What pressure difference is required between the ends of a 2. 0- m -long, 1. 0- mm -diameter horizontal tube for 40 ∘c water to flow through it at an average speed of 4. 0 m/s ?.

Why do you think electric energy for households is generally supplied by power plants instead of by an electric generator at home.

Living organism in our word are connected to other variety of ways

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.