An inventor develops a stationary cycling device by which an individual while pedaling, can convert all of its energy into heat to warm water. What minimum power must be generated if 300 g of water is to be heated in 10 minutes from 20 c to 95 c( specific heat of water is 4186 j/(kg c) ).

The press is free to say whatever they want about whomever they want, regardless of whether they know it’s true. true false

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.

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.