Physics, 03.08.2019 11:40 Armendariz1
The state is thinking about building a dam. they hire a team of biologists and environmental scientists to study the impact of the dam on the local wildlife. which statement best explains how this study will be useful to the state? the state will be able to weigh the benefits against the negative impact that the project might have in order to decide if it is safe to build the dam. a local fishermen's club is against the project. this study will prove that there will be no impact on fish populations. environmentalists will be opposed to the project. the study will prove the dam should be built, and the environmentalists will have to consent. the state will be able to save money on the construction of the dam since they will have more information about the area. question 12(multiple choice worth 2 points)
Answers: 1
Physics, 22.06.2019 00:00
Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
Answers: 2
Physics, 22.06.2019 05:30
Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted
Answers: 1
Physics, 22.06.2019 11:20
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
Answers: 3
Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
The state is thinking about building a dam. they hire a team of biologists and environmental scienti...
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