MJ
Most popular questions and responses by MJ
LA
The following questions are from "science and the Sense of Wonder" by Asimov 1. (Part A) What is Asimovs main idea in the essay? a. Space is best apprecieated through poetry b. Poetry and science can work together c. the universe is more than beauty *****
asked on October 13, 2016 
Science: Chemical Reactions
Sodium chloride is formed when the metal sodium bonds to the nonmetal chlorine. The atoms are held together by a(n) ___. PLEASE HELP I DON'T GET IT! :"(
asked on December 7, 2015 
Math
A small factory employs 7 experienced and 5 inexperienced workers. The mean monthly wage of these 12 workers is $700. Given that the mean monthly wage of 5 inexperienced workers is $602, calculate the mean wage of the 7 experienced workers.
asked on March 8, 2010 
4th grade
Classify th triangle by its sides and then by its angles.
asked on March 23, 2009 
Math
The mean height of 20 boys and 14 girls is 161 cm. If the mean height of the 14 girls is 151 cm, calculate the mean height of the 20 boys.
asked on March 8, 2010 
Algebra II
The weight of a body varies inversely as the square of its distance from the center of the earth. If the radius of the earth is 4000 mi, how much would a 200 lb man weigh 1000 mi above the surface of the earth?
asked on January 3, 2013 
chemistry
Calculate the vapor pressure lowering of water when 5.67 g of glucose, C6H12O6, is dissolved in 25.2 g of water at 25 ºC. The vapor pressure of water at 25º C is 23.8 mmHg. What is the vapor pressure of the solution?
asked on March 29, 2012 
English
in "The love song of J. Alfred Prufrock," T.S. Eliot deliberately uses ____________ language. a. Modern b. Shakespearean c. Petrarchan*** d. Classical Am I right?
asked on September 21, 2018 
Chemistry
how many milliliters of 4 M h2so4 are needed to react completely with 23.7g of Bao2
asked on December 13, 2014 
2nd year University BIOLOGY
Why do we see pteridines but not ommochromes on a TLC plate?
asked on January 10, 2018 
University Genetics
In cats fur colour can be black, orange or tortoise (patched orange and black). A mating between two cats produces the kittens indicated below. P: tortoise female X orange male F1: orange females tortoise females black males orange males What are the
asked on January 26, 2018 
Physics
Calculate the true weight of a 60 kg astronaut on: a) the surface of Mars, and b)the surface of Saturn. Mass of Mars= 6.42x10^23 Mass of Saturn= 5.69x10^26
asked on December 5, 2015 
Statistics
The distribution of scores on a test is moundshaped and symmetric with a mean score of 78. If 68% of the scores fall between 72 and 84, which of the following is most likely to be the standard deviation of the distribution? 3, 1, 4, 6?
asked on March 12, 2012 
home economics
what is the philsophy of home economics education? Wouldn't this vary with time, culture, and many other factors? And from school to school? I remember in the 1950's at the University...most subjects were taboo for women to take, such as engineering,
asked on June 21, 2006 
statistics
A new national survey found that Americans drink an average of 6 glasses of water daily, instead of the recommended 8. Assuming that the number of glasses of water is approximately normally distributed with a standard deviation of 1.7 glasses, what
asked on April 16, 2015 
Chemistry
Toluene, C6H5CH3, is a liquid similar to benzene, C6H6. It is the starting material for other substances, including trinitrotoluene (TNT). the molality of toluene in a solution that contains 26.2 g of toluene and 132 g of benzene. Calculate the molar
asked on March 29, 2012 
PHYSICS
The drawing shows a large cube (mass = 34 kg) being accelerated across a horizontal frictionless surface by a horizontal force P. A small cube (mass = 3.3 kg) is in contact with the front surface of the large cube and will slide downward unless P is
asked on June 4, 2007 
Chemistry
How to determine SiO2/Na2O ratio after mixing Na2SiO3 (SiO2=30%, Na2O=9%, water=61%)and NaOH (8M)solutions?
asked on June 16, 2016 
science
The total power output of the Sun is about 3.8 × 1026 W, and the powerproducing core has a radius of about 1.4 × 105 km (about 20% of the full radius of the Sun). Using these figures and your knowledge of the energy release in the proton– proton chain
asked on August 24, 2011 
chemistry
20mL ethanol(density=o.789g/mol) is dissolved in sufficient water to produce a 200mL solution. the density of the solution is 0.982g/mL. what is the molarity?
asked on March 11, 2013 
physics
Sam is 180cm tall. He stands 60 cm in front of a tall plane mirror.How tall is Sam's image
asked on April 17, 2012 
physics
a currentcarrying wire is oriented at right angles to a uniform magnetic field. if the lenght of the wire is 0.50m and it experiences a force at 0.90n while carrying a current of 4.0a. what is the strength of the magnetic field?
asked on December 1, 2010 
science
The brightest galaxy in the Bootes cluster of galaxies is found to have a redshift of 0.13. (Assume the speed of light, c, is 3.0 × 10 8 m s−1.) (i) Assuming the Hubble constant, H0, is 70 km s−1 Mpc−1 to two significant figures, calculate the
asked on August 22, 2011 
physics 20
What is the true weight of a 60kg astronaut on: a) the surface of Mars? b) the surface of Saturn? given: mass of Mars= 6.42x10^23 mass of Saturn= 5.69x10^26
asked on December 6, 2015 
analytical chemistry
You are asked to make a 0.3M CaCl2 solution in a flask that can hold 200 ml. How would you do it?
asked on February 15, 2014 
Chemistry
Toluene, C6H5CH3, is a liquid similar to benzene, C6H6. It is the starting material for other substances, including trinitrotoluene (TNT). Find the molality of toluene in a solution that contains 26.2 g of toluene and 132 g of benzene.
asked on March 29, 2012 
biology
In chickens, males have two Z sex chromosomes (ZZ) and females have one Z and one W sex chromosome (ZW). The mechanism for inheritance of the sex chromosomes is exactly the same as for X and Y sex chromosomes in other species. In chickens the character of
asked on July 4, 2011 
PHYSICS
A person holds a ladder horizontally at its center. Treating the ladder as a uniform rod of length 2.65 m and mass 6.84 kg, find the torque the person must exert on the ladder to give it an angular acceleration of 0.301 rad/s2 We tried T = mr^2(alpha), but
asked on June 4, 2007 
math
The scale of a map is 5m= 15 mi maps 8.2 actual____
asked on February 11, 2015 
Physics
A hydrometer is an instrument for measuring the specific gravity of a liquid. For example, producers of maple syrup use the hydrometer to find how much sugar is in the collected sap. Markings along a stem are calibrated to indicate the specific gravity for
asked on January 26, 2011 
Physics
I need help with these two uestions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J
asked on January 22, 2010 
Shakespeare
I need help with the meter in Shakespeare's Sonnet 87. I know usually his are iambic pentameter, but with eleven syllables in each line I can't make that work. HELP.
asked on February 23, 2008 
Math
from 10 meters of wire, 3/4 meter was cut.How many meters of wire were left?Show your answer by using an illustration
asked on September 29, 2016 
math
A diver descended at a constant rate of 12.24 feet every 3 minutes. Which of the following is true? A. After one minute, the diver was at4.08 feet B. After one minute, the diver was at 4.08 feet C. After one minute, the diver was at 6.62 D. After one
asked on September 9, 2015 
prealgebra
The scale factor for a blueprint is 7cm= ___m Model 40.4 cm actual 80.6m
asked on February 11, 2015 
Math
Jim, Juan, Mary, and John are all managers for the same company •Jim always meets the sales goals •Juan exceeded the goal by 15% on Tuesday and 10% on Wednesday. •Mary’s goals for each day of the week are 5% lower than the goals for other managers.
asked on January 5, 2015 
Physics
I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c)
asked on January 22, 2010 
English
Could someone tell me if the punctuation in this sentence is correct? We received a tour of the offices after which, we met in the conference room where !@#$%^& and Jane joined the group. Could someone tell me if the punctuation in this sentence is
asked on August 24, 2006 
math
The game involves tossing a penny and a dime along with rolling a die. to win the penny land heads up, the dime land tails up and roll a 6 on the die. what is the probability that he will win on the first play
asked on July 28, 2014 
physics
To show your friends how strong you are, you start pushing a big container with mass 50 kg along a long, flat highway. While you are pushing the container in a horizontal direction with an average force 350 N, it moves with acceleration 1 m/s/s. After 5
asked on November 16, 2011 
chemistry
(a) (i) Draw the abbreviated structural formula, in truncated form, of the compound that would be produced from the reaction of one molecule of glycerol with one molecule each of A, B and C .Circle and name the new functional group(s) produced. What type
asked on September 15, 2011 
biology
A poultry farmer hopes to profit from the current craze for keeping egg laying chickens as pets and wishes to increase his stock of interesting and unusual breeds. (a) The farmer crossed a purebreeding white chicken with a purebreeding black chicken and
asked on July 4, 2011 
Physics
Anyone can help me solve 2 of those problems A man lifts a box of books that weigh 185N. The box is lifted 0.80m. How much work does the student do on the box? A thermometer can measure temperature to the nearest enth of a degree. Which of the following
asked on January 25, 2010 
Physics
I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c)
asked on January 23, 2010 
University Genetics part 2
In class we discussed autosomal polymorphisms such as widow’s peak and detached ear lobes, both of which are dominant traits. Suppose that a man with a widow’s peak and attached ear lobes (whose father had detached ear lobes) marries a woman without a
asked on January 26, 2018 
6th grade math
What is the greatest number of pictures each 2.5 and 3.5 inches that a photographer can print on an 8 inch by 10 inch paper?
asked on July 30, 2015 
chemistry
Convert .25 L of a .025 M solution of NaCL starting with solid NaCI and water
asked on February 13, 2012 
Finance
How much is a 9 month CD worth that started out at $1,000.00 at 4.40% worth after 15 years
asked on October 4, 2011 
5th grade
what is 1/5 of 10
asked on November 11, 2010 
Math
How to convert: cm to mm m to cm m to mm m to km km to m
asked on February 15, 2010 
Vocabulary
Does anyone have the same Vocabulary book I do? It's about 3/4 the size of a textbook, with a orange cover with a blue pencil on it. If so, could someone please tell what the words are for Unit 3? Thank you!
asked on September 19, 2007 
math
find the amount of an annuity of $5000 payable at the end of each 3 months for 8 years,if money is worth 12% compounded quarterly.
asked on April 23, 2018 
College Algebra
Solve for elimination method,substitution method and cramer's rule for 8x  4y + 2z =16
asked on September 1, 2016 
College Algebra
8x  4y + 2z=16 for elimanation method,substitution method and cramer's rule?
asked on September 1, 2016 
math
Which of the following is not equivalent to 1/2 A. 1/2 B. [1/2] C. 1/2 D.0.5 The answer is A
asked on September 9, 2015 
General Chemistry
What is the concentration in ppm of Ag in a 245 lb of Ore that contains 83.5g of silver?
asked on March 23, 2015 
Writing  APA
For writing in APA and your table goes on two pages, do you just repeat the table header rows? I already titled the table on the first page.
asked on March 1, 2015 
Economics
When dealing with the probabilities in the payoff matrix, would you always go with the highest calculated value? For example, I calculated payoff by multiplying the hours it would take to do something times the probability. Then used those values and took
asked on February 24, 2015 
algebra
2/5 of the total questions on a test have the answer Choice of C. If 50 questions have the answer C, how many total questions are there? I've tried 20/50 2/5 times 50/1
asked on August 26, 2014 
Math
What the next number should be? 6 18 20 10 30 32 16
asked on February 25, 2013 
Research skills
Place the following call numbers in the proper order based on the Dewey Classification A. 530 C68s 1985 B. 530.1 A12f 1976 C. 530.028 M52c D. 530 A82u 1988 E. 530.0274 C52e
asked on May 31, 2012 
algebra
The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.81 inch
asked on March 8, 2012 
algebra
: If Bobby fives Jane three pens, they have the same number of pens. But if Jane gives Bobby three pens,he will have three times as many pens. How many pens does each student have?
asked on February 6, 2012 
math
find the sum of the square of 3 1 over 3 and the cube 3 over 2..
asked on November 9, 2011 
science
Newton’s law of gravity is used with great success in most everyday situations, and indeed, in planning planetary space missions such as the Rosetta probe. However, Einstein’s theory of general relativity and a theory of quantum gravity are needed to
asked on August 28, 2011 
business calculus
For the function f(x) = 1/(x2+14x42) there are two vertical asymptotes. Determine the xcoordinate of each one
asked on February 10, 2011 
7th grade
i need help in Math with Fractions can i have some pointer to remember it. P.s. Thank you guys if u can help
asked on December 7, 2010 
Math
How do i solve the following by factorization: 1) 7.7^22.3^2 2) 43*56+43*44 I know how to do these manually but not by factorization.
asked on March 7, 2010 
Pre Calculus
Write an explicit formula... 3,4/3,1,6/7,7/9 Can someone help me out?
asked on March 4, 2009 
Statistics
I need to do a project for ap stats. It can be anything im interested in, and i have to perform some tests and all that I need some ideas!! Somthing that would be interesting..
asked on May 28, 2008 
math
place value of 95732
asked on June 22, 2016 
math
St. Augustine beach is changing 3ft. each year due to erosion. What will the overall change to the beach be in 7 years if this continues to occur? The over all change will be 21
asked on September 9, 2015 
math
In a science experiment, the temperature fell 63 degrees Fahrenheit in 9 minutes. If the temperature fell at the same rate every minute, how many degrees did it change each minute? 63 divide by 9 = 7
asked on September 9, 2015 
Math
A quality control sample taken on a certain day revealed that for every 2000 units of a particular product manufactured,30 units were defective ?
asked on August 26, 2015 
Math
A blueprint 8 centimeters wide and 14 centimeters high is to be enlarge.if the height of the enlargement will be 30 centimeters, how wide will it be?
asked on August 26, 2015 
analytical chemistry
How much NaOH (in grams) would there be in 0.25 litre of a 0.3M solution?
asked on February 15, 2014 
physices
an object is falling freely from rest of height of 65m above the ground what is the height of the object from the ground in meter when it reaches velocity of 20m/s?
asked on October 30, 2013 
physics 1
a helicopter is flying at an altitude of 1000 m above the ground, with a horizontal velocity of 50 m/s, how far from the rally point should the relief package be dropped?
asked on April 24, 2013 
english
Proper use of apostrophe in sentence: Oklahoma's dust storms in the 1930's blew away tons of soil. Correct?
asked on January 23, 2013 
math
If you run 1 mile on Monday and then double everyday how many miles will you run by friday?
asked on October 11, 2012 
Math
Joe picked leaves, he has 3 kinds. He has 2 times as many elm leaves as maple leaves, and 5 times as many oak leaves as maple. He has 32 leaves. How many of each kind does Joe have?
asked on October 2, 2012 
calculus
pls integrate and differentiate e^x^2 and x/y square root of x^2+y^2 in terms of x.
asked on July 5, 2012 
Chemistry
An aqueous solution is 0.257 m NaOH. What are the boiling point and freezing point of this solution?
asked on March 29, 2012 
statistics
. An automobile is selling a new model car with an advertised in‐city mileage of 27 MPG. As with most car models, there is no associated measure of variability (variance, SD, etc.) included with the advertised MPG. You write the manufacturer and request
asked on March 1, 2012 
math
find the sum of the square of 3 1/1 and cube of 3/2
asked on November 9, 2011 
Math
Danny gave Rose $28 less than she already had. She now has $120. that means Rosario originally had how much????
asked on November 1, 2011 
Math
How do I find the Mean, Median and Mode from a frequency table?
asked on March 7, 2010 
Physics
Compare magnetic and electrostatic forces. In what ways are they a) similar, b) different
asked on February 18, 2010 
Chemistry
What is the difference between organic acids and mineral acids?
asked on February 17, 2010 
French
Can someone tell me if these sentences are all grammatically correct? Merci! elle serait contente de nous conduire au magasin le 8 avril. Nous pouvons y emmener deux personnes.
asked on February 12, 2009

HISTORY
the answer is c. i helped my self!
posted on May 29, 2019 
HISTORY
this is a homework help website so someone needs to help us kids!
posted on May 29, 2019 
Social studies
idk i have the same question and i think it is c or b.
posted on May 29, 2019 
History
can someone just give the answer
posted on May 22, 2019 
math 3
Try this. 48 divided by 16=(16x3)=48 Answer: 3 layers Hope this was helpful. U welcome!
posted on March 25, 2019 
college physics
W= (m)((Vi^2)(Vf^2)/2
posted on October 13, 2018 
Math
3.75
posted on April 20, 2018 
2nd year University BIOLOGY
Ommochromes are not soluble in mobile phase, ( thats all it says in the procedure)
posted on January 15, 2018 
Government
In case anyone still needs it, the answers are: 1. B. NAFTA has established the largest free trade zone in the world. 2. B. to promote the foreign policy positions of the United States. 3. D. a decrease in U.S. manufacturing jobs.
posted on January 8, 2018 
Science Help!!!!
okkkkkkk so A?
posted on October 11, 2017