subject
Physics, 02.08.2019 18:30 kingdede8811

Which of the following statements is a logical consequence of the second law of thermodynamics?
a) if the entropy of a system increases, there must be a corresponding decrease in the entropy of the universe.
b) if there is an increase in the energy of a system, there must be a corresponding decrease in the energy of the rest of the universe.
c) every energy transfer requires activation energy from the environment.
d) every chemical reaction must increase the total entropy of the universe.
e) energy can be transferred or transformed, but it cannot be created or destroyed.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 18:30
Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain
Answers: 2
question
Physics, 21.06.2019 22:30
Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate
Answers: 2
question
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
question
Physics, 22.06.2019 09:00
In the first law of thermodynamics, triangle e=q-w, what does q stand for
Answers: 1
You know the right answer?
Which of the following statements is a logical consequence of the second law of thermodynamics?
Questions
question
Mathematics, 02.03.2021 01:30
question
Mathematics, 02.03.2021 01:30
question
Mathematics, 02.03.2021 01:30
question
Mathematics, 02.03.2021 01:30
Questions on the website: 13722367