Physics, 15.10.2019 06:50 Juliianatafur22
If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate the efficiency of the engine.
Answers: 2
Physics, 22.06.2019 22:00
Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
Answers: 1
Physics, 23.06.2019 09:30
Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.
Answers: 2
Physics, 23.06.2019 16:30
Protein provides 4 calories per gram. mary is on a diet that requires her to eat at least 40 grams of protein each day.she's eaten 152 calories of protein today.howmuch more protein does mary need to eat to meet her goal
Answers: 2
If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate...
English, 30.07.2019 13:00
History, 30.07.2019 13:00
Spanish, 30.07.2019 13:00
Chemistry, 30.07.2019 13:00
Mathematics, 30.07.2019 13:00
World Languages, 30.07.2019 13:00
Mathematics, 30.07.2019 13:00
Spanish, 30.07.2019 13:00
Mathematics, 30.07.2019 13:00
Spanish, 30.07.2019 13:00