Physics, 15.11.2020 01:10 makayladurham19
Which object has the most thermal energy? A. 2 kg of liquid oxygen at -225°C о O B. 5 kg of oxygen gas at 30°C C. 5 kg of liquid oxygen at -220°C D. 2 kg of oxygen gas at 20°C PREVIOUS
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Aballet student who learns with the of his instructor is demonstrating learning.
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Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.
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3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0
Answers: 2
Which object has the most thermal energy? A. 2 kg of liquid oxygen at -225°C о O B. 5 kg of oxygen g...
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