Homework Statement
A projectile is launched at 110.0 m/s at 40.0° above the horizontal off a cliff that is 250.0 m above sea level. After 4.00 s of flight, this projectile launches a second projectile at 50.0 m/s directed at 15.0° below the horizontal.
a) Find the max height of the second...
Homework Statement
In a double slit-experiment, how far apart do the path length differences have to be to get a pattern with adjacent constructive and destructive interference fringes?
I have no clue how to even begin this problem.