Questions and answers by

dully

Questions (196)

Newton's First Law Quick Check5 of 55 of 5 Items Question A pushing force of 7 N to the right is applied to a book on a table. A
1. 1 answer
2. 106 views
An object that is stationary is the result of what kind of force(s)?(1 point)Responses net forces net forces balanced forces
1. 1 answer
2. 189 views
According to Newton’s First Law of Motion, an object in motion will stay in at the same speed and direction unless acted upon
1. 1 answer
2. 107 views
Select the correct set builder notation for the phrase: "The set of all y-values such that y is greater than or equal to -3."(1
1. 1 answer
2. 89 views
Select all representations for the domain of a function given by elevation (in feet) at or above sea level.(2 points)Responses
1. 1 answer
2. 89 views
The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain 7,500 years?a 25% b 1.5625% c
1. 1 answer
2. 99 views
Examine your graph plots.Is the rate constant over time or does it vary over time? Theoretically, yes it is constant, but
1. 1 answer
2. 97 views
Examine your graph plots.Is the rate of the number of m-sides produced over time linear or non-linear? Linear; it is more of a
1. 1 answer
2. 139 views
What is the half-life of Candium? (i.e., What number of shakes are necessary to reduce the radioactive members to one-half?)a 6
1. 1 answer
2. 99 views
How much of a radioactive element becomes stable in ONE half-life?a Half of the original amount of atoms b None of the atoms
1. 1 answer
2. 73 views
In Chapter 9, of The Red Badge of Courage, what is revealed to be the meaning of a “red badge of courage”?(1 point)
1. 1 answer
2. 95 views
Choose the vocabulary term that best completes the sentence below.“Johnny,” said his mother, “just because you lost your
1. 1 answer
2. 75 views
Which of the following is a correct statement about folk cultures as related to sustainability?(1 point) Responses Culture can
1. 1 answer
2. 136 views
Folk cultures are spread primarily by(1 point) Responses contagious diffusion. contagious diffusion. hierarchical diffusion.
1. 3 answers
2. 117 views
Distinctive forms of football (from association football or soccer) developed in the United States, Canada, and Australia as a
1. 1 answer
2. 90 views
The distribution of the subjects of art in the Himalayas shows how folk cultures(1 point) Responses always include paintings of
1. 1 answer
2. 85 views
Americans' preferences for beverages and snacks(1 point) Responses vary according to what is produced locally. vary according to
1. 1 answer
2. 91 views
Hip hop music demonstrates an interplay between globalization and local diversity because(1 point) Responses it is a form of
1. 1 answer
2. 97 views
Cultural diversity is promoted by(1 point) Responses the relative isolation of a group from others. the relative isolation of a
1. 1 answer
2. 70 views
In recent decades, popular customs have most frequently originated in(1 point) Responses more developed countries. more
1. 1 answer
2. 152 views
Which of the following is true?(1 point) Responses Culture can be defined as a repetitive act that a group performs until it
1. 1 answer
2. 93 views
Which of the following is true?(1 point) Responses Culture can be defined as a repetitive act that a group performs until it
1. 1 answer
2. 87 views
Looking at the periodic table, determine the number of valence electrons present in Nitrogen (N).a 6 b 3 c 5 d 15
1. 1 answer
2. 83 views
When balancing a chemical equation, which of the following can be changed?Test Studying GIF by Ben Stillman a the mass b the
1. 1 answer
2. 91 views
If 50 g of Magnesium(Mg) is reacted with 30 g of Bromine(Br), what is the mass of the products?a 30 g b 20 g c 50 g d 80 g
1. 1 answer
2. 75 views
Match the missing coefficient to the correct number of molecules so that the equation adheres to the conservation of mass.(X)N2
1. 1 answer
2. 115 views
In the balanced chemical equation, below, determine what the coefficient and the subscript represent in 4CO2.Choose ALL the
1. 1 answer
2. 99 views
Please review this model chemical reaction: A + 2B ---> C + 4DWhich of the above represents the products? Select ALL correct
1. 1 answer
2. 92 views
What type of reaction is displayed below?AgCl + KBr → KCl + AgBr a synthesis b decomposition c single replacement d double
1. 1 answer
2. 92 views
Match the following scenario to the type of change.Column A 1. burning fuel: burning fuel 2. cutting paper: cutting paper 3.
1. 1 answer
2. 96 views
A reaction that produces heat is an endothermic reaction.True False
1. 1 answer
2. 169 views
The chemical equation for the reaction between magnesium (Mg) and hydrochloric acid (HCl) is shown.Mg + 2HCl → MgCl2 + H2
1. 1 answer
2. 104 views
A chemist is trying to get two substances to react, but he is unsuccessful. He knows that the two substances should react with
1. 1 answer
2. 156 views
Determine if the factors listed below will increase or decrease the rate of a chemical reaction.Column A 1. Decrease the
1. 1 answer
2. 106 views
Match the state of matter to its description.Column A 1. particles are tightly packed and vibrate in place; definite shape and
1. 1 answer
2. 121 views
Are the following examples of chemical or physical changes?Column A 1. rusting metal: rusting metal 2. slicing bread: slicing
1. 1 answer
2. 108 views
Sally is doing an experiment in chemistry class where she mixes two substances together. When the tow substances react, she
1. 1 answer
2. 85 views
Looking at the periodic table, determine the charge of Fluorine (F) will make when it bonds with other atoms.a +2 b +1 c -1 d -2
1. 1 answer
2. 85 views
What type of reaction is shown below?2 Na + Cl2 → 2NaCl a Decomposition b Single displacement c Combustion d Synthesis
1. 1 answer
2. 84 views
Determine whether the statement is true or false.The picture chemical reaction is balanced: 1n2 + 3h2->2nh3
1. 1 answer
2. 130 views
Match the following equations to the type of reaction.Column A 1. Synthesis: Synthesis 2. Single replacement: Single replacement
1. 1 answer
2. 198 views
Using what you know about the trend of electronegativity on the periodic table, which of the following elements would be the
1. 1 answer
2. 82 views
Match the state of matter to its description.Column A 1. particles are tightly packed and vibrate in place; definite shape and
1. 1 answer
2. 158 views
Match the reaction type to its description.Column A 1. energy is a reactant: energy is a reactant 2. energy is a product: energy
1. 1 answer
2. 175 views
In an endothermic reaction, energy is released.True False
1. 1 answer
2. 77 views
Increasing the temperature will increase the reaction rate.True False
1. 1 answer
2. 90 views
According to the Law of Conservation of Mass, chemical equations do not have to be balanced.True False
1. 1 answer
2. 77 views
In the following equation, how many atoms of oxygen are in the products?C2H8 + 4 O2 → 2 CO2 + 4 H2O
1. 1 answer
2. 101 views
Balance the following equation:PbBr2 + Al2O3 → PbO + AlBr3
1. 1 answer
2. 127 views
Balance the following equation:C(s)+o2(g)->co3(g) a 2, 1, 1 b 2, 3, 2 c 1, 1, 1 d 3, 3, 2
1. 1 answer
2. 69 views
Balance the following equation:Cl2 (g) +AlI3(aq)->I2(aq)+AlcI(aq) a 2, 1, 3. 1 b 2, 3, 3, 2 c 3, 2, 3, 2 d 1, 1, 1, 1
1. 1 answer
2. 66 views
Chemical equations must be balanced because:a mass can neither be created nor destroyed. b the mass of the reactants is always
1. 1 answer
2. 83 views
Match the parts of the following chemical equation to the correct description.Column A 1. Cl2 + AlI3 : Cl2 + AlI3 2. I2 + AlCl3
1. 1 answer
2. 92 views
What does the 2 in H2O mean?a There are 2 molecules of H2O b There are 2 atoms of oxygen c There are 2 atoms of hydrogen
1. 1 answer
2. 77 views
What's the appropriate domain?Choose 1 answer: Choose 1 answer: (Choice A) 2000 ≤ � ≤ 2010 2000≤y≤20102000, is less
1. 1 answer
2. 67 views
H(y)H, left parenthesis, y, right parenthesis models the leading number of home runs for season� yy of the National League
1. 1 answer
2. 117 views
What's the appropriate domain?Choose 1 answer: Choose 1 answer: (Choice A) 5 ≤ � ≤ 1000 5≤w≤10005, is less than or
1. 1 answer
2. 71 views
Aiden is a spice trader. He sells any amount of cumin seeds from1 11 kilogram to 1000 10001000 kilograms. He charges $ 5
1. 1 answer
2. 88 views
What made the specific candy a good example?a The candy has two sides to represent parent and daughter atoms after the decay
1. 1 answer
2. 124 views
Why were candies used for this lab? (Replace the word “candy” with whatever you chose to use)a Candy simulates how atoms
1. 1 answer
2. 104 views
Which is the BEST definition of Half-Life?a The half-life of a substance or element is the amount of time it takes for half of
1. 1 answer
2. 266 views
3 of 33 of 3 ItemsQuestion Choose the vocabulary terms that best complete the sentence below. “The little girl
1. 1 answer
2. 140 views
Which of the following is NOT an element of plot?(1 point) Responses resolution resolution exposition exposition exhibition
1. 1 answer
2. 128 views
True or false: The fighting in Chapter 5, of The Red Badge of Courage, was limited to Henry’s location.(1 point) Responses
1. 1 answer
2. 141 views
Which equation shifts an exponential function 3 units down? (1 point)Responses y = 2^x +5 y = 2^x −3 y = 2^x +3 y = 2^x −4
1. 1 answer
2. 59 views
Which of the following equations would change the y-intercept of the exponential function from (0, 1) to (0, −3)?(1 point)
1. 1 answer
2. 107 views
QuestionHow do you reflect a function across the x-axis (flip it upside down)? Responses Subtract a number larger than 10
1. 1 answer
2. 115 views
Algebra A Unit 5 Sample Work DUE 10/214 of 1514 of 15 Items Question The function pictured has the form of y=k(x^2) . What is
1. 1 answer
2. 243 views
The function h(t)=−16t^2+75trepresents the height of a ball thrown up into the air after t seconds. What does h(5) represent?
1. 1 answer
2. 94 views
The function C(d)=8d+2represents the cost to order a box of donuts d, including the flat rate shipping charge. Does finding
1. 1 answer
2. 104 views
The function C(d)=8d+2represents the cost to order a box of donuts d, including the flat rate shipping charge. What is the cost
1. 1 answer
2. 104 views
Which of the following values could be used for x and would cause the following relation to NOT be a function?{(2,3), (-2,6),
1. 1 answer
2. 49 views
A griot was a travellingA. A. Poet B. B. Musician C. C. storyteller D. D. All of the above
1. 1 answer
2. 91 views
What major geographical feature was just to the north of the ancient African empires?A. A. Nile Rive B. B. Sahara Desert C. C.
1. 1 answer
2. 83 views
What ruler of Mali is famous for his lavish trip to Mecca?A. A. Shaka Zulu B. B. Ramses II C. C. Mansa Musa D. D. Hannibal
1. 1 answer
2. 82 views
What did 'ghana' mean in the language of the people of Ghana? A. Koumbi Saleh B. Gao C. Timbuktu D. Mogadishu A. Koumbi Saleh B.
1. 1 answer
2. 100 views
What was the capital city of the Songhai Empire?A. A. Koumbi Saleh B. B. Gao C. C. Timbuktu D. D. Mogadishu
1. 1 answer
2. 94 views
What city of Mali was considered a center of learning and education?A. A - Koumbi Saleh B. B - Goa C. C - Timbuktu D. D -
1. 1 answer
2. 70 views
What wa the capital city of the EMpire of Ghana?A. A - Koumbi Selah B. Goa C. Timbuktu D. Mogadishu
1. 1 answer
2. 117 views
What river ran along much of the Songhai Empire?A. A - Congo B. B - Niger C. C - Nile D. D - Yangtze
1. 1 answer
2. 74 views
What two resources helped the Empire of Ghana to become wealthy?A. A - Salt and Gold B. B - Silver and Diamonds C. C - Fish and
1. 1 answer
2. 77 views
What was the title of the ruler of the Empire of Mali?
1. 1 answer
2. 65 views
A similarity between the ancient African kingdoms and Mali, Ghana, and Songhai is that these kingdoms..A. A - Limited the power
1. 1 answer
2. 106 views
Analysis of migration trends to the United States during the early twentieth century shows that most migrants came from which
1. 1 answer
2. 107 views
Which answer BEST describes why guest workers can be a problem for many countries?(1 point) Responses They are a problem because
1. 1 answer
2. 97 views
Which description indicates the LEAST likely motive for European hostility to migrants today?(1 point) Responses fear that a
1. 1 answer
2. 123 views
Which part or region of the United States has recently witnessed the largest interregional migration?(1 point) Responses the
1. 1 answer
2. 183 views
According to the map, the decade that witnessed the least movement of the United States’ center of population was the(1 point)
1. 1 answer
2. 156 views
The process whereby a high-skilled professional migrates to the United States and then uses the family reunification provision
1. 1 answer
2. 88 views
Which of the following BEST describes intraregional migration patterns?(1 point) Responses Intraregional migration patterns in
1. 1 answer
2. 151 views
Which of the following is NOT one of Ravenstein’s laws explaining human migration?(1 point) Responses The majority of migrants
1. 1 answer
2. 93 views
Which of the following is an example of forced migration happening because of environmental changes to the current landscape?(1
1. 1 answer
2. 90 views
Which factor BEST explains the recent increase in the number of undocumented teenage immigrants in the United States from
1. 1 answer
2. 250 views
Which statement best describes the effect of radioactive decay on a nucleus?(1 point)Responses The resulting nucleus is less
1. 1 answer
2. 101 views
The process of radioactive decay is unpredictable and irreversible. Which option would be an appropriate model of the
1. 1 answer
2. 94 views
Which option would be an appropriate model of nuclear fission?(1 point)Responses taking a teaspoon of sugar from a bowl taking a
1. 1 answer
2. 79 views
Which phrase describes a nuclear chain reaction?(1 point)Responses a reaction in which particles spontaneously emit radiation a
1. 1 answer
2. 116 views
Modeling Nuclear Processes Quick Check1 of 51 of 5 Items Question Which phrase best describes nuclear fusion?(1 point) Responses
1. 1 answer
2. 113 views
What does the vocabulary word purl mean?(1 point) Responses to spin in place to spin in place a lustrous gem found in sea
1. 1 answer
2. 121 views
When considering why Henry was irritated with his mother in The Red Badge of Courage, which reading strategy would be most
1. 1 answer
2. 142 views