Physics, 14.07.2021 14:00 ellisc7044
After landing the aeroplane's momentum becomes zero . explain how the law of conservation holds here
Answers: 1
Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
Physics, 22.06.2019 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
Answers: 1
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
After landing the aeroplane's momentum becomes zero . explain how the law of conservation holds here...
Mathematics, 26.09.2021 22:20
English, 26.09.2021 22:20
History, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
English, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
World Languages, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
Physics, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
English, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20
English, 26.09.2021 22:20
English, 26.09.2021 22:20
Mathematics, 26.09.2021 22:20