Physics, 02.10.2019 14:50 bossboybaker
At 19 ºc a volume of air takes us 9.0 ml in an expandable container. what is its volume after it is heated up to 50. ºc?
a)3.4 ml
b)8.1 ml
c)10. ml
d)12. ml
Answers: 1
Physics, 22.06.2019 10:00
Which atomic model was proposed as a result of j. j. thomson’s work?
Answers: 1
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 excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
At 19 ºc a volume of air takes us 9.0 ml in an expandable container. what is its volume after it is...