Helppp determine if it’s speed velocity or acceleration

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.

In science and physics what is the standard unit of measure for speed?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?