The sound sorce has a frequency of 260hz , how much will the frequency be registered by the reciver. plss me

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Me with this and you will be marked brainliest