rich
Popular questions and responses by rich
Chem
In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative molar amounts from highest to lowest for : Br OH CH3NH3+ HBr CH3NH2 H3O+ H2O
asked on November 8, 2013 
math
Jonah has a large collection of marbles. He notices that if he borrows 5 marbles from a friend, he can arrange the marbles in rows of 13 each. What is the remainder when he divides his original number of marbles by 13?
asked on August 19, 2012 
literature
Regarding the difference between fiction and nonfiction, which statement is most accurate? A. Nonfiction writers are more often free to move about in time and space. B. Literary fiction does little except inform and specify. C. Nonfiction writers are free
asked on August 4, 2009 
Physics
a long jumper jumps 10m and leaves the ground at an angle of 45 degrees.determine the speed he leaves the the ground at,
asked on September 22, 2010 
Physics
A uniform solid sphere rolls down an incline. (a) What must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.23g? (b) If a frictionless block were to slide down the incline at that angle, would
asked on November 6, 2018 
Math
I'm stumped on this one too: s e e d + i c e d  s p i c e c= ___ d=___ e=___ i= ___ p= ___ s=___ Hint: Solve for s and i. Then is e is even or odd? Thanks for your help.
asked on October 9, 2008 
Algebra
Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?
asked on October 13, 2016 
Math
Nick made an array that has 10 counters.Draw 4 arrays that he might have made.
asked on October 20, 2015 
Chemistry
If 1.20g of steam at 100.0 celcius condenses into 38.5 g of water, initially at 27 celcius what is final temperature of water
asked on May 25, 2013 
Math
If the graph of f ′(x) is continuous and decreasing with an xintercept at x = c, which of the following must be true? The graph of f has a relative maximum at x = c. The graph of f has an inflection point at x = c. The graph of f has a relative minimum
asked on January 31, 2018 
Finite
The quantity demanded each month of Russo Espresso Makers is 250 when the unit price is $136. The quantity demanded each month is 1000 when the unit price is $106. The suppliers will market 750 espresso makers when the unit price is $72 or higher. At a
asked on April 2, 2013 
physics
What is the net force acting on a 25N freely falling object? What is the net force when the object encounters 15N of air resistance? When it falls fast enough to encounter 25N of air resistance?
asked on October 18, 2011 
physics
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. A diver releases an air bubble of volume 4.0cm3cm^3 from a depth of 16mm below the surface of a lake, where the temperature is 8.0∘C. What is the volume
asked on December 6, 2014 
chemistry
1. A current of 3.0A deposited 2.0g of a metal in 20 minutes. (a) calculate the mass of the metal deposited by 1 faraday. (b) determine the atomic mas of the metals given that it is trivalent. [1 faraday =96500c] 2. A quantity of 3.35g of a certain group
asked on June 14, 2019 
math
a land developer is dividing 20 acres of land into 2/5 of an acre lot. if each lot is $15,000 what is the total value of the 20 acres.
asked on December 6, 2017 
math
If painter A can paint a room in three hours by themselves, and painter B can paint the same room in four hours, and painter C can paint the same room in six hours, how long will it take for all three to paint the room together if they do not get in each
asked on January 25, 2010 
Biology
Which compound has the highest free energy and produces the most ATP when oxidized? A. acetyl CoA B. glucose C. pyruvate D. carbon E. both pyruvate and carbon I've spent the past hour looking for this answer within my textbook or through Google searches. I
asked on September 29, 2009 
Biochemistry
Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?
asked on September 17, 2013 
science
5a 30 kg girl and a 25 kg boy face each other on friction free roller blades . the girl pushes the boy ,who moves away at a speed of 1.0 m/s . the girls speed is how many m/s /
asked on September 19, 2010 
Earth Sciencs
What are the different types of seafloor sediments and what are the factors that control the distribution of each major sediment type? Where does each major seafloor sediment type tend to accumulate in greatest quantity?
asked on August 17, 2010 
health
What is the gap between the axon and the dendrite called
asked on June 3, 2009 
math
Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches. Leave your answer in terms of .
asked on February 12, 2019 
icp
you wreck a car travveling at 88 m/sec and decelerate at 200/s2 how far will the car crumble in at you.
asked on March 28, 2011 
statistics
Use the given confidence level and sample data to find a confidence interval for the population standard sigma. Assume that a simple random sample has been selected from a population that has a normal distribution. salaries of college graduates who took a
asked on December 29, 2011 
physics
A projectile is launched at a speed of 141m/s and an angle of 45 degrees. How fast is it moving at the top of its curved trajectory?
asked on September 30, 2011 
geometry
This is for SAT prep :( Semicircular arcs AB,AC,BD,CD divide the circle above into regions. The points show along the diameter AD divide it into 6 equal parts. If AD=6, what is the total area of the shaded regions? a.4pi b.5pi c.6pi d.12pi e.24pi Here is a
asked on September 18, 2011 
human resources
Castle’s Family Restaurant has eight restaurants in the Northern California area with approximately 300340 employees. Most of the employees work part time, with approximately 40% full time. The operations manager, Jay Morgan, also acts as the HR manager
asked on April 16, 2011 
literature
Regarding the difference between fiction and nonfiction, which statement is most accurate?
asked on August 4, 2009 
Calculus 3
Find the magnitude of v. v = 10i + 3j v =
asked on August 17, 2018 
physics
A light spring having a force constant of 110 N/m is used to pull a 10.0 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.0 m/s^2 (a)By how much does the spring stretch if it pulls on the sled horizontally? (b)By how much
asked on February 18, 2010 
Math
Solve: _/_*_+_*_*_/_+_*_=100 Using only numbers 19 in any order.
asked on April 26, 2016 
chemistry
No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^1 explain how both the rules for significant figures and the random error calculation
asked on January 24, 2007 
chemistry to Dr. Bob
Balance the equation: Note: If a chemical species coefficient is "1" then "1" needs to be entered in the field before that species. MnO4– + H+ + C2O42– Mn2+ + H2O + CO2 I'm not exactly sure how to do this question..Help?
asked on April 26, 2008 
MATH
se a graphing calculator or Excel to find the solution of the system of equations. (If the system is dependent, enter DEPENDENT. If there is no solution, enter NO SOLUTION.) 5x + 3y = 2 3x + 7y = −4
asked on March 2, 2017 
chemistry
if you want a solution that is .1m in ions what mass of na2so4 must you dissolve in125 grams of water assume total dissolution of ionic solid.
asked on March 23, 2013 
College Physics Homework. Please help!
A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and bar together have a resistance of 500 ohms. The rails lie in a horizontal magnetic field with a strength of 0.04 T. The mass
asked on May 7, 2012 
Math
Can you help me with my son's homework question: Maria earned $110, which is $86 more than twice the amount Joan earned. How much did Joan earn? a. $12 b. $18 c. $24 d. $30 I would like to know the 5th grade equation that represents the answer. I guess I'm
asked on September 3, 2008 
math
How do you calculate the total number cells in a human body given that a cell is 1/1,000 of an inch in diameter and the average human body is 66 inches?
asked on September 10, 2012 
Information Technology
Choose one of the organizational departments of a business: accounting, finance, HR, or otherwise. What is the role of this department? What type(s) of information does the department need? How does the department use that information?
asked on February 10, 2010 
justice
No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^1 explain how both the rules for significant figures and the random error calculation
asked on January 24, 2007 
Math
How do figure out the diameter in 1 mile circle
asked on May 8, 2019 
math
how do I find the number of zeros in the quotient of 8x10 tithe fifth power
asked on September 14, 2015 
physics
After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the ninth second of fall? which of these two seconds (1st or 9th) will he fall the greater distance?
asked on October 19, 2011 
algebra
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 5:15 A.M. IF train B passes the same station at 5:27A.M., at what
asked on December 20, 2009 
Math
Can someone help me with this math problem: e g g + e g g  p a g e a=____ e=____ g=____ p=_1___ How we started: p = 1, and g is greater than 5. Thanks!
asked on October 9, 2008 
MATH
The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 35°. The bottom of the ladder is 42 ft from the base of the wall. How long is the ladder? Round your answer to the nearest whole number.
asked on May 9, 2013 
Damon
I have a question for Damon. Thank you for answering my question although you lost me when you came up with 37153 instead of 27153. Was this a typo or am I missing sonthing? IF anyone else can tell me I would like the help.
asked on December 20, 2009 
managerial economics
Question #6 The owner of Taco Joe’s has estimated that if he lowers the price of a burrito from $2.00 to $1.50, he will increase sales from 400 to 500 burritos per day. The demand for burritos is A) elastic. B) inelastic. C) unitary elastic. D) perfectly
asked on July 25, 2008 
Chemistry
I've been stuck on this question for awhile now. I'm having a lot of trouble figuring out how to start it. If you had added exactly 20.00 mL do d.i. water before the titration, calculate the molar concentration of OAc would have been at the end of the
asked on March 4, 2016 
math
Cutting a piece of rope into fourths. Each piece is 16 inches long what is the length of the entire rope
asked on January 23, 2014 
fundamentals of programming
The ACME Company has approached you with a request to develop the psuedocode that will control the operations of their new series of vending machines. The program will be required to maintain the product inventory and money reservoir. The program should do
asked on December 7, 2013 
Calculus
Find the first 6 terms of the sequence b^1 = 5. B^n = 2b(n 1) when n>1. Then write an explicit definition of the sequence and use it to find the 12th term.
asked on August 15, 2012 
Finance
1.What would the major difference between ROI and WACC be? 2.What happens when folks use WACC for new items for budgeting purposes and then the price increases or the interest rate changes? 3.What you have to recalculate everything or just explain the
asked on April 26, 2012 
Geometry
Hi, For one part of my problem I have had to find the equation of a straight line that passes through two points, I have done this but now i need to determine whether a new point lies on this line by using the equation from the first part, how would I do
asked on May 20, 2010 
algebra
The equation y=1777x+27,153 can be used to predict the number y of gun deaths in the United states x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponding to 2002, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in
asked on December 20, 2009 
Science
A 25 l partially filled weather balloon has a volume of 11 L at sea level where the pressure is 1 atm. It rises to an altitude of 6.096km (20,000 feet) where the pressure is only .48 atm. What is the resulting volume? At what pressure would it burst? Use
asked on October 31, 2015 
Calculus
find coefficient of x^8 in expanding of (x2)^11
asked on August 19, 2012 
Business Law
W3 DQ2sub Hazel is 84, and suffers from debilitating arthritis. Sometimes, she can barely walk. Every time Hazel has been unable to get around, her neighbor Ruth cooks and cleans for her until she feels better. Hazel has offered to pay Ruth, but Ruth
asked on June 6, 2012 
math
x times 8.625 = 755.65. What is x
asked on March 26, 2012 
physics
a mettallic rod of lenght l is rotated with speeed v in uniform magnetic field. find induced current if r is resistance.
asked on June 19, 2011 
Biology
Given the following: Pi + ADP → ATP The change in free energy (∆G) is greater than 0. Question: Can this be used to drive endergonic reactions?
asked on September 29, 2009 
stats 1040
you play a game in which you win $4 if you correctly predict the numbers of spots on a fair 6sided die and you lose $1 if you don't correctly predict the number of spots. you plan to play 100 times. how do you set up a box model to represent your net
asked on December 5, 2017 
Energy & Power
If I have zinc@ .76 & copper @.340. Put 9 in a series, what would my voltage be?
asked on December 20, 2016 
Physics
Please help me solve this, most likely simple, problem. I am just starting to learn physics and am finding it very confusing. If you could include a key to explain any formulas used it would be very helpful thank you. I have calculated GPE to be 1500J but
asked on April 26, 2016 
math
a piece of rope 80 centimeters long must be cut into 2 pieces. Each piece of rope will be used to form a rectangle. Where would the rope be cut if the area of 1 rectangle must be 1/4 the area of the other rectangle
asked on March 6, 2013 
Math
What is the value of x in the following problems, y=0 in all of them. y=5+2(3+4x) y=52(3+4x) y=52(3+4x)
asked on October 27, 2011 
MATH
simplify 7+24
asked on December 15, 2010 
Chemistry
Calculate the weight % of HOAc in pure Vinegar?
asked on March 9, 2016 
math
I'm purchasing a board to build a bookcase. Want to divide the board into 1. 75 foot sections. I need six sections what size board do I need
asked on January 23, 2014 
pools
how much water will a 10 foot by 36 inch pool hold?
asked on June 22, 2011 
math
What would the measurements be using the 1/4 in.= 9 ft to represent a 27 ft square?
asked on March 17, 2011 
algebra
Hi, how can I solve this equation using algebra? y= 9x+50, many thanks
asked on May 27, 2010 
math
how to Ifind scale factor if 1/4 inch =2feet
asked on January 29, 2008 
chemistry
.592grams of na2so4
asked on March 23, 2013 
math 123
f(x)=ax+b f(2)=27 and f(1)=15 find the value of x when f(x)=5 how do you work this out?? thanks so much
asked on October 12, 2010 
genetics
you want to build a protein that is 10 amino acids long with the number of different amino acid that can be used how many unique protein could you7 construct.? B)How would this information be encode in your genome?
asked on September 12, 2008 
soil
which soil resists wind erosion best
asked on September 6, 2009

Physics
n9iggaballs
posted on November 8, 2019 
math
Good way of calculation
posted on June 22, 2019 
Math
so B
posted on January 31, 2018 
Chemistry
H2O
posted on October 17, 2017 
Algebra
2+(15x)
posted on March 24, 2017 
math
It does not work.
posted on February 7, 2017 
English Check answers
a
posted on January 16, 2017 
math
I dont know
posted on November 28, 2016 
math
Which symbol makes the sentence true? 3/8 ______ 5/14.
posted on October 2, 2016 
Physics
Thank you very much, with a little googling I can follow along with your first answer. Thank you very much for your help.
posted on April 26, 2016 
Chemistry
The density is .9944 grams per mL
posted on March 9, 2016 
Chemistry
I have the molarity and it was .188
posted on March 9, 2016 
Chemistry
(3.0L H20)(1000g/L)(1 mol/18g) = 166.7 mol H2O
posted on June 5, 2015 
college algebra
Assuming that you mean squared (2x10^2)(3.5x10^2)= 200*350= 70,000= 7*10^4
posted on April 4, 2014 
math
You only rearranged them. You solved for y in terms of x
posted on March 3, 2014 
English; grammar
"Grammar" not "grammar"
posted on March 2, 2014 
math
x x+3 10 x+10>x+3 x+x+3>10 2x>7 x>3.5 4, 7, 10
posted on March 2, 2014 
French
Do you have them in black?
posted on February 27, 2014 
Spanish
Abuelito is the affectionate personal form of grandfather(abuelo) so it is better translated "grampa"
posted on February 27, 2014 
English
Remember that participles are a form of a verb.
posted on February 27, 2014 
maths
total is 85 divided by 10=8.5
posted on February 27, 2014 
maths
Reiny's solution just tells us the max number of days not how many days were actually used. We know that 15 more days were used than originally planned with the full 300. 300d= the sum of the progression
posted on February 27, 2014 
math
7*10 man days After 5 days or 35 man days there are now 10 men to do 35 man days of work 35/10=3.5 days to finish the work for a total of 8.5 days
posted on February 27, 2014