Answers: 3
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excitedโstate hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5ร103 j and the energy transferred thermally out is 99.4ร103 j. there are 1.5ร1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1โ2 b. 2โ3 c. 4โ1 d. 1โ2 and 4โ1 e. none of the above
Answers: 3
Physics, 22.06.2019 15:00
You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?
Answers: 1
A race car makes one lap around a track with a radius of 41 meters in 8 seconds. What is the velocit...
Mathematics, 23.11.2019 05:31