Homework Statement
A single slit is illuminated with 660 nm and the resulting diffraction pattern is viewed on a screen 2.3 m away.
a. If the linear distance between the 1st and 2nd dark fringes of the pattern is 12 cm. What is the width of the slit?
Homework Equations
W(X/L) =...
Homework Statement
A small conducting sphere of mass M is attached to a string of length L. It is at rest in a uniform electrical field of magnitude E directed due right. The sphere has a charge of Q and the string makes a 30 degree angle with the electric field.
a. Calculate the...
[SOLVED] Kinetic Energy Question
Homework Statement
An object is dropped off a cliff of height h and is subjected to an average force of air resistance of F. If the object has a mass of m the KE it gains during the fall will be equal to.
a. mgh
b. mgh + f
c. mgh -f
d. mgh+ fh
e. mgh -...