You work with a catering firm and have been given a challenge. By emptying several liquid beverage dispensers, you have to rank them in order of their content (which one is fullest, next fullest, etc.) Having had a physics class, you simply open the horizontal spouts all from the same height and compare where the streams land on the ground below. In terms of how far each stream lands from the jug, which of the following statements is correct:
A) The pressure (and hence water level) is lower when the speed is lower. Lower speeds result in smaller ranges and the streams will land closer to the jug.
B) The pressure (and hence water level) is higher when the speed is lower. Lower speeds result in smaller ranges and the streams will land closer to the jug.
C) The pressure (and hence water level) is lower when the speed is lower. Lower speeds result in larger ranges and the streams will land closer to the jug.
D) Water speed has no effect on pressure.

Question

Quizplus · Accepted Answer

The pressure at the spout, which is related to the water level in the jug, determines the speed of the water as it exits. Higher pressure (and thus higher water level) results in higher speeds, which in turn results in the water stream landing farther from the jug. Conversely, lower pressure results in lower speeds, causing the streams to land closer to the jug.

You Work with a Catering Firm and Have Been Given