Answers: 1
Another question on Physics
Physics, 22.06.2019 03:50
A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c
Answers: 3
Physics, 23.06.2019 12:30
The potential energy for a mass on a spring is proportional to the square of which of these quantities? a. mass b. frequency c. period d. displacement e. velocity
Answers: 1
Physics, 23.06.2019 13:10
The momentum of a car travelinv in a straight line at 20 m/s is 24,500kg·m/s. what is the cars mass?
Answers: 1
Physics, 23.06.2019 13:10
Which of the following is not a double-replacement? a.) hno3 (aq) + kho (aq) -> h2o (l) + kno3 (aq)b.) ba(oh)2 (aq) + 2hclo4 (aq) -> ba(clo4)2 (aq) + 2h2o (l)c.) naoh (aq) + hcl (aq) -> h2o (aq) + nacl (s)d.) zn (s) + 2hcl (aq) -> h2 (g) + zncl2 (s)
Answers: 1
You know the right answer?
If an ion has 43 protons and 51 electrons, does it have a positive, negative, or neutral charge?...
Questions
English, 23.06.2019 11:10
English, 23.06.2019 11:10
Mathematics, 23.06.2019 11:10
History, 23.06.2019 11:10
Mathematics, 23.06.2019 11:10
Biology, 23.06.2019 11:20
Mathematics, 23.06.2019 11:20
Mathematics, 23.06.2019 11:20
Mathematics, 23.06.2019 11:20
