Physics, 06.12.2019 23:31 madelyngv97
It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases 2.80 × 107 j of energy when burned. to illustrate this difficulty, calculate the number of liters of water that must be expended to absorb the energy released by burning 40 l of crude oil, if the water has its temperature raised from 20.0∘c to 100∘c , it boils, and the resulting steam is raised to 300∘c.
you may need some or all of the following constants: the specific heat of water is 4186 j/kg ∘c and the specific heat of steam is 1520 j/kg ∘c. the heat of vaporization for water is 2256000 j/kg .
Answers: 2
Physics, 22.06.2019 09:30, kaleahlove13
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
Answers: 2
Physics, 22.06.2019 19:10, simmonss1185
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
It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases...
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