Physics, 23.12.2019 18:31 lavelma2011
Amonatomic ideal gas in equilibrium at a pressure of 3 kpa and a temperature of 300 k is initially confined in a volume of 1.3 m^3 by a wall. the wall is suddenly removed and a new equilibrium state with the volume 10.4 m^3 is reached. you may assume that the system is isolated, such that there is no exchange of heat or work with its surrounding environment.1. what is the total change in entropy? a. δs = 9.01 j/k b. δs = 31.5 j/k c. δs = 0 j/k d. δs = 1.1 j/k e. δs = 63.1 j/k
Answers: 1
Physics, 21.06.2019 23:20
Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?
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Physics, 22.06.2019 12:10
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
Answers: 3
Physics, 22.06.2019 18:00
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
Answers: 2
Physics, 23.06.2019 00:10
An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station
Answers: 1
Amonatomic ideal gas in equilibrium at a pressure of 3 kpa and a temperature of 300 k is initially c...
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