Which characteristic should a good scientific question have?
It should lead to a hypothesis that is not testable.
It should have a very broad focus with many variables.
It should repeat a question that the researcher has answered before.
It should be based on observations instead of just imagination.

Which term best describes the phrase “something that happens”?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.

Which is an advantage of subdividing science into different areas?