Categories

## Z(q) = 4q + 1/2…The zoomster function z used in space flight engineering is defined above. If, for some number u, z(u + 1/2) = 1/2, then what is the value of u ?

We are given the equation:

Z(q) = 4q + ½    —>
1

The equation for z(u + 1/2) is obtained by
substituting q with u + ½ in the equation, therefore we can say that:

q = u + ½          —>
2

Substituting this value into equation # 1:

Z = 4 (u + ½) + ½ = z (u + 1/2)

4 u + 2 + ½ = z (u + 1/2)

Since it was given that   z (u +
1/2)  = ½     then,

4 u + 2 + ½ = ½

4 u + 2.5 = 0.5

4 u = -2

Categories

## Which is a good example of adaptive evolution? The red fox that inhabits farmlands and forests has a red coat, but its relative, the kit fox, lives in a desert has a sandy–colored coat. Two birds of the same species separate during their migratory flight. After several years, their descendants are quite different from each other. Two species of fish try to swim against the current near a waterfall. One survives, but the other doesn't.

Which is a good example of adaptive evolution? The red fox that inhabits farmlands and forests has a red coat, but its relative, the kit fox, lives in a desert has a sandy–colored coat. Two birds of the same species separate during their migratory flight. After several years, their descendants are quite different from each other. Two species of fish try to swim against the current near a waterfall. One survives, but the other doesn’t.

Categories

The answer to your question would be that the sentence that correctly shows where a semicolon is needed in the sentence is the following one: All astronauts had master’s or doctorate degrees, but only two were jet pilots; consequently, the astronauts with no flight experience had to complete one year of flight training.

Explanation:

The sentence above contains the conjunctive adverb consequently. You should always use a period or semicolon before the conjunctive adverb when separating two independent clauses. That is why the last sentence is the one that is correctly punctuated.

Categories

## 6. What is a major corporation that includes a number of smaller companies in unrelated industries? a consumer mandate a franchise a conglomerate none of the above 7. What was “white flight”? middle-class white Americans leaving the cities for the suburbs rural poor moving to the cities middle-class white Americans leaving the suburbs for the cities urban poor moving to the country 8. In this case, the Supreme Court required criminal courts to provide free legal counsel to those who could not afford it. Gideon v. Wainwright Miranda v. Arizona Baker v. Carr Brown v. Board of Education 9. In 1896, in _______, the Supreme Court ruled that a Louisiana law requiring “separate but equal” public accommodations was constitutional. Sweatt v. Painter Plessy v. Ferguson Morgan v. Virginia Brown v. Board of Education of Topeka 10. Who gave the “I Have a Dream” speech during the march on Washington? A. Philip Randolph Robert Moses Martin Luther King, Jr. Bayard Rustin

Industrialization led to rising imperialism because
1) show of power: As one makes new technology, they would either want to test it out or show the other nations that what they produce is ground-breaking and the best. Usually if it is military technology, you would want to test it out, and with the use of “show of force”, can have people groups submit to your country.
2) Better technology: As technology advances, it usually makes something easier. In the case of imperialism, better military advances meant that they could (once again) have other people submit to you
3) Better transportation: This meant that you could take multiple countries at once, and can prove that you’re country is great by having supplies shipped over long distances to keep your troops up. If in need of more troops, you could send more.

hope this helps

Categories

## 25. From left to right across a period in the periodic table, elements become less ___________ and more ______________ in their properties. 26. Francium has 36 isotopes, but only francium-223 occurs in nature. Francium-223 spontaneously emits particles and energy, so francium-223 is a(an) _____________ of francium. 27. At sea level, water ______________ at 100°C. 28. Cooking requires continuous addition of energy to the chemical reactions that are taking place. The chemical reactions involved in cooking can be described as __________________. 29. The ________________ theory of matter states that all particles of matter are in constant motion. 30. In Rutherford’s experiments, some of the _______________ aimed at gold atoms bounced back, suggesting that a solid mass was at the center of the atom. 31. You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the ________________ melting point. 32. A flight simulator that helps astronauts prepare for a shuttle launch is an example of a(an) __________________. 33. In the symbol ■([email protected]) He, the superscript 4 is the _________________ for helium, and the subscript 2 is the ___________________ for helium.

25) Answer is: less metallic and more nonmetallic.

Electronegativity increases from left to right across a period, atoms have tendency to attract electrons.

Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.

Radioisotope has an unstable atomic nucleus and emit energy and particles when it changes to a more stable form.

Francium (Fr) is element with atomic number 87 (87 protons and 87 electrons).

Boiling is the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.

The Celsius scale was based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atm pressure.

There are two types of reaction:

1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).

2) exothermic reaction (chemical reaction that releases more energy than it absorbs).

For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.

The average kinetic energy of molecules depends on the temperature.

As temperature increases, molecules gain more energy from surrounding and move faster.

Kinetic energy (standard unit is the joule J) depends on speed of the molecule.

Solid gains kinetic energy to become a liquid and then becomes a gas.

This was famous Rutherford’s Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles.

Rutherford observed the deflection of alpha particles on the photographic film.

Alpha particles are helium atom particles, consist of two protons and two neutrons.

According to Rutherford model of the atom: atoms have their charge concentrated in a very small nucleus.

For example, calcium oxide.

Calcium oxide (CaO) has ionic bonds between calcium cations (Ca²⁺) and oxygen anions (O²⁻).

Because it has strong ionic bonds, it has high melting point (around 2600°C).

Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).

32) Answer is: a scientific model.

A scientific model is a representation of an idea, an object, a process or a system that is used to describe and explain phenomena that cannot be experienced directly.

33) Answer is: the superscript is mass number and the subscript is atomic number.

Atomic number(Z) is the number of protons, which is characteristic of a chemical element..

Mass number (A) is the total number of protons and neutrons in a nucleus.

Categories

## In which situations is gravitational potential energy present? Check all that apply. A person walks up a flight of stairs. A person runs across a room. Wind blows against a steel table anchored to the ground. Wind lifts a balloon into the air. A weightlifter holds a barbell on the ground. A weightlifter holds a barbell straight overhead

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 less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.

2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby  creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.

3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance  can be dissolved in polar solvents only.

4) It is due to property of surface tension. Property  of surface tension results due to molecules of water near the surface experiencing a  net downward  force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.

Categories

## N her job as a flight attendant, courtney must be on her feet for long periods of time, lift baggage and push food carts, and spend a lot of time in crowded, poorly ventilated, noisy jets. courtney experiences high levels of ____ demands on her job. task role interpersonal physical ambiguous

N her job as a flight attendant, courtney must be on her feet for long periods of time, lift baggage and push food carts, and spend a lot of time in crowded, poorly ventilated, noisy jets. courtney experiences high levels of ____ demands on her job. task role interpersonal physical ambiguous

Categories

## “Simile” by N. Scott Momaday What did we say to each other that now we are as the deer who walk in single file with heads high with ears forward with eyes watchful with hooves always placed on firm ground in whose limbs there is latent flight Source: Momaday, N. Scott. “Simile.” The Language of Literature. New York: McDougal Littell, 2006. 265. Print. Which of the following techniques does this poem use? I. simile II. sensory imagery III. allusion I and II I and III II and III I only[i and ii ] is the answer just doing this so people know that answer when they are looked up

|Q| Why did people trust Bernie Madoff? |A| Our research suggests that Madoff may have deliberately or inadvertently taken advantage of the automatic trust process regardless of whether his family members and business associates were victims or confederates. Even if he didn’t seem trustworthy, the fact that his closest relatives and associates invested with him could have provided a subtle, non-conscious signal that he was actually trustworthy. After all, foxes never prey near their dens, and thieves only steal far from their homes. Additionally, the constant associations of Madoff’s name with all sorts of philanthropic works, and other subtle cues, may also have encouraged people to trust when they shouldn’t have.

To explore trust, we did an experiment that used common cues naturally associated with people’s previous trusting or distrusting relationships–the names of their friends. We used the names of our research participants’ friends (or enemies) to subliminally prime them before they had a chance to trust or not trust someone they had never met.

In our simulation, the participants saw their friends’ names repeatedly, for fractions of a second, so briefly that they could not recognize them, before they played the classic Trust Game. In the game, they each started with \$5 and could send any part of it, from nothing to all \$5, to another participant whom they would never meet. The ”receiver” (who didn’t actually exist) would have full knowledge of the sender’s endowment and the amount the sender had sent.

The participants understood that the receiver would be getting three times the amount they sent and would then freely choose how much of the tripled amount to return to the senders. The receiver could send back anything from nothing to the entire tripled amount. In this boiled-down interaction, sending money was risky but increased joint gain; this accorded with the common definition of trusting behavior–a willingness to accept vulnerability based on positive expectations of another’s intention or behavior that is not under one’s control.

The results were stunning. After seeing subliminal presentations of names of people they liked or people they trusted, our participants trusted anonymous strangers by sending them an average of nearly 50% more than people who saw similar presentations of names of people they didn’t like.

In addition, nearly 50% of the participants who saw–albeit unconsciously–names they liked or trusted sent their entire endowments to strangers, compared with 15% of the participants who were subliminally primed with names of people they distrusted. These subliminal cues also increased their expectations that the stranger would reciprocate their trust by responding in ways that would best serve their interest.

The automatic trust process that this reveals has important implications for investors, consumers and business executives. Business relationships form at an increasingly rapid pace, and trust-related choices, such as financial investment decisions, can be made with the click of a mouse. People who can gain financially from others’ trust can deliberately or inadvertently take advantage of this process.

This same process can also increase expectations of reciprocity. People in our studies who were subliminally primed by trust-related cues also expected that their interaction partners would be more trusting in return. Thus if you take advantage of the automatic trust process, you may be penalized in the future if you don’t meet the higher, subliminally induced expectations of those who trust you. It seems clear, even without addressing the potential moral issues that arise, that people who try to stimulate automatic trust for their own benefit should ensure that they have the means and the desire to reciprocate if they want to enjoy long-term success.In some situations, everyone can benefit from an automatic trust. When subliminally activated trust is not intentionally exploited, it can lead to an increase in the likelihood of mutually beneficial trust, much like a self-fulfilling prophecy. In a classic 1977 experiment conducted by the social psychologist Mark Snyder and his colleagues, participants behaved in a more friendly and trustworthy manner after they interacted with others who had been led to believe that they were friendly and trustworthy. Thus, the subliminally activated trust may help boost the mutual trust development process and lead to mutual benefits that wouldn’t be attained without it. Put simply, our findings suggest that trust may not always develop via an incremental, evaluative process. Social and relational cues may have a strong but subtle impact on people’s important financial and management choices. Understanding the non-conscious nature of this process can help you take advantage of its benefits while avoiding its downsides–and avoiding the next Bernie Madoff, too.