The distance between the first and fifth minima of a single-slit diffraction pattern is 0.400 mm with the screen 37.0 cm away from the slit, when light of wavelength 570 nm is used. (a) find the slit width. (b) calculate the angle θ of the first diffraction minimum.

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What does si stand for,when referring to a system of measurement

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?