Physics, 05.01.2020 00:31 kaitlyn114433
What is the change in internal energy if 20 j of heat is released from a system and the system does 50 j of work on the surroundings?
a.-80 j
b.-20 j
c.80 j
d.20 j
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 00:40, yaneiryx5476
Aballet student who learns with the of his instructor is demonstrating learning.
Answers: 3
Physics, 22.06.2019 11:50, azertyqwerty123
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Physics, 22.06.2019 13:30, livingfamyboys35
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
Physics, 22.06.2019 17:20, misstaejailicious200
Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums
Answers: 2
You know the right answer?
What is the change in internal energy if 20 j of heat is released from a system and the system does...
Questions in other subjects:
Spanish, 28.07.2019 23:50
Mathematics, 28.07.2019 23:50
English, 28.07.2019 23:50
History, 28.07.2019 23:50
Mathematics, 28.07.2019 23:50
