Physics, 17.09.2019 12:00 djnkyworld
Which equation shows the correct relationship between mechanical energy, kinetic energy, and potential energy?
a. me = ke + pe
b. me + ke = pe
c. me = ke - pe
d. me + pe = ke
Answers: 2
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
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 13:20
Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron
Answers: 2
Which equation shows the correct relationship between mechanical energy, kinetic energy, and potenti...
Mathematics, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Spanish, 19.10.2019 05:00
Chemistry, 19.10.2019 05:00
Chemistry, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Geography, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Mathematics, 19.10.2019 05:00
Computers and Technology, 19.10.2019 05:00
History, 19.10.2019 05:00