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Quantum Mechanics
what is the velocity of a carbon dioxide molecule at 25 degrees centigrade in a one cubic foot box
Quantum Mechanics
the rest energy of a proton equals the total energy of the quarks in the proton their mass energy ,their total potential energy and the toal kinetic energy
1)write an equation expressing the meanings of the symbol as you go
2)If Ep is the total potential energy of the quarks,use the fact that Ep<or= 0 to find an expression for the minimum total kinetic energy of the quarks, an expression in terms of the rest energies of the proton and the up and down quarks
3)Write the rest energies from the book.the quartz masses are given as ranges use the middle of the range for each explain this
5)Assume each quark has one third the total kinetic energy. Calculate the speed of each using Newtons and Einsteins equation is right which is right
1)write an equation expressing the meanings of the symbol as you go
2)If Ep is the total potential energy of the quarks,use the fact that Ep<or= 0 to find an expression for the minimum total kinetic energy of the quarks, an expression in terms of the rest energies of the proton and the up and down quarks
3)Write the rest energies from the book.the quartz masses are given as ranges use the middle of the range for each explain this
5)Assume each quark has one third the total kinetic energy. Calculate the speed of each using Newtons and Einsteins equation is right which is right
Quantum Mechanics
The mass of a nucleus is 0.042 amu less than the sum of the masses of 3 protons and 4 neutrons. What is the binding energy per nucleon in 7 3Li ?
Quantum Mechanics
Plaese explain in details the standard model ..... quarks , leptons as well as all the elementary particles.
Quantum Mechanics
Which of the following is NOT correct?
k⃗ ⋅k⃗ =1
i⃗ ×j⃗ =k⃗
i⃗ ×k⃗ =−j⃗
j⃗ ⋅j⃗ =0
k⃗ ⋅k⃗ =1
i⃗ ×j⃗ =k⃗
i⃗ ×k⃗ =−j⃗
j⃗ ⋅j⃗ =0
Quantum Mechanics
Which of the following is the correct unit of k in the equation of a damped harmonic oscillator given as
−bv−kx=ma
, where b is the damping factor and all the symbols have their usual meaning?
kgms−2
kgs−1
kgms−1
kgs−2
−bv−kx=ma
, where b is the damping factor and all the symbols have their usual meaning?
kgms−2
kgs−1
kgms−1
kgs−2
Quantum Mechanics
If s is distance and t is time, what must be the dimensions of a and b in the equation
s=asin(bt)
?
[a]=[L]−1
,
[b]=[L]−1
[a]=[T]−1
,
[b]=[L]
[a]=[L]
,
[b]=[T]−1
[a]=[L]2
,
[b]=[T]−2
s=asin(bt)
?
[a]=[L]−1
,
[b]=[L]−1
[a]=[T]−1
,
[b]=[L]
[a]=[L]
,
[b]=[T]−1
[a]=[L]2
,
[b]=[T]−2
Quantum Mechanics
What are the dimensions of pressure gradient?
MLT−2
ML−2T−2
ML3T−2
M−2L2T−3
MLT−2
ML−2T−2
ML3T−2
M−2L2T−3
Quantum Mechanics
Which of the following equations is not dimensionally consistent? the symbols have their usual meaning.
s=ut−gt2
Ft=mv−m0
−kx+F0sinωt=ma
ω2=ω20+αθ
s=ut−gt2
Ft=mv−m0
−kx+F0sinωt=ma
ω2=ω20+αθ
Quantum Mechanics
Which of the following quantities have the same dimensions?
moment and power
work and power
torque and work
work and upthrust
moment and power
work and power
torque and work
work and upthrust
