Physics, 02.08.2019 08:00 aliami0306oyaj0n
How many moles of n2o5 are needed to produce 7.90 g of no2 2n2o5 = 4no2 + o2
Answers: 2
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
Answers: 1
Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
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
Physics, 23.06.2019 04:31
You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.
Answers: 2
How many moles of n2o5 are needed to produce 7.90 g of no2 2n2o5 = 4no2 + o2...
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