Saturday
March 28, 2015

Posts by BOB


Total # Posts: 2,580

Science
thx reed :)
March 19, 2015

Science
Ok I will go back through my lesson and check #3 thx :)
March 19, 2015

Science
1. Which type of weather technology often carries cameras that can make images of Earth's surface, clouds, and snow cover? A. weather balloon B. weather satellite**** C. computer D. automated weather station 2. Why are weather forecasts more reliable now compared to ...
March 19, 2015

math
How many square yards of carpeting are needed to cover the floor of a rectangular room that is 21 ft. long and 12 ft. wide?
March 17, 2015

Accounting
E13 Selected account balances of the Lakeside Grocery Store for the year ended December 31, 20xx, follow. Beginning merchandise inventory was $ 26,000, and ending merchandise inventory is $ 22,000. Prepare closing entries, assuming that the owner of Lakeside Grocery, John ...
March 16, 2015

Statistics
Okay, but what if the maximum that each box can hold is 2?
March 14, 2015

Statistics
How many different ways can you put 3 distinguishable things in 10 boxes?
March 14, 2015

SOCIAL STDIES HELP! 8th
Connetions
March 11, 2015

Chemistry
What is the pH of a solution made by mixing equal vlumes of .10 M HC2H3O2, .1 M NaOH, and .05 M HCl?
March 10, 2015

physics
incorrect
March 10, 2015

physics
A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of −4.9 µC. How many electrons are transferred from the wool shirt to the plastic rod? The elemental charge is 1.6 × 10−19 C.
March 10, 2015

Chemistry
A .2688-g sample of a monoprotic acid neutralizes 16.4 mL of .08133 M kOH solution, calculate the molar mass of the solution? First of all how can I calculate the molar mass?
March 5, 2015

math
A rectangular tank measures 30cm by 15 cm by 20 cm. It contains water to a depth of 15 cm. How many metal cubes of edge 5 cm need to be placed in the water to raise the water level to the brim of the tank?
March 4, 2015

Science
What is a conducter
February 26, 2015

Physics 1
192.70
February 26, 2015

Science
What are insulaters
February 26, 2015

chemistry
An ice cube weighing 22.7 g at a temperature of 0.0°C is added to 125 mL of water at 27.1°C in an insulated container. What will be the final temperature after the ice has melted?
February 22, 2015

Geometery
From Pyth thereom,AB =root (35^2+60^2)= 5 root(193) Height CN=AC*CB/ AB= 60*35/ 5 root(193)= 420/root(193) Now find CT Tan40 = CT/ DC But DC= 60 root 2 ( it is hyp of rt triangle ADC) CT= DC tan 40= 60 root 2 * 0.84 Angle of elevation of TN is Arc Tan(CT/CN)= Arc tan (60 root ...
February 22, 2015

Geometery
A, B, C and D are on horizontal level ground and CT is vertical pole. B is 35 m due east of C, A is 60 m South of C and D is 60 m West of A. Calculate the angle of elevation of T from N. I m really suck...plz help
February 22, 2015

chemistry
How many grams of water are required to completely hydrolyze 0.54 grams of lidocaine? What type of be equation should be used?
February 19, 2015

Math
in square meters plz
February 11, 2015

Math
ok so how do I solve the problem
February 11, 2015

Math
tiles cost 28 per square meter. How much will it cost to cover the countertop with new tile
February 11, 2015

Math
what is the area of the countertop in square meters
February 11, 2015

Math
A countertop is 16 feet long and 3 feet wide
February 11, 2015

Chemistry
Are you in Mr. Leingang's class?
February 10, 2015

chemistry
If the intial rate of the reaction produces 2 moles of water vapor, H2O, per second, what is the rate at which oxygen, O2, is consumed initially?
February 10, 2015

Calculus
Graph the function f(x)=x+4/x Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find the number c that satisfies the conclusion of the Mean Value Theorem for f on [1,8] c= Notice that if you graph the tangent line to the point (c,f(...
February 8, 2015

Math
Hey Daisy. Plot your data points on desmos it'll help. Once plotted, this question is awfully easy.
February 7, 2015

Physics
A stationary observer hears a sound with a frequency of 450 Hz from an approaching car. If the car emits the sound at a frequency of 360 Hz, what would be the speed of the car? (Speed of sound 340 m/s)
February 6, 2015

CHEM
what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.
February 1, 2015

physicss
A 0.145 kg baseball pitched at 44.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 ✕ 10-3 s, calculate the average force between the ball and bat during contact.
January 29, 2015

Physics
A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.0...
January 28, 2015

physics
SOMEONE HELP ME PLEASE
January 27, 2015

physics
A boy on a 2.2 kg skateboard initially at rest tosses a(n) 8.4 kg jug of water in the forward direction. If the jug has a speed of 3.0 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.60 m/s, find the boy’s mass. Answer in units of kg
January 27, 2015

English
I have to pick a topic for an argumentative research paper, but when I think about different topics I realize that all of my ideas and support on the subjects are from other people's ideas that I have read or heard. So how do I come up with original ideas for a topic ...
January 27, 2015

Math
Samuel and Jason 3/4 of the combined earnings from Wednesday to buy a gift. how much do they spend? Is there enough left over from Wednesday's earnings to buy a card that costs $3.25?
January 22, 2015

math
repost find unknown number in the equation 9/10 - x = 1/5
January 21, 2015

math
find unknown number in the following equation 9/10 - x +1/5 what is x
January 21, 2015

math
the wheel of a bicycle has a diameterof 72 cm and are rotating with an angular velocity of 12 rad/s. determine how much time the bicycle takes to travel 100m.
January 21, 2015

Math
First week sells 6 chairs for $80 each. Next week, if chair is not sold, it will sell for 0.85 times previous week's price. Store needs to sell 6 chairs for total of $270 to make a profit. what is the last week in which all 6 chairs could be sold so that the store makes a ...
January 20, 2015

English help
I think it's hard news article.
January 7, 2015

LANGUAGE ARTS !! 8TH GRADE
YOU ARE WRONG OMFG WHY WHY WHY WHY WHY WHYW HYW LIESSSSSSSSSSSSSSSSSSSSSSS
January 6, 2015

physics
By the way, the equation is: Fg = GM/r^2 Where G = Gravitational Constant (6.67 * 10^-11) M = Earth's mass r = Earth's radius The givens are: Earth's mass = 5.98 * 10^24 kg Earth's radius = 6.38 * 10^6 m
January 5, 2015

physics
What is the distance from the earth's center to a point where your weight would be 1/25 of what you weigh at the surface?
January 5, 2015

Quick Question
When you have to pay for something weekly, does that mean every end of the week?
January 3, 2015

economics
Mutual funds are attractive to small investors because (a) the funds offer a guaranteed return on investment (b) the funds are insured by an agency of the US government (c) the funds offer the opportunity to share in an investment in a variety of stocks and bonds (d) investors...
December 21, 2014

math
t(n)
December 17, 2014

math
the third term of a geometric sequence is 25 and the eighth term is 25/32. find a, r, and t
December 17, 2014

math
that's dumb is there a different way to do it? with a formula?
December 17, 2014

math
an employee is paid $3600 for the first month. she is paid an additional 1% at the end of the second month, which means a total of $3636. she continues to receive a 1% raise each month for a full year. what is her total salary at the end of the year?
December 17, 2014

Stat
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find the probability of x successes given the probability p of the success on a given trial N=9 X=0 p=0.30
December 17, 2014

math help
thank you !
December 16, 2014

chemistry. please help drboz222
Calculate the oxygen ppm concentration of a 3.50 kg sample of lake water that comtains 2.34 mg of dissolved oxygen
December 16, 2014

Economics
What are two reasons why the values of corporations fluctuate? Explain. My answer: Competition and events in the world
December 15, 2014

language arts
GG, your lack of grammar and intelligence is very amusing.
December 15, 2014

Math
A fence 12ft high runs parallel to a tall building at a distance of 2ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
December 13, 2014

Algebra
James, Karen, and Lou are hiking. Lou forgot to bring any water. James brought 2 gallons of water and Karen brought 1 and 3/4 gallons of water. The three of them agree to divide all the water equally among them. Lou gives $2 for the water he receives, which James and Karen ...
December 11, 2014

Algebra
Our basketball team has finished 80% of its season, during which we won 40% of the games we played. What percent of the remainder of our games must we win in order to finish the season with the same number of wins as losses?
December 7, 2014

ratio and rates
Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint to create green paint. Gina mixes 4 pints of yellow paint with 3 pints of blue paint.
December 7, 2014

math
no
December 7, 2014

physics
Three blocks A, B, and C are connected by two massless strings passing over smooth pulleys as shown below, with the 3.4-kg block on a smooth horizontal surface. Calculate the tension in the strings connecting A and B, and, B and C.
December 5, 2014

Chemistry
Kc is 1.67 × 1020 at 25°C for the formation of iron(III) oxalate complex ion: Fe3+(aq) + 3 C2O42-(aq) [Fe(C2O4)3]3-(aq). If 0.0200 M Fe3+ is initially mixed with 1.00 M oxalate ion, what is the concentration of Fe3+ ion at equilibrium?
December 2, 2014

Chemistry
The equilibrium constant, Kp, equals 3.40 for the isomerization reaction: cis-2-butene trans-2-butene. If a flask initially contains 0.250 atm of cis-2-butene and 0.145 atm of trans-2-butene, what is the equilibrium pressure of each gas?
December 2, 2014

Science.. Need help ASAP!
I have the exact same test are u connexus stident
December 1, 2014

Algebra
(7.8*10 to the 12th power)*800=(7.8*10 to the 10th power)*80,000 Directions:tell whether each equation is true or false. if false, write the inequality in like terms I don't remember how to start multiplying.
November 30, 2014

Math
ASHLEY BORROWED 3 BOOKS FROM THE LIBRARY. THIS WAS 25% SHE CHECKED OUT. HOW MANY BOOKS DID SHE CHECK OUT
November 26, 2014

Physics
A 85-Kg firefighter climbs up a ladder at a constant speed of 2.5 m/s. What average power does the firefighter expend to overcome gravity?
November 25, 2014

math
what are the steps in determining how to maximize the area of a rectangle given a specific perimeter?
November 23, 2014

math
what is 1/3 divide 5/8
November 22, 2014

physics
A solid disk rotates in the horizontal plane at an angular velocity of 0.040 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.13 kg·m2. From above, sand is dropped straight down onto this rotating disk, so ...
November 16, 2014

Chemistry Buffers
Write reactions showing how each of the following buffers would neutralize added HCl. HF and NaF Express your answer as a balanced chemical equation. Identify all of the phases in your answer. HC2H3O2 and KC2H3O2 Express your answer as a balanced chemical equation. Identify ...
November 16, 2014

physics
A ball with radius 12cm rolls on a level surface, and the translational speed of the center of mass is 0.35 m/s. What is the angular speed about the center of mass if the ball rolls without slipping?
November 16, 2014

math fractions
•math - Ms. Sue, Sunday, November 16, 2014 at 12:39pm 12 •math - bob, Sunday, November 16, 2014 at 12:56pm Ms. Sue can you tell me how you got that answer please. •math - Ms. Sue, Sunday, November 16, 2014 at 1:09pm Multiples of 6: 6, 12, 18, 24 Multiples of 4: ...
November 16, 2014

math
thanks mrs. sue. I understand now how I should get the lcm but how do I figure out how many pounds of meat will be in the meat loaf? when I multiply do I work the problem like this.... 3/4 *5/6 =9/12*10/12 =90/12 =7 6/12 =7 1/2 is this correct?
November 16, 2014

math
Ms. Sue can you tell me how you got that answer please.
November 16, 2014

math
Tom is making meatloaf with 3/4 pound of turkey and 5/6 pound of ground beef. What is the LCM he should use to find the total number of pounds of meat? How many pounds of meat will be in the meat loaf? Show your work Completely.
November 16, 2014

physics
A piece of putty of mass m = 0.75 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. It collides with and sticks to a rod of mass M = 2 kg and length L = 0.9 m which pivots about a fixed vertical axis at the opposite end of the rod as shown. What fration ...
November 14, 2014

algebra
Andy hit three less field goals than three times the number of field goals Gary hit. Together, they scored 17 field goals. Write and Solve an equation to find how many field goals Gary and Andy scored.
November 11, 2014

Chemistry
What is the approximate ΔH in kJ for the following reaction as written: 2NH3(g) --> 3H2(g) + N2(g) Careful, what kind of bond does the nitrogen molecule make?
November 10, 2014

Chemistry
Arrange the following diatomic molecules in order of weakest to strongest bond: HF, HCl, HBr, and HI.
November 10, 2014

Chemistry
Which of the following ionic compounds has the highest melting point? Help: Lattice energy Select one: a. Cs2O b. K2O c. BeO d. SrO e. LiF f. CsI
November 10, 2014

physics
Sum of forces is F=mg-2.3N F=9.8*2.7N-2.3N F= 26.46-2.3 F=24.16 But F=ma 24.16N=2.7kg*a a= 8.96m/s^2
November 8, 2014

chemistry
How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?
November 4, 2014

Engineering
Have a new tutor who has failed to teach us most of his assignment, I've finally got stuck on derivation of the formula G=E/2(1+v). any help would be much appreciated!
November 3, 2014

Chemistry
If ununseptium (element 117) reacts with oxygen what would be equation of the product? Thanks so much!
November 2, 2014

Math
5/6=1/3-x
November 1, 2014

engineering
I've answered it myself i think. The liquid is being compressed therefore the change in volume should be negative. if someone could verify that'd be great
November 1, 2014

engineering
should my calculated bulk modulus of a liquid be (-)? the lookup tables i'm comparing the results too have positive values, or is it written without the (-) as a negative bulk modulus is impossible?
November 1, 2014

English
substitute the given words in and see if it makes sense the answer is when
November 1, 2014

Math
21
October 29, 2014

math
Try setting up a proportion.
October 27, 2014

math
Why would you add 2+5?
October 27, 2014

math
Where did you get the 7 from? Check again. I'll be glad to check your work.
October 27, 2014

algebra
The slope of a horizontal line is 1. The equation of the horizontal line passing through (4, 5)is _______?
October 24, 2014

algebra
Find an equation of the line that satisfies the given conditions. Through (5, 3) and (4, 7)
October 24, 2014

calc
A water trough is 7 m long and has a cross-section in the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 100 cm wide at the top, and has height 60 cm. If the trough is being filled with water at the rate of 0.3 m3/min how fast is the water level rising when ...
October 23, 2014

stats
The probability that a football game will go into overtime is 18%. In 140 randomly selected football games, what is the mean and the standard deviation of the number that went into overtime?
October 21, 2014

Science
xciojiovjeio
October 21, 2014

Math
Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 3 cubic feet per minute. If the pool has radius 6 feet and height 10 feet, what is the rate of change of the height of the water in the pool when the depth of the...
October 21, 2014

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