Questions Asked on
February 1, 2013

Science
What do the letters rorpsfgnloadeeasi make. It's supposed to make a mystery phrase. We are learning about plate tectonics.
asked by Ashlyn 
ap us history
to what extent did populists continue to focus on grievances of earlier movements?
asked by Anonymous 
physics
An airplane is flying with a velocity of 95.0 at an angle of 26.0 above the horizontal. When the plane is a distance 113 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will the
asked by Supriya 
Physics Electricity
Two identical point charges (q = 7.20 x 10^6 C) are fixed at diagonally opposite corners of a square with sides of length 0.480 m. A test charge (q0 = 2.40 x 10^8 C), with a mass of 6.60 108 kg, is released from rest at one of the empty corners
asked by Frustrated 
physics
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 19.0{\rm cm} , giving it a charge of 13.0\mu {\rm C} Find the electric field just outside the paint layer. Find the electric field 8.50{\rm cm} outside
asked by Julie 
physics
If 3000ft/3 of air crossing an evaporator coil and is cooled from 75F to 55F, what would be the volume of air,in ft/3, exiting the evaporator coil?
asked by Robert 
chemistry
The density of water at 30.0 °C is 0.9956 g/mL. If the specific gravity of acetic acid is 0.1040 at 30.0 °C, what is the density of acetic acid at 30.0 °C?
asked by chelsy 
chem
If you pour equal amounts of scalding hot water into different metallic cups of equal temperature, which cup will heat up the most? Rank the cups from hottest to coldest. Rank from warmest to coolest final temperature. 500g cast iron cup 500g gold cup
asked by mira 
chemistry
how long would it take for 1.50 mol of water at 100C to be converted completely into steam if heat were added at a constant rate of 18.0J/s?
asked by Anonymous 
Physics
5. The ball launcher in a pinball machine has a spring that has a force constant of 1.20 N/cm . The surface on which the ball moves is inclined 10.0° with respect to the horizontal. The spring is initially compressed 5.00 cm. Find (a) the launching speed
asked by John Tucker 
calculus
The count in a bacteria culture was 600 after 10 minutes and 1100 after 30 minutes. What was the initial size of the culture?Find the doubling period. Find the population after 80 minutes. When will the population reach 13000?
asked by Nycw 
physics
A force of 1.35 newtons is required to accelerate a book by 1.5 meters/second2 along a frictionless surface. What is the mass of the book?
asked by nimitz 
Stats
The area between the mean and a Z score of +1.50 is 43.32%. This score is higher than ___ of the score in the distribution.
asked by DeeDee 
calculus 2
The curve y=sinh(x),0
asked by Nycw 
PHYSICS
Because Earth's rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0 ms longer than the day at the start of the century. In 93 centuries, what is the total (in hours) of the daily increases in time (that
asked by SARA 
Health
Which characteristic of a goal allows you to know when you have accomplished it? A) It is specific B) It is measurable C) It is unrealistic
asked by Anonymous 
physics
Comicbook superheroes are sometimes able to punch holes through steel walls. (a) If the ultimate shear strength of steel is taken to be 3.00 x 10^9 Pa, what force is required to punch through a steel plate 1.90 cm thick? Assume the superhero's fist has
asked by anthony 
Chemistry 3A
You want to make the following buffer: 5% glucose, 100 mM tris and 10 mM EDTA in a final voume of 300ml. Your stock solutions are 20% glucose, 1M tris and 0.5M EDTA. The diluent is distilled water. Determine how much of each you will add to make the
asked by Katie 
physics
An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.40 1011 m. What is EPEfinal 
asked by abby 
Chemistry
What weight of solute (M,wt =60) is required to be dissolved in 180gm of water to reduce vapour pressure to 4/5th of pure water?
asked by Jannat Sidhu From A.A.Cheema 
Physics
potential energy well for a 2.0 kg particle (the function U(x) has the form bx2 and the vertical axis scale is set by us = 2.0 J). (a) If the particle passes through the equilibrium position with a velocity of 85 cm/s, will it be turned back before it
asked by Akshay 
mathsurgently needed
From the top of a tower the angle of depression of an object on the horizontal ground is found to be 60degree. On descending 20 m vertically downwards from the top of the tower, the angle of depression of the object is found to be 30degree Find the height
asked by Anonymous 
math
Three people are being selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person
asked by carol 
Chm 2046
The normal boiling point of liquid ethanol is 351 K. Assuming that its molar heat of vaporization is constant at 37.5 kJ/mol, the boiling point of C2H5OH when the external pressure is 1.35 atm is K.
asked by Camaro Lover 
Physics
A model airplane has a mass of .90 kg and moves at a constant speed on a circle that is parallel to the ground. Find the tension in the guideline (length = 17 m) for speeds of 19 and 38 m/s.
asked by Poindexter 
Chemistry
At 400°C the reaction H2+I22HI has an equilibrium constant Kp value of 55.5. A mixture of 1 mole of H2 and 1 mole of I2 is placed in a flask and heated to 400°C. Calculate the mole fraction of HI in the mixture of gases when equilibrium reached.
asked by Kelly 
chem
Rank the following species according to the decreasing energy needed to raise the temperature of 10.0g of the substance by 25.0 degrees celsius Rank from most to least energy needed. Rank these in order of the question. copper aluminum cast iron silver
asked by mira 
physics
an airplane is traveling horizontally 500 m/s at an altitude of 3000 meters. what's the distance the airplane should drop the bomb so it hits the target on the floor
asked by vii 
Science
Which of the following is NOT true of bacteria? a. Bacteria change the sugar in milk to lactic acid. b. Bacteria change nitrogen into a form plants can use. c. Bacteria change harmful chemicals into harmless ones. d. Bacteria change oxygen into nitrogen.
asked by T.J And the Vibe 
English
Which word correctly completes the sentence? To (blank) did you write the card? A. Who B. Whom I thnk the answer is B. Whom. Which meaning of the vocabulary word steep is used in the sentence below? The steep rise in gas prices angered the population. A.
asked by Anon 
Math
Ann had $198 more than her sister. After their mother gave Ann $20 and her sister $60, Ann had twice as much money as her sister. How much money did Ann have at first.
asked by Ashley 
Chemistry
I had a 1.094g of mystery Alum. "AB(SO4)c. dH2O" (I assume that that the Alum is KAl(SO4)212H2O but we don't know A B c or d, we do know that mass percent of water is 51.9) After processing the alum (Ba(NO3)2 and HNO3 through a gooch crucible) we end up
asked by Graham 
PHYSICS
Grains of fine California beach sand are approximately spheres with an average radius of 50 μm and are made of silicon dioxide, which has a density of 2.4 × 103 kg/m3. What mass of sand grains would have a total surface area (the total area of all the
asked by SARA 
physics
A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.54 s after it was thrown. How high is the cliff?
asked by Anonymous 
chem
Calculate the amount of heat required to heat a 3.3kg gold bar from 24 degrees celsius to 61 degrees celsius. Specific heat capacity of gold is 0.128 J/g degrees Celsius! Express your answer using two significant figures.
asked by mira 
Chemistry
Explain the following phenomena in terms of intermolecular forces. Determine the major type of forces between the molecules. a) You can't clean grease off you hand with water only b) Pancake syrup is more dense than olive oil. Please provide the structure
asked by m 
Physics
If the specific volume of red brass is 0.001865 ft/3lb. What would be the density? Thanks!
asked by Danny 
trigonometry
What is the graph of y= 5sin1/2(x+pi)1
asked by Betty 
world geography
The Poorest Land In Nigeria Is Populated By____? a)the most ethnic groups b)the trading cultures c)the fewest people d)the herding cultures
asked by Anonymous 
History: Please check answer
3. The CIA participated in the Cold War by helping design efficient weapons systems. carrying out secret operations in other countries. spying on the Soviet Union. helping the president determine foreign policy. I think the answer is B. Thank You
asked by Deborah 
Science
1. How do antibodies make antigens useless? (1 point) by attaching to them by dissolving them by covering them with carbon dioxide by hiding them 2. ___________________ occurs when your body already contains antibodies against an infection due to previous
asked by Anonymous 
sociology cultural
Compare and contrast the kinship and marriage system of the Kaluli and the Minangkabau.
asked by Anonymous 
Algebrahelp
8. Tina and Jim each work at a different car wash. Tina is paid $37 per day plus $1.50 for each car she washes. Jim is paid $40 per day plus $1.00 for each car he washes. Write an expression that represents the amount Tina is paid each day given the number
asked by Deborah 
chemistry 1B
A sample of gas occupies a volume of 61.2 mL. As it expands, it does 133.9 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas.
asked by Anonymous 
physics
A rifle is aimed horizontally at a target 46.0away. The bullet hits the target 2.30 below the aim point. What is the bullet's flight time? What is the velocity as it leaves the barrel?
asked by Josh 
Math
I need help with this these two problem PLEASE!!! For a population with a mean of μ 80 and a standard deviation of 12, find the zscore corresponding to each of the following samples. a. M 83 for a sample of n 4 scores b. M 83 for a sample of
asked by Tracy 
english/broadcasting
can you proofread my broadcast news stories I had to write.. had to write 3 of them answering the who what when where why and how... if they need revising that's fine.. from what i understand broadcast news stories have to be conversational. 1. THE
asked by Blaze 
Homeland Security
the development of Al Qaeda, at what point in the organization’s growth do you feel it should have become a concern to United States government officials? Explain
asked by Holly 
Economics Help ASAP!!?
1. How do they stock market performance indicators help predict the performance of the market? 2. What are their flaws?
asked by Moe 
Maths
Stephanie had 24 more stickers than Jolene. Stephanie gave half of her stickers to Jolene. Jolene in return gave half of what she had to Stephanie. In the end, Stephanie had 40 more stickers than Jolene. How many stickers did Stephanie have in the end?
asked by RS 
Dr.Bob222 Chem
I believe that you are correct because you have more experience in Gchem then I have. But how does doubling the reaction rate double the k value? Isn't k just a constant for a particular reaction?
asked by Devron 
Tree diagrams
Three people are being selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person
asked by carol 
geometry
AB and AD are tangents of the circle with the center at C. The measure of BDC = 45o, and the circle has a diameter of 4. Which is the length of AB?
asked by Anonymous 
algebra
Find a polynomial function of least degree with real coefficients satisfying the given properties. zeros 3, 0, and 4 f(1) =10
asked by Vee 
Math
Calculate how long a deorbit burn must last in minutes and seconds to achieve the Shuttle’s change in altitude from 205 miles to 60 miles at perigee.Use the equations and conversions provided below in method 1 or method 2 to find the required burn time
asked by katie 
Temperature and Rate
Q: The activation energy of a certain reaction is 32.9 kJ/mol At 25 degrees C the rate constant is 0.0160 units s1 units. At what temperature in degrees Celsius would this reaction go twice as fast? My work: ln(0.0160/0.032) = (32.9 x 103/8.314)(1/T2 
asked by Amy 
chemistry
Calculate the amount of heat required to heat a 3.6{\rm kg} gold bar from 20^\circ {\rm C} to 70^\circ {\rm C}. Specific heat capacity of gold is 0.128 \rm J/g ^\circ C
asked by Anonymous 
English
Rephrase the main idea of the sample in your own words, without repeating words or sentence structure from the original statement. (I honestly can't seem to decide on how it should be worded) "Air pollution can also have a significant impact on our
asked by Jess 
Chemistry
Find molality of a solution containing non  volatile solute if its vapour pressure is 2% below the vapour pressure of pure water
asked by Jashan Gill 
math
what is the decimal representation of 8/32
asked by Anonymous 
physics
A sonar signal of frequency 1.00 106 Hz has a wavelength of 1.40 mm in water. (a) What is the speed of the signal in water? (b) What is its period in water? (c) What is its period in air?
asked by noah 
PHYSICS
During heavy rain, a section of a mountainside measuring 5.4 km horizontally (perpendicular to the slope) 0.80 km up along the slope, and 2.1 m deep slips into a valley in a mud slide. Assume that the mud ends up uniformly distributed over a surface area
asked by SARA 
Thesis statements??
Which of the sentences below is the best option for a thesis statement? A. An afterschool program at the community center might involve classes, sports, and other activities in which children can take part. B. I think young children should have a club or
asked by Ashley J. 
Guidance and Discilpine
Adults should not assume that children: a.know how to clean up without being taught how to do it.b.will make a mess each time they play with toys.c.can use teamwork to clean up a messy center.d.will argue over who has to clean up the classroom.
asked by Sandra 
Geometry8th gr
The perimeter of triangle ABC is 120. LIne segment BD bisects
asked by Mona 
Geometry8th gr
Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.
asked by Mona 
math
a hiker travels for 15km on a bearing of 210T how far south is he please show working
asked by matt 
julius caesar
what does the atmophere and the political situation reveal in act one scene 1
asked by christina 
Temperature
Q: A reaction rate has a constant of 1.23 x 104/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 104/0.235)=(Ea/8.314)(1/791/28) 7.551=(Ea/8.314)(0.012650.03571)
asked by Amy 
health
Toddlers or preschoolers are rarely deficient in calcium because of the quantity of ______ that they consume a. cereal b. milk c. fruits d. meat I think milk(c)??? am i correct
asked by marie 
Maths
In a swimming race, you find that a swimmer can swim downstream (with the current) in a river, 2 miles in 40 minutes, & upstream (against the current) 2 miles in 60 minutes. How long would it take the swimmer to swim a mile in still water?
asked by Mir Aman 
Geography
Russia has: A. Small reserves of mineral resources B. huge reservations of mineral resources C. Vast petroleum deposits but few minerals D. Large forest lands, but not much petroleum
asked by Hailey 
SS
4. Why was the nation's sixth president chosen by the House of Representatives? because no candidate won a majority of the electoral votes because in the early Republic, that is the way the president was chosen because the two candidates with the most
asked by Jman 
English Plz Help
1. What can you predict about the poem by previewing the title, subtitle, and first line of the poem “In Response to Executive Order 9066”? A. It will be a letter to the JapaneseAmerican citizens in which they are told they must leave their homes. B.
asked by SAMHAM 
ENGLISH, HELP?
In the following sentence, which words should be in quotation marks? Did you read the chapter Chemical Reactions in our science textbook, Understanding Chemistry? A. chapter Chemical Reactions B. Chemical Reactions C. Understanding Chemistry I think the
asked by JJ 
Geometry
Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.
asked by Kaylee 
chemistry
why NH4+ ion is not strong ligand
asked by anjali 
Statistics
A telephone company's records indicate that private customers pay on average $17.10 per month for longdistance telephone calls. A random sample of 10 customers' bills during a given month produced a sample mean of $22.10 expended for longdistance calls
asked by Stanley 
Psychology Help Please!!!
1)Activities such as cooing, thumb sucking, eating bring satisfaction. 2)Child response to some parental demands for such as bowel and bladder. 3)Child experiences the Oedipus complex. 4)Development continues, but sexual urges are relatively quiet. 5)Child
asked by Katy 
Computer (C)
I need help with c programming, i need to fill in the code and I got these (need help with question 4), I run the grader and I only got question 1 right. grader code: gcc worksheet.c; ./a.out 0; if [ $? eq 0 ] then echo 'Question 0 Correct'; else echo $?
asked by Kevin 
physics
An ocean wave has a length of 12.0 m. A wave passes a fixed location every 2.0 s. What is the speed of the wave?
asked by noah 
physics
Water waves in a lake travel 4.5 m in 1.7 s. The period of oscillation is 1.2 s. (a) What is the speed of the water waves? (b) What is their wavelength?
asked by noah 
college chem
A researcher explores the ideal gas equation. He measures the pressure of a system at different temperatures ( keeping the volume and moles of the gas constant) and creates a plot of P versus T. What is the slope of the line that results if the volume is
asked by k 
pre ap physics
a car with amass of 1120 kg starts from rest and accelerates to the speed of 17.5 m/s in 18.8 s. assume that the force of resistance remains constant at 402.5 N during this time. what is the average power developed by the car's engine? answer in units of W
asked by keely 
math
Please help with the below: Find an expression for the nth term of the given sequence. a). 3,6, 12,24, ... b). 151,142,133,124, ...
asked by Vee 
Algebrahelp
7.  3x  2  = 8 and  x + 1  = 1 What value of x satisfies both equations above? please show your work. I do notunderstand this. Thank You
asked by Deborah 
algebra
Algebraic Expressions 28+(44)+17+31+(94)
asked by michael 
alegebra
s+7t is equivalent expreesion of multiplication
asked by michael 
Science
What happens when bacteria reproduce by binary fission? a. two cells produce a third cell. b. one cell produces two cells. c. one cell produces three or more cells. d. two cells produce two more cells.
asked by T.J And the Vibe 
algebra
distributive law of factor that given expresssion 5x+20y
asked by michael 
edu
When a child is transitioning into your classroom, it is best for the child's first visit to take place: a.in the morning when the other children are arriving b.when other children in your class are on the playground c.during your circle time, so the child
asked by ray 
algebra
simplify 174/261
asked by michael 
Life orintation
What are 5 practices that are in contravention of the basic conditions of employmen Act
asked by Quinessa 
Algebra II
3n^2  n/ n^2  1 / n^2/ n+1 is the answer 3n1/n^2n or 3n/ n1
asked by Hally 
social studies
The policy of mercantilism entails all of the following except that colonies should
asked by Anonymous 
Criminal Justice
A 1page outline on the best way to format and present the federal criminal pretrial process, which includes jury selection, evidence and jury instructions. Please provide examples in your outline of your recommended format for presenting the process. A
asked by Diana 
science
What is the coeffitient of friction for a playground slide and a pair of sports pants?
asked by aaron 
Geometry8th gr
Can you please help me solve this question? Express the ratio x^2 + 4x 12/ x^2  4 in simplest form. Thanks.
asked by Mona 
math
which is a better buy an square pizza that is 8"x8" and cost $10 or a round pizza that is 9" in diameter for the same price?
asked by Heather 
algebra
the number N of state and federal inmates in millions during year x, where x greater than or equal to 2002 can be approximated by the following formula. N=0.05x98.45 Determine the tear in which there were 1.7 million
asked by angel 
health
Infant formula are planned to be: a. high in protein b.high in minerals and vitamins c.low in sugar d.similar to breast milk I think b not sure
asked by marie 
Sociology HELPPPP
How does deviance and crime function both for and against society? Be sure to include social control in your answer group.
asked by Melissa 
mathsurgently needed
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the manufacturer.The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at
asked by Anonymous 
Health check answer
5. What does AQI stand for? asthma quality index air quality index analysis query input air query input I think it is b.
asked by Jman 
chem
How many mL 0.1 M NaOH could you add to a buffer formed from 0.1 moles NaHCOO and 0.1 moles HCOOH without the pH going above 4.74? Ka (formic acid = 1.8 x 104)
asked by Anonymous 
Physics
Standing on a bridge, you throw a 3.0 g stone straight upward with speed of 2.5 m/s. How long does it take to return to the original position?
asked by Myke 
Statistics
Which of the following conditions doesn't need to be met before you can use a twosample procedure? The responses in each group are independent of each other. Each group is considered to be a sample from a distinct population. The same variable is measured
asked by Stanley 
biology
List any five anatomical differences between monocot root and dicot root.
asked by karun 
english
could you please tell me how to use and identify the position of an adverb in a sentence
asked by r s telagathoty 
physics
find the impulse on a baqseball that is hit 80N of force in a time of 0.52 s
asked by cynthia 
physics
a frieght train rolls at the same speed but has twice as much mass its momentum is
asked by cynthia 
physics
in order to catch a fast moving softball with your bare hand doing this reduce the catching forcebecause the what
asked by cynthia 
algebra
PLEASE help with the below. Solve the system of equations by first expressing it in matrix form as and then evaluating. a). 3x2y=5 4xy =10 b). 3x 2y =2 4x y = 3
asked by Vee 
algebra
Please help. Solve the given system of equation. 3x Y =7
asked by Vee 
Algebrahelp
Jordan decides to start a garden care service. He plans to charge $20 for the first hour and $10 for each additional hour that he spends working on a garden. He works 5 days a week and takes care of one different garden each day. How many hours will he
asked by Deborah 
Algebra
4x+y=42 6x5y=50 Solve using the substitution method.
asked by Jamie 
Algebra
x2y=.9 4x3y=13.1 Solve using the substitution method.
asked by Jamie 
julius caesar
The Roman crown will appear several times in the play. What is your impression of them in this scene? Cant figure this one help!!!!!!!
asked by christina 
Algebrahelp
9. Name all of the following numbers that are irrational. 2/3,√8,√144,5.2,0.(87) ̅,π I think it's just pi. Is that correct? Thank You
asked by Brendon 
Algebrahelp
12. A train traveled at a constant speed for 6 hours. The train traveled 225 miles in those 6 hours. What was the speed, in miles per hour, of the train? answer: 37.5 Is that correct? Thank You
asked by Brendon 
maths
A completes a works in 15 days and B completes the same work in 20 days. If they both work together in 4 days . how much work is left?
asked by Anonymous 
Language Arts
7. Which of the following best summarizes "Cyber Chitchat"? 8. The tone of "Cyber Chitchat" is
asked by LOVE 
Algebra
5[m(8+n)] law of multiplication of equivalent expression
asked by michael 
Chemistry
30g of the palm shell were mixed with 15ml H3PO4 and 100ml of distilled water in a 250ml conical flask.The concentration of H3PO4 solution was 2.2M, from question,how to prepare those from ortho phosporic acid (98g/mol).Do help me, is it need to make a
asked by Merlina_Lyn 
math
whats 70.00 the selling price (this part percent whole) sales tax 5 percent so whats the sales tax
asked by kiana 
algebra
5x+20y is what
asked by michael 
English
Rephrase the main idea of the sample in your own words, without repeating words or sentence structure from the original statement. "Right now, smartphones are selling like mad in the U.S. market, where sales jumped 84 percent between 2007 and 2008,
asked by Jess 
math
Allen drove 90 miles in 2 and 1/4 hours at a constand speed, how many miles did he drive in one hour.
asked by Anonymous 
soc
1)While it is rare, sometimes folkways can be laws.
asked by conner 
Alg.  Steve please help
Steve I already asked you the question about the absolute value of 3x2=8 and absolute vale x+1=1....value of x...and your answer was does 0 or 2 satisfy both ....they dont...so is it no solution?
asked by Deborah 
Algebrahelp please
I already asked this question once about the absolute value of 3x2=8 and absolute vale x+1=1....value of x?...and the answer I received was does 0 or 2 satisfy both ....they dont...so is it no solution? Please help  I do not understand this
asked by Deborah 
math
simplify (2x)^3 + 2^3 x
asked by monet 
Geometry 8th gr
Given: triangle ABC ~ triangle PQR, m
asked by Mona 
math
simplify (2x)^3 + 2^3 x a) 8x^3 b) 16x^3 c)8(x^3+x) d) 4(x^3+x)
asked by monet 
calculus 2
Megan bailed out of her plane at an altitude of 8000 feet, fell freely for 15 seconds, and then opened her parachute. Assume that the drag coefficients are a=0.1 for a fee fall and a=1.6 with a parachute. When did she land(in seconds)?
asked by Nycw 
physical sciences
how much work is required to accelerate a can with a mass of 1000kg from 20 metre per second to 30m cubed
asked by gedletoon physics 
chemistry
How do you make 300 ml of a 2M solution from a 50 M stock solution?
asked by Monika 
Social Studies us history
How does the current distribution of wealth in the U.S. comapare to 1929?
asked by Anonymous 
College Algebra
3x^4=648x someone help please im so confused. i am trying to find the solution set?
asked by Adrianna 
physics
how do we find the interpolation from a graph to determin the number of images which should be observer with a mirror angle of 90 degree and how do we calculate the line equation.
asked by Riana 
social studies us history
I have to put this in one page and submit it today before 1:00 can someone please help me do this? I would really apperciate it very much How does the current distribution of wealth in the U.S. comapare to 1929?
asked by Anonymous 
calculus 2
Megan bailed out of her plane at an altitude of 8000 feet, fell freely for 15 seconds, and then opened her parachute. Assume that the drag coefficients are a=0.1 for a free fall and a=1.6 with a parachute. When did she land(in seconds)?
asked by Nycw 
math
Describe the distribution of sample means (shape, expected value, and standard error) for samples of n 36 selected from a population with a mean of μ 100 and a standard deviation of 12.
asked by Cookie 
Statistic
For a population with a mean of μ 70 and a standard deviation of 20, how much error, on average, would you expect between the sample mean (M) and the population mean for each of the following sample sizes? a. n 4 scores b. n 16 scores c. n 25
asked by Cookie 
Math
If the population standard deviation is 8, how large a sample is necessary to have a standard error that is: a. less than 4 points? b. less than 2 points? c. less than 1 point?
asked by Tracy 
history us
How does the current distribution of wealth in the U.S. compare to 1929? Include statistics. I really need help someone.
asked by Anonymous 
trig
A mountain road makes an angle θ = 8.4° with the horizontal direction. If the road has a total length of 3.4 km, how much does it climb? That is, find h.
asked by gavin 
physics
A mag lev train traveling at 180 m/s towards a rail way crossing sounds its horn with a wavelength of 0.20 m. What is the frequency of sound that people waiting at the rail way crossing hear?
asked by Steve 
Math
I need help solving this equation using the Factoring Completely method. X⁴x³
asked by Phil 
buisness english
Mookie4571 Beginner (16) Which of the following sentences uses passive voice appropriately? A. "Your order was shipped yesterday and should arrive by Friday." B. "The shipping clerk sent your order yesterday and it should arrive by friday." C. "The
asked by Lisette 
science
The mass of the empirical formula is 100g; the mass of the molecular formula is 200g. What is the value of n?
asked by Anonymous 
science
The mass of the empirical formula is 100g; the mass of the molecular formula is 200g. What is the value of n?
asked by Anonymous 
maths
The sum of the digits of a two digit number is multiplied by 8. The result is 8 more than the 2digit number. Find the number
asked by Anonymous 
science
i have a project for school and i need to separate these things using house items. the ojects are marbles rice and coosecoose(its like smaller than rice) so i need to know how to separate the things. PLZ I NEED HELP!
asked by a random student 
English
In the book, "A glory over everything", What kind of help does the white woman refer to when she tells Harriet, “If you ever need any help—”?
asked by T.J And the Vibe 
English
1. Why is the agreement in the following sentence incorrect? Neither of the cakes are very expensive. The verb should agree with cakes, which is a plural noun. The verb should agree with cakes, which is a singular noun. The verb should agree with neither,
asked by Anonymous