Physics, 19.03.2020 21:01 patrickfutrell2537
A woman holds a 41-N weight at arm's length for 11 seconds. Her arm is 1.3-m above the ground. The work done by the woman on the weight to keep the weight steady is J. Round your answer to the nearest whole number.
Answers: 3
Physics, 21.06.2019 14:30
Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright
Answers: 2
Physics, 22.06.2019 02:10
Which statement correctly describes the relationship between frequency and wavelength?
Answers: 2
Physics, 22.06.2019 06:30
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35Β°c by rejecting waste heat to cooling water that enters the condenser at 18Β°c at a rate of 0.25 kg/s and leaves at 26Β°c. the refrigerant enters the condenser at 1.2 mpa and 50Β°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
A woman holds a 41-N weight at arm's length for 11 seconds. Her arm is 1.3-m above the ground. The w...
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