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jojo

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Questions (201)

calculate the Henry's law proportionality constant for N2?partial pressure at 1 atm=0.78 atm solubility at 1 atm= 5.3 x 10^-3
1. 1 answer
2. 632 views
The vapor pressure of ethanol is 54.68 mm Hg at 25oC.How many grams of chlorophyll , C55H72MgN4O5, a nonvolatile, nonelectrolyte
1. 3 answers
2. 1,550 views
what is the initial rate of the reaction, in mol/(L*s), under theswe conditions?Concentration=0.40 mol/L
1. 1 answer
2. 445 views
when you are comparing two sets of data, and one set is strongly skewed and the other is symmetric, which measures of the center
1. 5 answers
2. 3,491 views
1) one indicator of a outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value
1. 2 answers
2. 1,200 views
a hat contains a number od cubes: 15 red, 10 white, 5 blue and 20 black,20 years gone and i am back again. one cube at random.
1. 3 answers
2. 728 views
A scientist measures the standard enthalpy change for the following reaction to be -172.4 kJ :2SO2(g) + O2(g) 2SO3(g) Based on
1. 2 answers
2. 1,317 views
i'm stumped on how to write this in mathematical form. it says the rate increased by a factor of 2000, I am supposed to
1. 5 answers
2. 407 views
a ship leaves point A and travels 60 miles due east, then travels northward 59 degrees to point C, and travel 60 miles to point
1. 2 answers
2. 744 views
if 15.95 g dissolves in 100ml of water what will be the solubility in g/ml expressed to the proper number of significant
1. 1 answer
2. 468 views
what part of the meniscus must be read to accurately record the volume of a liquid in a graduated cylinder??? the lowest of the
1. 1 answer
2. 466 views
how many significant figures are in the measurement 0.002 ml?2??
1. 4 answers
2. 1,035 views
is the formation of an aqueous solution with water, a physical or chemical property?physical..... because the substance doesn't
1. 3 answers
2. 763 views
how many moles of hydrogen would be produced from 16 moles of Na?/xH2mol/16Namol??/
1. 1 answer
2. 290 views
if you are given 25 grams of H2O how many grams of H2 can you produce???i am lost... help
1. 1 answer
2. 324 views
If a 0.01M Mn(NO3)2 solution has an ammonia concentration of 6.0M, would a precipitate form? Calculate the ion product and
1. 2 answers
2. 628 views
Brooke and Georgia are neighbors. Each have 40 hours per week. Brooke needs 5 hours to paint a beautiful picture and 2 hours to
1. 2 answers
2. 920 views
solve for equation x(give answer in radians using exact values only.2sin(x)+cot(x)-csc(x)=0
1. 1 answer
2. 411 views
give answer in radians for the following equation:sin(x)+2sin(x)cos(x)=0
1. 1 answer
2. 321 views
Give a list of solutions, in the interval [0, 360°), in degrees, of the equation 2cos^24θ + 5 cos 4θ = 3.
1. 2 answers
2. 615 views
Some equations cannot be solved by symbolic manipulations. Use a graph to find all solutions of the equation sin 8x = 2x - 1.
1. 1 answer
2. 379 views
consider the polar equationr=7 cos(θ+ pi divided by 4) A) change the equation to rectangular coordinates. B) by completing the
1. 2 answers
2. 638 views
q = 5,000 - 100ptc= 10,000 - 10q plot the demand curve marginal revenue curve marginal cost curve profit maximising price,
1. 1 answer
2. 453 views
1THE COPPERBELT UNIVERSITY SCHOOL OF BUSINESS BSP 110 PRINCIPLES OF ECONOMICS 2015 ASSIGNMENT DUE DATE: 4th January 2016 at 10am
1. 2 answers
2. 833 views
1THE COPPERBELT UNIVERSITY SCHOOL OF BUSINESS BSP 110 PRINCIPLES OF ECONOMICS 2015 ASSIGNMENT DUE DATE: 4th January 2016 at 10am
1. 1 answer
2. 496 views
A house is 80.0 ft long and 22 ft wide, and has 8.0 ft high ceilings. What is the volume of the interior of the house in cubic
1. 1 answer
2. 470 views
The base of a pyramid covers an area of 13.0 acres (1 acre = 43,560 ft2) and has a height of 481 ft. If the volume of a pyramid
1. 4 answers
2. 3,377 views
A ladder 8.70 m long leans against the side of a building. If the ladder is inclined at an angle of 69.0° to the horizontal,
1. 3 answers
2. 580 views
In a certain right triangle, the two sides that are perpendicular to each other have lengths h = 4.40 m and b = 8.70 m. What is
1. 1 answer
2. 382 views
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 2.70 s.(a)
1. 3 answers
2. 3,058 views
A jet plane lands with a speed of 81 m/s and can accelerate at a maximum rate of −5.00 m/s2 as it comes to rest.(a) From the
1. 2 answers
2. 1,117 views
A ball is thrown vertically upward with a speed of 19.0 m/s.(a) How high does it rise? (b) How long does it take to reach its
1. 2 answers
2. 531 views
Which Enlightenment thinker wrote that people in society are bound to one another by an implicit 'social contract'?A. Voltaire
1. 3 answers
2. 972 views
1. WRITE A PROGRAM TO CALCULATRE THE AREA OF A RECTANGLE OF LENGTH =5 CM AND BREADTH=8CM.2. CALCULATE THE PRICE OF AN ITEM
1. 3 answers
2. 1,108 views
Two persons each hold the end of a 20 ft long jumping rope. How far apart should they stand if they hold the rope 4.5 ft off the
1. 3 answers
2. 653 views
Two overlapping identical circles have radii of 6.17. The area of their overlapping sections is 42.7. How far apart are the
1. 2 answers
2. 851 views
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the
1. 1 answer
2. 435 views
A partide of mass m moves along a trajectory given by x= a cos δ1 tand y = asinδ2 t . Find rand y component of the force
1. 1 answer
2. 392 views
A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched off, it rotates through 54.0
1. 3 answers
2. 3,725 views
A rotating wheel requires 6.00 s to rotate 27.0 revolutions. Its angular velocity at the end of the 6.00-s interval is 97.0
1. 2 answers
2. 769 views
A 50.0-kg child stands at the rim of a merry-go-round of radius 1.65 m, rotating with an angular speed of 3.00 rad/s.(a) What is
1. 1 answer
2. 782 views
An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.4 m on a frictionless
1. 2 answers
2. 851 views
Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown
1. 3 answers
2. 902 views
In a popular amusement park ride, a rotating cylinder of radius R = 3.10 m is set in rotation at an angular speed of 4.20 rad/s,
1. 4 answers
2. 1,367 views
A 3.25-kg object is attached to a vertical rod by two strings as shown in the figure below. The object rotates in a horizontal
1. 2 answers
2. 529 views
A person bending forward to lift a load "with his back" (Figure (a)) rather than "with his knees" can be injured by large forces
1. 3 answers
2. 965 views
A 1400-N uniform boom at ϕ = 70.0° to the horizontal is supported by a cable at an angle θ = 20.0° to the horizontal as
1. 3 answers
2. 1,397 views
In a circus performance, a large 5.0 kg hoop of radius 3.0 m rolls without slipping. If the hoop is given an angular speed of
1. 3 answers
2. 1,840 views
The system of small objects shown in the figure below is rotating at an angular speed of 2.0 rev/s. The objects are connected by
1. 3 answers
2. 1,019 views
A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless
1. 2 answers
2. 985 views
A man jogs 8 km/h for 5 hours. How far did the man jog?
1. 1 answer
2. 364 views
While working on the roof of his house, John leans a 15 foot ladder against a second story window. If the distance on the ground
1. 4 answers
2. 2,680 views
how do scientists explain the fact that some landforms that are far apart and separated by oceans appear to be related?
1. 2 answers
2. 581 views
Multiplying 2.1 and the number r results in 6.174.What is the value of r? Drag and drop the correct number into the box so that
1. 2 answers
2. 788 views
How long will it take a bird traveling at an average speed of 12 mph to travel 202 miles while flying south for the winter
1. 2 answers
2. 668 views
The ratio of the length to width of a rectangle is 5:8. If the width of the rectangle is 42 inches, what is the perimeter of the
1. 2 answers
2. 703 views
What does this prompt mean, I don't understand it. In the transition from a foraging lifestyle to that of civilization humans
1. 2 answers
2. 543 views
Why did the Framers of the Constitution set up the legislative branch so complexly?
1. 1 answer
2. 926 views
What is the purpose of reasons in a persuasive essay?(1 point)They are opinions based on evidence. They are facts used to
1. 10 answers
2. 4,556 views
a triangle has side lengths of 9cm, 18cm, and 12cm. Classify it as acute, obtuse, or right.
1. 2 answers
2. 563 views
Lesson 8: Impact of Energy Use
1. 1 answer
2. 212 views
The rate of a chemical reaction normally ____________.
1. 1 answer
2. 131 views
Which of the following describes active voice?(1 point)voice used in writing in which the subject of the sentence receives the
1. 7 answers
2. 368 views
solving systems of equations subtraction6x-y=-4 2x+2y=15
1. 1 answer
2. 91 views
What does a dot (•) do to the value of a note or rest?(1 point) Responses It shifts the weight to a normally unaccented note.
1. 10 answers
2. 62 views
Simon lost 16 deliveries in August, 9 deliveries in September, and 6 deliveries in October. What integer would represent the
1. 11 answers
2. 92 views
How does self-esteem affect the way you behave?(1 point) Responses With low self-esteem you are generally a very positive person
1. 2 answers
2. 119 views
To achieve self-actualization, you must fulfill(1 point) Responses the goals you set. the goals you set. the hierarchy of needs.
1. 2 answers
2. 170 views
What is a way to boost your self-esteem?(1 point) Responses Worry about other's opinions. Worry about other's opinions. Exhibit
1. 2 answers
2. 77 views
Which of the following is an example of the relationship between culture and geography?(1 point) Responses A civilization
1. 4 answers
2. 64 views
Examine the map.A world map of latitude and longitude lines is shown. The lines of latitude start at zero at the center of the
1. 2 answers
2. 115 views
Which of the following is a reason why historians may want to consider opinions as well as facts reported by a source?(1 point)
1. 4 answers
2. 94 views
The water cycle includes
1. 2 answers
2. 63 views
How are equal-area projections of Earth inaccurate?(1 point) Responses There are distortions near the center of the map. There
1. 2 answers
2. 104 views
How are equal-area projections of Earth inaccurate?There are distortions near the center of the map. Directions and the shapes
1. 2 answers
2. 79 views
What causes earthquakes?(1 point) Responses Blocks of crust slide against one another, often at plate boundaries. Blocks of
1. 5 answers
2. 178 views
Which of the following climate conditions would best support a tropical rain forest ecosystem?(1 point) Responses dry air and
1. 2 answers
2. 105 views
Which is one advantage of maps over aerial photographs as a way of understanding Earth’s surface?(1 point) Responses There is
1. 10 answers
2. 211 views
Select the correct response from the drop-down menu.(1 point)The process of democratization over the last 200 years has resulted
1. 11 answers
2. 571 views
If the demand for a good or service increases, how will prices affect supply?(1 point) Responses Rising prices will boost
1. 4 answers
2. 162 views
Which is a right that both citizens and non-citizens in the U.S. share?(1 point) Responses the right to vote the right to vote
1. 4 answers
2. 94 views
Which of the following is one way in which an embargo differs from a tariff?(1 point) Responses It allows for free trade of
1. 4 answers
2. 128 views
Why is a federal system of government more complex than a unitary system?(1 point) Responses Power is divided into many levels.
1. 7 answers
2. 112 views
Which of these causes of migration is an example of a pull factor?(1 point) Responses warfare warfare poverty poverty job
1. 4 answers
2. 81 views
Which is the difference between a renewable resource and a nonrenewable resource?(1 point) Responses A renewable resource cannot
1. 2 answers
2. 89 views
How do countries seek to increase economic development?(1 point) Responses decrease education and increase tariffs decrease
1. 7 answers
2. 126 views
Which of the following correctly pairs a branch of the U.S. government and its power?(1 point) Responses legislative: interprets
1. 2 answers
2. 169 views
Which of the following is an example of the relationship between culture and geography?(1 point) Responses A civilization
1. 2 answers
2. 88 views
Which field of research answers questions about how people lived in different places and times by focusing on human development
1. 4 answers
2. 113 views
Artists can use color, line, and shape to represent emotions and feelings. Image A uses bright colors in the piece. Image B uses
1. 7 answers
2. 82 views
It may be difficult to express how you feel to others. Many times, an image can tell more than you can. What emotion does this
1. 4 answers
2. 95 views
What is the role of the government in a mixed economy?
1. 7 answers
2. 137 views
Which option is the definition of analogy?(1 point)Responses a word that has the opposite meaning of another word a word that
1. 10 answers
2. 142 views
Which option describes denotation?(1 point)Responses the dictionary definition of a word the dictionary definition of a word the
1. 2 answers
2. 88 views
Which option describes a neutral connotation?(1 point)Responses a good feeling associated with a word a good feeling associated
1. 2 answers
2. 89 views
Which word has a similar meaning but a more neutral connotation than the word noisy?(1 point)Responses active active powerful
1. 7 answers
2. 125 views
In A four-four time signature is shown with a four stacked above another four. time, what note gets the beat?(1 point) Responses
1. 7 answers
2. 126 views
How does self-esteem affect the way you behave?(1 point) Responses With low self-esteem you are generally a very positive person
1. 10 answers
2. 186 views
Which phrase best describes frost wedging?(1 point)Responses a type of physical weathering that occurs due to temperature
1. 7 answers
2. 140 views
what is a Netflix
1. 25 answers
2. 119 views

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