Graph (a) below describes the density versus time of a pressure wave traveling through an elastic medium. Graph (b) describes the density versus distance for the same wave A. Use graph (a) to find the period of oscillation of this wave and its frequency.

B. Use graph (b) to find the wavelength and the speed.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

What is a possible result of higher air temperature caused by global warming

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?