Physics, 20.12.2019 22:31 idioticeinstein9021
An experiment begins with crystalline salt at the bottom of an otherwise empty glass. first, students add water to the glass. then they mix the solution until the salt crystals dissolve completely. rate the entropy of the water-salt system during this process from highest entropy to lowest entropy. group of answer choices
a. the entropy of the system shortly after mixing begins > the entropy of the system after the salt dissolves completely > the entropy of the system right after adding the water
b. the entropy of the system after the salt dissolves completely > the entropy of the system shortly after mixing begins > the entropy of the system right after adding the water
c. the entropy of the system right after adding the water > the entropy of the system shortly after mixing begins > the entropy of the system after the salt dissolves completely
d. the entropy of the system after the salt dissolves completely > the entropy of the system right after adding the water > the entropy of the system shortly after mixing begins
e. the entropy of the system shortly after mixing begins > the entropy of the system right after adding the water > the entropy of the system after the salt dissolves completely
f. the entropy of the system right after adding the water > the entropy of the system after the salt dissolves completely > the entropy of the system shortly after mixing begins
Answers: 3
Physics, 22.06.2019 00:30
Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?
Answers: 1
Physics, 22.06.2019 09:00
The material that keeps its new shape after it is stretched is called?
Answers: 1
Physics, 23.06.2019 02:20
3. a particle with initial velocity v⃗ 0=(5.85×103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is b⃗ =−(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.
Answers: 2
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