Questions Asked on
February 15, 2018

Chemistry
How many moles of carbon dioxide would be produced if 0.28 moles of propane, C3H8, were combusted? C3H8 + 5 O2 > 3 CO2 + 4 H20
asked by Emileigh 
Calculus
For what values of k does the series ∑n=1 to infinity (11/(2k^2 + 3))^n converge? I think this is k < 2 and k > 2.
asked by Anonymous 
Astronomy
If a star is receding (moving away from us) at a speed of 1.8% of the speed of light, at what wavelength would a spectral line with a laboratory wavelength of 422 nm be observed? Express your answer in nm to the nearest 0.1 nm.
asked by Xenon 
Astronomy
Star A has 3 times the surface temperature and 0.6 times the radius of Star B. What is the ratio of the luminosity of Star A to the luminosity of Star B? (Indicate your answer to an accuracy of 0.1).
asked by Xenon 
Astronomy
At what wavelength will the spectrum of a perfect black body with a temperature of 8,009 Kelvin peak, assuming that a perfect black body at 6000 Kelvin has a spectrum that peaks exactly at 500 nm? Express your answer in nm to the nearest whole nm. (Use the
asked by Xenon 
Astronomy
When used at a wavelength of 1 micron, a telescope can resolve angles as small as 0.1 seconds of arc. How small an angle could the telescope resolve when used at a wavelength of 5 microns? a. 0.02 seconds of arc b. 0.004 seconds of arc c. 0.5 seconds of
asked by Xenon 
Astronomy
In the laboratory, an atom emits a spectral line at a wavelength of 400 nanometers. In the spectrum of a star, the same spectral line is found to have a wavelength of 410 nanometers. What can be said about the star? a. It is hotter than the Sun. b. It is
asked by Xenon 
Astronomy
A star is moving away from an observer at 1% of the speed of light. At what wavelength would the observer find an emission line which would occur at a wavelength of 6000 Angstroms if the star were at rest? a. 6060 Angstroms b. 6010 Angstroms c. 6000
asked by Xenon 
Astronomy
A TV satellite broadcasts at a frequency of 5000 MHz, (1 MHz = 1 million Hertz). What is the wavelength of this radiation? a. 1000 cm b. 5 million centimeters c. 6 cm d. 0.3 cm
asked by Xenon 
Astronomy
The same telescope is used to obtain an image using light of the following wavelengths. Which of the images will have the poorest angular resolution? a. blue b. yellow c. red d. infrared
asked by Xenon 
math
A spool of rope contains 73 yards of rope. How many 4foot pieces of rope can be cut from the spool? How much rope is left over? There are nothing pieces of 4foot rope that can be cut from the spool. (Type a whole number.)
asked by rod 
Calculus Please Help
How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The
asked by Daniel 
Chemistry
One liter of a buffer composed of 1.2 M HNO2 and 0.8 M NaNO2 is mixed with 400 mL of 0.5 M NaOH. What is the new pH? Assume the pKa of HNO2 is 3.4.
asked by anon 
MATH
does anybody know how e^−b(3.55 s)/(0.310 kg) = 0.750? I don't understand how it could equal .750
asked by Anonymous 
physics
A small sphere of mass m = 0.520 kg is dropped from rest into a viscous liquid in which the resistive force on the sphere can be expressed as FD = −bv, and reaches onefourth of its terminal speed in 3.14 s. (a) What is the terminal speed of the sphere?
asked by joy 
Algebra 2
Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Suppose B varies directly with C and inversely with D and the cube root of A. B = 4 when A = 27, C = 2, and D = 5. Find B when C = 3, A = 64, and D = 6.
asked by Nate 
Algebra 2
Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Y varies directly with x. If y = 4 when x = 2, find y when x = 6.
asked by Nate 
Algebra 2
Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution The volume V of gas varies inversely to the pressure P. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be its volume under pressure of 40
asked by Nate 
Algebra 2
Jimmy is wanting to fence a rectangular area of his land along Elm Creek. He will only need to fence 3 sides. If Jimmy has 2000 ft of fencing and wants to enclose the largest possible area, determine the dimensions of the rectangular plot. Hint: Write an
asked by Nate 
Algebra 2
Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _1__ + 5 x 3
asked by Nate 
Algebra 2
Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _2___ + 4 x
asked by Nate 
math
A rubber band is stretched around the four circles (each with radius r cm). i) Show that the total length of the rubber band is given by the expression r(8+2π)cm. ii) Show that the area of the shape is given by the expression r^2(12+π) cm^2
asked by anonymous 
Chemistry
The molecules present in 5.2gms of glucose will be c6h12o6
asked by Chemistry 
Chemistry
A sample of oxygen has a volume of 205cm³ when its temperature is 22.0°C and its pressure is 30.8 kPa. What volume will the gas occupy at STP?
asked by Leti 
Physics
I am taking an online course in physics and I need to write a short paper on Analog and digital information. Below are the questions that guide me through the paper. I am having a hard time finding a website that can explain this to me. There is no text
asked by daisy 
Chemistry
How do I plot the freundlich isotherm graph given P/atm and V/cm3 data. I know that the plot is suppose to be log x/M vs log c. However, how do I get the x/m from the data and which is the c. I have already plotted the Langmuir isotherm of this data. How
asked by Sarah 
ALGEBRA I
Last spring Steve joined a health club. The club charges a onetime enrollment fee of $150.00 plus a $25.00 monthly fee. Let n represent the number of months Steve pays for membership. Which of the following best represents the domain of the situation?
asked by Libby 
Math
4 balls and 3 pen cost 12 find the 6 ball and6 pen coat
asked by Anonymous 
MATH
_DE MORGAN'S LAWS_ (a). (A n B)^c = A^c U B^c (b). (A U B)^c = A^c n B^c Please friends I need solutions to this set
asked by Simon 
social studies
What was a direct result of the United States' fear that the Soviet Union would expand is power around the world? 1)World War II 2)the Cold War 3)communism 4)the Treaty of Versailles I think #2 Thank you.
asked by Jamie 
Statistics
I'm trying to figure out which type of factorial ANOVA test to use for this data. The data is from a hypothetical study looking at whether males or females are more likely to ask questions during a seminar where people give various presentations. The
asked by Grace 
Math
Which Solid has one base that is a rectangle and four lateral surfaces that are triangles? A triangular pyramid B Cone C rectangular prism D rectangular pyramid *** Am I right?
asked by Fortnite God 
Art History
What piece of art is probably the most recognized piece of Greek sculpture? a. Aphrodite of Melos*** b. Winged Victory of Samothrace c. The Laocoon d. Boy Strangling a Goose
asked by Anonymous 
Science
Identify the process that is necessary for sexual reproduction, explain why it is necessary, and identify how this process increases genetic variation.
asked by Harper 
Health check my answer
During which stage of stress does the body adapt to the ongoing presence of the stressor A. Alarm B. Resistance C. Fightorflight*** D. Exhaustion
asked by Person 
college
f) Calculate the simple interest for a loan for $24,700, for 2 1/4 years at 3.4% interest per year. Round to the nearest cent.
asked by jeff 
Science
Meteorologist notice a low pressure Area developing over warm ocean water which type of storm is likely to form
asked by Anonymous 
math
How do i solve a set of equations that are set equal to eachother?
asked by Anonymous 
ELA
Which correctly identifies the verb and its mood in this sentence? Be careful with that dripping paintbrush. A) Verb: be Mood: indicative B) Verb: be Mood: imperative C) Verb: dripping Mood: imperative D) Verb: dripping Mood: indicative c?
asked by Dolphin 
ELA
Video Presentation Permission Form Mary O'Dell Video Broadcast Permission Form Willow High School Teacher’s Name: __________________________ Date: __________ Name of Video:____________________________________________ Video rating  G PG PG13 R NR (not
asked by Dolphin 
ELA
A Screamingly Good Science Lesson Elizabeth Kibler 1Amusement park rides give us thrills, exhilaration, and delight. If you pay attention, these rides can give you something else—a science lesson. Roller coasters are amazing rides that can twist and veer
asked by Dolphin 
Calculus
Which of the following series converge? A. ∑n=1 to infinity of 1/n^2 B. ∑n=1 to infinity of 1/n C. ∑n=1 to infinity (1)^n/(√n) I think the answer is A and C.
asked by Anonymous 
Math
1. Write a ratio and a percent for the shaded area. A. 6/25, 30% B. 3/50, 6% C. 6/25, 24% D. 3/10, 30% 2. Model 24% on a 5 x 5 grid. Cant do the answers, but if you did it please tell me! 3. Write a ratio as a percent In the seventh grade class, 19/25
asked by Please help me 
Chemistry
Consider the reaction below : P4(s) + 5O2(g) P4O10(s) How many grams of phosphorus react with 1.195 x 102 L of oxygen (O2) at STP (standard temperature and pressure) to form tetraphosphorus decaoxide?
asked by Rayan 
Algebra 2
Given the exponential function A(x) = P(1 + r)x, what value for r will make the function a decay function? r = −2.1 r = 2.1 r = 0 r = 0.1
asked by Michelle 
Aljebra
Can someone check for me thanx 16 ÷ (8)(2)12÷[62]+6÷(42) My answer is 1
asked by Jasmine 
English
1. Part Awhich pair of words best describes the speaker's attitude toward elements of nature in "wind and water and stone"? A. ignorant and uncaring B.joyful and loving C.angry and scared D.calm and accepting*** Part BWhich line from the poem best
asked by Anonymous 
Physics
2 point charges with the same magnitude (5*10^8) but opposite signs are 10m apart. What is the magnitude and direction of the force at the midpoint between the charges? I am supposed to do E=(k*q1)/r is r (distance) 10m or 5m (midpoint)
asked by Pat 
English 12
Lesson 10: The Romantic Period (17981832) Unit 7 1. In this unit, you read William Wordsworth's poems "Lines Composed a Few Miles Above Tintern Abbey," "The World is Too Much with Us," and "I Wandered Lonely as a Cloud." How are these poems representative
asked by Lirio 
Reading
The Kepler spacecraft was designed to investigate humanity last unexplored frontier the far reaches of space. The NASA space telescope looks deep into the Milky Way galaxy for the sign of habitable planet where a human can potentially thrive, in the
asked by Anonymous 
History
Which of the following is the best reason why the Civil War did not completely end racial segregation in America? 1:The Thirteenth Amendment, which ended slavery, was not ratified until a decade after the war ended. 2:The Civil War era lacked the powerful,
asked by anonymous 
history
which factors influenced the growth of the ranching industry? select all that apply. * American Indians were driven out of the North Texas Plains. * More cattle trails were developed. * Ranchers received ownership rights. * Barbed wire was invented.
asked by Anonymous 
help (Reading)
This question asks about your Independent Reading selection. You may use your reading selection to help you answer the question. Compare and contrast your Independent Reading selection with one or two other selections you have read in this unit. Support
asked by Jam Jam Jam 
Government
What can the local government do to help with a petition?
asked by SkittishKitten 
Math
I swam 10 cycles in 13.5 seconds what is my stroke rate?
asked by Rob 
Algebra
Radio signals travel at a rate 3 * 10^8 of meters per second. How many seconds would it take a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 3.6 * 10^7 meters? A.) 8.3 seconds** B.) 1.2 *
asked by Dylan 
english
write a composition three to five paragraphs
asked by rhonda 
Math
Ashley needs 4.6 yards of chain to hang some flower baskets. The chain is sold by the meter. She knows that 1 yard=0.914 meter. How many meters of chain does Ashley need?
asked by Melissa 
Math
What is the experimental probability that the next vehicle that comes on the lot will be a red car? Red White Silver Car 45 41 46 Truck 21 24 23
asked by Lisa 
English
And what shoulder and what are,/could twist the sinews of thy heart? Which of these is nearest in meaning to the word sinews as it is used in the lines above? A:Bones B:Essence*** C:Longevity D:Location I know sinew has to do with bones...but that answer
asked by anonymous 
math
why is a spheres volume to surface area ratio the lowest out of a sphere, cylinder, and a cube? this is part of how im going to do this big project im doing, and i know a sphere has the smallest one, im just not sure why
asked by . 
History
what is pericles most likely suggesting about greek government
asked by Dallas 
geometry
find the values of angles X, Y, and Z. x=91; y= 51;z=31 x=89; y=91; z=0 x=60; y=120; z=31 please HELP!!! math 7 B unit 1 geometry test!!!! anyone from Connections Academy 7th grade please help me
asked by georgia :) 
Social Studies 7
How does the strong history of immigration in the United States influence the kind of nation we have become?
asked by KitKat 
AP physics help
Two identical waves undergo pure constructive interference. How is the resultant intensity related to that of the individual waves? A. resultant intensity is half of wave intensity B. resultant intensity is same as individual wave intensity C. resultant
asked by tyger2020 
more physics....
To increase intensity of a wave by a factor of 50, by what factor should the amplitude be increased? This is also coming from the homework based on topics the video didn't cover. I know that power is proportional to amplitude squared, but what does this
asked by tyger2020 
Math
The sum of half a number and 5 is 9. What is the number?
asked by Dallas 
sience
Multiple Choice 1. At the chromosomal level, what is the difference between human males and human females? (1 point) All males have a Y chromosome, and females do not. All males have an X chromosome, and females do not. All males have 47 chromosomes, and
asked by sadgrg 
English
Which of the following transitions shows a comparison? 1)although 2)however 3)just as 4)whereas I think #3 Thanks
asked by Jamie 
Algebra
Solve the following problem: –43 + 17 = A. 60 B. 26 C. –26 D. –60
asked by Davlin 
MATH helpp!!
Find the range of the function f(x)=4x1 for the domain {1,0,1,2,3} A){5,30,7,11} B){5,4,3,2,1} C){11,7,3,1,5} D){5,1,3,7,11} Can someone help, am i right is the answer B????
asked by that emo girl! 
Math
Diego has $11 and begins saving $5 each week toward buying a new phone. At the same time that Diego begins saving, Lin has $60 and begins spending $2 per week on supplies for her art class. Is there a week when they have the same amount of money? How much
asked by Kendall Stepp 
Maths
Isosceles triangle $ABE$ of area 100 square inches is cut by $\overline{CD}$ into an isosceles trapezoid and a smaller isosceles triangle. The area of the trapezoid is 75 square inches. If the altitude of triangle $ABE$ from $A$ is 20 inches, what is the
asked by Anonymous 
A B C order
Does "brother's" come before "brothers' " in A B C order?
asked by Alice 
Science
What is the definition of energy?
asked by Roberto 
Science
If the mass of each ball were the same, but the velocity of ball A were twice as much as ball B, what do you think would happen to the final velocity of each ball after the collision? To answer this question, create a hypothesis in the form of an ifthen
asked by Anonymous2434 
SS
HOW CHINA AND JAPAN DEVELOPED MODERN ECONOMIES(400 words,5 para)
asked by help ASAP 
Spanish 1
Ana y Claudia _______ traen. (los manteles) A Nos B Lo C Las D Los
asked by Alexis 
Chem
The vapor pressure of liquid chloroform, CHCl3, is 400.0 torr at 24.1°C and 100.0 torr at 6.3°C. What is ΔHvap (in the unit of kJ) of chloroform?
asked by Abbey 
math
Abigail lives in an offcampus apartment. Some days she rides her bike to campus, other days she walks. When she rides her bike, she gets to her first classroom building 36 minutes faster than when she walks. If her average walking speed is 3 mph and her
asked by James 
World History
Which explains why Ottoman leaders began a policy of deportation and extermination of the armenians within their empire? a. they argued that Armenians were spreading antiturk propaganda among the ottoman population b. they claimed that armenians were
asked by Anonymous 
Modern World Studies
Hi! I just needed someone to check my answer on this question before I turned it in. Although they are considered an important part of Native American culture, there were no ____ in the Americas before Spanish explorers arrived. A: tomatoes (I pick this)
asked by Help please! 
math
Surface Area: 4r^2 41.25^2 S.A= 19.6 inches^2 Volume: 4/3r^3 4/3 1.25^3 V=8.2 inches^3 could someone check my math?
asked by . 
Science
1. If you are driving down the road, how do you know that the car is moving (think about your reference point)?
asked by I Dont Matter 
Math
After school, Laura babysits one child for 50 minutes. The rest for 10 minutes read for 15 minutes and play for the rest of the time write the total babysitting time the resting time and the reading time as fractions of an hour
asked by AALIYAH 
math
In a recent year, 23.3 % of all registered doctors were female. If there were 46,800 female registered doctors that year, what was the total number of registered doctors?
asked by jaykwon 
math
if we have : (x + a)^2 and (x +b)^2 what will be the general form of the square of a binomial B ?
asked by sai 
Language Arts
What is a similarity between a haiku poem and a concrete poem?
asked by Emily 
english
Fix the underlined part in the sentence. This was an important question to Americans in the eighteen century. When they were ruled by Great Britain, and it is an important question today when countries find themselves controlled by more powerful outsiders.
asked by Please check answers 
Math
The model builder has 4 pieces of balsa wood that are 4 cm,5 cm, 6 cm, and 7 cm in length. How many different combinations of 3 pieces can be used to make triangles without breaking or cutting the pieces? List the combinations as inequalities.
asked by Lucy 
english
lz help 9. Before he would build a wall, the speaker in “Mending Wall” would want to know (1 point) what he was walling in or walling out. who might be profiting from it. what his family would think of it. how effective it was going to be. ***
asked by brittany 
Math
Age Percent of listeners Degree Measure 1824 11% ??????????????
asked by Alex 
Math
Barbara makes a scale drawing of a statue using the scale 1 centimeter =5 feet. Her drawing measures 12 centimeters tall. Kyle makes a scale drawing of the same statue using the scale 1 centimeter=4 feet. How many centimeters tall is the statue in Kyle's
asked by Diana 
geometry
the perimeter of triangle B is 6 times greater than the perimeter pf triangle 6. the area of triangle B is how many times greater than the area of triangle A?
asked by perla 
Chemistry
The temperature of a lead fishing weight rises from 26 C to 38 C as it absorbs 11.3 J of heat. What is the mass of the fishing weight in grams? ( The specific heat capacity of lead is 0.128 J /g C )
asked by Jess 
Math calculus 2
A propane tank is in the shape generated by revolving the region enclosed by the right half of the graph of (4*x^2)+(64*y^2)=144 and the yaxis about the yaxis. If x and y are measured in meters find the depth of the propane in the tank when it is filled
asked by Anonymous 
Math calculus 2
Find the volume of the solid generated by revolving the region enclosed by the curves y=5*(sqrt(x)), y=0, and x=2 about the line x=9.
asked by James 
Math calculus 2
Let S be the region of the xyplane bounded above by the curve ((x^3)*y)=64, below by the line y=1, on the left by the line x=2, and on the right by the line x=4. Find the volume of the solid obtained by rotating S around (a) the x axis (b) the y axis (c)
asked by Isabella 
Math calculus 2
Find the volume of the solid generated by revolving the given region about the line x=16: y=4x,y=0,y=2,x=0.
asked by Andrew 
6thMath
You walked 2⁄15 miles from your chemistry class to your economics class at a constant speed of 0.8 miles per hour. How long did this take you?
asked by PrincessLeaya 
Math
Need some help setting this up. Thank you. A dance studio measures 150 feet by 120 feet. A scale drawing of the dance studio floor measures 10 units by 8 units. What scale was used to create the scale drawing? A) 1 unit: 8 feet B) 1 unit: 10 feet C) 1
asked by Mark 
6thMath
Dominique drove home from work at an average speed of 36 miles per hour. If the distance from her house to her workplace is 5.4 miles, how long did her commute take?
asked by PrincessLeaya 
math
if we have : (x + a)^2 and (x +b)^2 what will be the general form of the square of a binomial B ?
asked by sai 
Chemistry
If an aqueous solution is 5.08 % by weight in sodium chloride and contains 1.79 g of sodium chloride, what mass of water is present in the solution?
asked by Beya 
chemistry
calculate the ph of half cell Pt,H2H2SO4, if its electrode potential is 0.03V
asked by shambhawi 
History
Which identifies the reason for the rise of imperial powers? Industrialized nations wanted to extract resources from developing nations. European countries wanted to add value to their landbased economy by expanding their territories. Colonial powers
asked by Quinn 
math
Searches related to what is the answer to Triangle ABC has two sides that measure 12 inches and 16 inches. Which could be the measures of the corresponding sides of a triangle that is similar to triangle ABC? 1. 10 in and 14 in 2. 9 in and 12 in 3. 6 in
asked by Donna 
science
Which option would guide the thought processes of a scientist? instinct hearsay opinion empirical data D?
asked by Bri 
Math 115
Create a piecewise function of the following scenario where Upper D leftparenthesis t rightparenthesis is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 3 miles per hour for
asked by George 
Math 115
Create a piecewise function of the following scenario where Upper D leftparenthesis t rightparenthesis is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 3 miles per hour for
asked by George 
social studies
what is the preamble to the constitution?
asked by dd 
physics
A box of mass m rests on a rough, horizontal surface with a coefficient of static friction μs. If a force Fp arrow is applied to the box at an angle θ as shown, what is the minimum value of θ for which the box will not move regardless of the magnitude
asked by joy