Physics, 22.09.2019 06:30 jimmyjimjim
Adriver sets out on a journey. for the first half of the distance she drives at the leisurely pace of 30 mi/h; during the second half she drives 60 mi/h. what is her average speed on this trip?
Answers: 1
Physics, 21.06.2019 23:10
A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
Answers: 1
Physics, 21.06.2019 23:30
If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)
Answers: 1
Physics, 22.06.2019 15:10
What does si stand for,when referring to a system of measurement
Answers: 1
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Adriver sets out on a journey. for the first half of the distance she drives at the leisurely pace o...
English, 10.03.2021 21:00
Mathematics, 10.03.2021 21:00
Geography, 10.03.2021 21:00
History, 10.03.2021 21:00
Mathematics, 10.03.2021 21:00
Mathematics, 10.03.2021 21:00
English, 10.03.2021 21:00
SAT, 10.03.2021 21:00
Mathematics, 10.03.2021 21:00
History, 10.03.2021 21:00
Geography, 10.03.2021 21:00
Mathematics, 10.03.2021 21:00