A 3kg particle has a velocity of (3i-4j) m/s. Find the magnitude of its momentum?
=============================================
Answers:
a) 9kg m/s
b) -12 kg m/s
c) 15 kg m/s
d) 3 kg m/s
##################################################
A sinusoidal wave is described by y=(0.30m)sin(0.20x-40t). Determine the wave speed.
===============================================
Answers:
a) 100 m/s
b) 133 m/s
c) 150 m/s
d) 200 m/s
================================================
OTA: Please take this problem only if you can show step by step problem solving techniques and equations used. Thank you.
a) 100 m/s
b)
Solution Preview
Hello and thank you for posting your problem to Brainmass.
Here is my solution:
The momentum vector is the velocity vector multiplied by the mass of the particle:
P=mV
V=3i-4j
m=3
P=3(3i-4j)=9i-12j
To find the total magnitude of the momentum, one must find the magnitude of the vector:
|P|=sqrt(Px^2+Py^2)
Where Px is ...
Solution Summary
The solution provides answers to the two questions. It shows how to find the magnitude of the momentum vector and how the Dlambert solution is applied to the sine wave.
... What are its a) wavelength b) momentum c) speed d) kinetic energy e) what would the wave function of a free proton traveling at the same speed be? ...
... Using that the momentum wave function is the Fourier transform of the spatial wave function we obtain an expression for this expected value in term of the ...
... ___/ \__ x x0. The above represents a wave centered at x0, but which is also (like all waves) spread out in space. And its momentum is similarly spread out. ...
... h is the Plank constant and p the momentum, and this wavelength matches that found experimentally. If the particle is behaving like a probability wave there is ...
Physics: velocity, speed, force, temperature, energy, magnitude, acceleration, wave. ... has a velocity of (3i - 4j) m/s. Find the magnitude of its momentum. ...
... prevents any k0a = nπ reflection of a wave packet. ... L H atom energy The total angular momentum of the ... electron spin and orbital angular momenta, gives rise ...
... of as sound waves propagating through the crystal lattice. Each atom is specified by three independent position coordinates, y,z, and three conjugate momentum...
... The solution shows in detail how to normalize the wave function, its time evolution and then how to calculate the position and momentum expectation values ...
