. The potential energy, that was stored in the ball on the high shelf and suspended weights
as well as the stored mechanical energy of the sling shot, had left the system in the form of
sound, motion and heat. What type of energy system (open, closed or isolated) is
represented by the lab device and why? (3 points)
Type: :
Why?
Answers: 2
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Heat from the sun reaches earth to a. radiation b. convection c. conduction
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How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
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A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.
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I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.
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3. At the end of the lab all of the matter (such as the string, the ball and the books) stayed in th...
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