Physics, 14.12.2019 05:31 tomoetoes6910
Awell-insulated cup of water is too hot to make tea, so you mixed it with an equal amount of cool water to lower the temperature. the temperature of the mixture is exactly the midpoint between the temperature of the hot and cool water. what is the entropy change of the system consisting of the total amount of water? is it positive, negative, or no change? view available hint(s) a well-insulated cup of water is too hot to make tea, so you mixed it with an equal amount of cool water to lower the temperature. the temperature of the mixture is exactly the midpoint between the temperature of the hot and cool water. what is the entropy change of the system consisting of the total amount of water? is it positive, negative, or no change? the change in entropy of the total amount of water is positive as a result of the mixing. the sign of the entropy change cannot be determined because the amount of thermal energy transferred is not given there is no entropy change in the total amount of water as a result of the mixing. the sign of the entropy change cannot be determined because the amount of water is not given. the change in entropy of the total amount of water is negative as a result of the mixing.
Answers: 2
Physics, 21.06.2019 22:00
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
Physics, 22.06.2019 01:30
Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a
Answers: 2
Physics, 22.06.2019 09:30
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 10:00
The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.
Answers: 2
Awell-insulated cup of water is too hot to make tea, so you mixed it with an equal amount of cool wa...
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