What are the characteristics of theta waves

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Arrange the images in order to show how lake-effect snow occurs.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?