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Creativity helps a scientist toA) propose non testable theories about solar system B)post valid scientific questions about solar systemsC) give unacceptable explanations about the solar systemD) use biased methods to answer questions about the solar system

Answer: 1) Water has very high specific heat. 2) It expands when it freezes 3) ability to dissolve in ionic substances 4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. Explanation: 1) Water molecules due to their high specific heat , undergo relatively …

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In order to test a hypothesis, the variable that the scientist changes to a predetermined value is known as _________________. is. the controlled variable b. the dependent variable c. the independent variable d. all of the above

Keywords: Polynomial, identify, ascending order For this case, we must identify the polynomial that is written in ascending order. If we want to order a polynomial of ascending form, we must organize the polynomial from least to greatest exponent. By definition, a polynomial is of the form: Where: a, b, …

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An oceanographer discovered new seafloor being formed in the ocean at a divergent fault. The scientist classifies this as a trench. Is the scientist correct or incorrect and why or why not?

The scientist is incorrect in his statement. The new seafloor is formed at places where there’s divergent plate boundaries. Because the two or more plates are moving away from one another, the crust becomes thinner, so the high temperatures, pressures, and magma manage to penetrate from the mantle very easily. …

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A scientist adds heat to each of the following substances. Which will probably absorb the most heat before its temperature changes significantly? 50 g of solid copper 50 g of solid iron 50 g of liquid water 50 g of sand Question 2(Multiple Choice Worth 2 points) A drop of water placed on a smooth, dry surface will form a dome-shaped droplet instead of flowing outward in different directions. Which of these best explains this observation? The bonds between hydrogen and oxygen atoms are very strong. The electrons in the atoms attract the electrons in the other atoms. Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. Water molecules near the surface produce more buoyant force than water molecules within the liquid. Question 3(Multiple Choice Worth 2 points) Which of these best explains what happens when the ionic substance calcium chloride (CaCl2) dissolves in water? The oxygen atoms in the water molecules are attracted to the Ca2+ ions. The oxygen atoms in the water molecules are attracted to the Cl− ions. The hydrogen atoms in the water molecules are attracted to the Ca2+ ions. The oxygen atoms in the water molecules are attracted to the H+ ions. Question 4(Multiple Choice Worth 2 points) Which of these statements about water is true? Its atoms share electrons equally. It can dissolve all known substances. Its molecules are farther apart in the solid state than in the liquid state. It has a lower specific heat than nearly all known metals.

The gravitational force Fg between two objects is given by the equation: Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.  Due to the gravitational attraction the pencil and the eraser will …

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Areas near oceans or large lakes tend to have more moderate climates than do areas far from large bodies of water. Which of these statements best explains this observation? Hydrogen and oxygen atoms share electrons in a water molecule. Lakes and oceans contain dissolved solids. Water has a very high specific heat. Water produces buoyant forces. Question 2(Multiple Choice Worth 2 points) A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lose a lot of energy, the hydrogen bonds hold them relatively far apart. Based on this information, what can the scientist infer about the substance? It expands when it freezes. It is highly colored. It exists only as a gas. It does not dissolve ionic compounds. Question 3(Multiple Choice Worth 2 points) Which of the following properties of water is due primarily to the uneven distribution of charge between the hydrogen and oxygen atoms? its color its taste its ability to dissolve ionic substances its ability to produce buoyant forces Question 4(Multiple Choice Worth 2 points) A drop of water placed on a smooth, dry surface will form a dome-shaped droplet instead of flowing outward in different directions. Which of these best explains this observation? The bonds between hydrogen and oxygen atoms are very strong. The electrons in the atoms attract the electrons in the other atoms. Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. Water molecules near the surface produce more buoyant force than water molecules within the liquid.

The gravitational force Fg between two objects is given by the equation: Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.  Due to the gravitational attraction the pencil and the eraser will …

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QUESTION 4 A scientist who alters data to ensure a desired outcome is: Behaving unethically Displaying creativity Proving a hypothesis correct QUESTION 5 An ethical scientist exhibits which of the following characteristics? Bias Logic Honesty QUESTION 6 Scientists who work with human subjects have an ethical responsibility to ensure their subjects are not harmed. True False QUESTION 7 Scientists must report data honestly, regardless of personal bias. True False 2 points Save Answer QUESTION 8 A scientist only reports data that supports his hypothesis that a new medication has a positive outcome for certain patients. This is an example of which of the following? A hypothesis Bias Logic 3 points Save Answer QUESTION 9 Scientists may disregard data that conflicts with their personal preferences. True False

The equation of the car is given by the equation,                           x(t) = 2.31 + 4.90t² – 0.10t⁶ If we are going to differentiate the equation in terms of x, we get the value for velocity.     …

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When working on a project a scientist discovers that some of the data she was basing her research on was not accurate. what should the scientist do?

There came other atom models: Thompson’s model, Rutherford’s model, Bohr’s model… and finally, Schrödinger’s theory. Besides, keep in mind that: -When an atom loses an electron, that electron has to end up in another atom, and then you have cations and anions… and a cation always has to be near …

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What scientist shot alpha particles into gold

Answer: A change in which chemical composition of the substance changes is known as a chemical change and said to have undergone a chemical reaction and a change in which only the physical properties of a substance change is known as a physical change. Processes like cutting, grinding, phase change …

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A scientist counts 25 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 25 ∙ 3x models the number of bacteria after x hours. Estimate when there will be about 1170 bacteria in the culture

A scientist counts 25 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 25 ∙ 3x models the number of bacteria after x hours. Estimate when there will be about 1170 bacteria in the culture

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While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid with double strands and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, what conclusion can the scientist draw regarding this nucleic acid

While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid with double strands and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, what conclusion can the scientist draw regarding this nucleic acid

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NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!! A scientist measures the rate of a reaction between two liquids. Then he performs the reaction again, adding solid manganese. The reaction takes place more quickly the second time. The mass of the manganese decreased by 0.45 grams during the reaction. He claims that the manganese acted as a catalyst because it sped up the reaction. Explain what is wrong with the scientists’ reasoning.

       Density = (mass) / (volume)                                 4,000 kg/m³ = (mass) / (0.09 m³) Multiply each sideby  0.09 m³ :           (4,000 kg/m³) x (0.09 m³) = mass                …

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Suppose a scientist doing an experiment in nuclear fusion starts out with twelve atoms. How many atoms will most likely result from the experiment?

Explanation : The forces that govern all matter in the universe are : (1) Gravitational force (2) Electromagnetic force (3) Strong nuclear force (4) Weak nuclear force The characteristics of the weak nuclear force are: (1) These forces are stronger than gravity. (2) These forces are effective only for short …

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After the last major ice age, sea levels around the world rose. As they did, the rising waters divided what was once a single island in the North Sea into two different islands. A population of rabbits was split between the two islands. Ten thousand years passed with no contact between the two rabbit groups. In recent times, a scientist attempted to breed individuals from the two groups, but he was unsuccessful in doing so. Why were rabbits from the two groups unable to produce offspring together? A.The groups belonged to different breeds of rabbits. B.The groups were adapted to very different climates. C.The groups had evolved into separate species. D.The groups were not able to recognize each other.

a. (+4, -2) We can use the following conventions: – x-axis: east-west direction, with east being positive x and west being negative x – y-axis: north-south direction, with north being positive y and south being negative y With this coordinates, the movie theater is: – 4 km east –> this …

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) A scientist who is researching marshes observes that marsh grass, Spartina bakeri, grows to different heights at different locations in the marsh. If the scientist wants to find the reason for this difference, what is the correct first step?

Answer: Hello there! we have the equation y = 1.09x, that describes the number of yards y in x meters. a) Yes, if you have negative numbers of x (this means negative meters, this is used usually to denothe something that is behind the observer) then the equation transform them …

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