a cooling fan is turned off when it is running at 850 rev/min . it turns 1350 revolutions before it comes to a stop.

In a system, when potential energy decreases, then entropy also decreases. true false

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.