Homework Statement
If I throw a rock upwards with an initial velocity and throw a rock downwards, what is the speed of the rocks just before they hit the ground?
Homework Equations
The Attempt at a Solution\
They should hit the ground at the same speed and different times. I...
Say I have an airplane that is performing a loop at a constant speed. Why is it that at the top of the loop the normal force points inward and not upward due to the lift of the plane?
That way, at the top of the loop, when the pilot is upside down, he feels lighter due to the lift of the...
Homework Statement
You're speeding at 85 km/h when you notice that you're only 10m behind the car in front of you, which is moving at the legal speed limit of 60 km/h. You slam on your brakes, and your car decelerates at 4.2 m/s^2. Assuming the car in front of you continues at constant...
What I mean is what if the force originates from outside the closed surface and passes through it, assuming the surface is made of a penetrable material.
[b]1. The problem statement, all variables and given/known dat
Say I have a closed surface
is the flux across this closed surface only zero if the force originates from inside the surface?
What about if it originates outside the closed surface and can penetrate through the closed surface...
Homework Statement
Let F(x,y,z)= a^2 xi+(y/a)j +az^2k and let sigma be the sphere of radius 1, centered at the origin and oriented outward. Find all values of a such that the flux of F across sigma is 10.
Homework Equations
Stokes Theorem
Gauss's Theorem...