Friday
February 12, 2016

Posts by julia

Total # Posts: 581

criminal justice
Schlomo occasionally drinks beer with friends. His drinking doesn’t interfere with his job or personal obligations. He gets a pleasant “buzzed” feeling from two beers and doesn’t feel a need to drink more. Alcohol has not caused him any physical or ...
February 1, 2016

History of Drugs
The Great Experiment is often used when referring to? I think it is the Prohibition Era, The Eighteenth Amendment but I am not sure.
February 1, 2016

physics
A batter hits a ball, causing it to leave the bat at 135 m/s and at an angle of 18.3 degrees from the horizontal. If the baseball field is level, and ignoring the height at which the batter hits the ball, how far (horizontally, in meters) away from the batter does the ball hit...
January 27, 2016

physics
supposedly the answer to the second part of the question is y = −6.5×10−14 m any insight?
January 27, 2016

physics
In a cathode-ray tube, electrons are projected horizontally at 1.0×10^6 m/s and travel a horizontal distance 11.5 cm across the tube. How long are the electrons in flight? Express your answer to two significant figures and include the appropriate units. Find the vertical...
January 27, 2016

physics
how do you get the 1135? I must not be calculating something correct
January 27, 2016

Chemistry
Balance the equations for oxide reduction method: KMnO4 + KCl ---> MnCl2 + Cl2
January 26, 2016

math
Find the product of 5 and 4 . Express your answer in simplest form.
January 21, 2016

physics
an aluminum cylinder, of height h=2ocm and of radius r=1ocm, rests with its base on a horizontal table. Density of aluminum P=2700kg/m^3 a-calculate the weight of the cylinder take g=10N/kg b-what is the value of the force exerted by the table on the cylinder? c-deduce the ...
January 20, 2016

pre calc
Suppose you get on a Ferris Wheel that has a diameter of 40 meters and turns at a rate 1.5 revolutions per minute (the period is not 1.5 ) the height above the ground in meters, of your seat after t minutes can be modeled by an equation. Assume you get on the ride at t=0 min ...
December 9, 2015

Riddle
Reflection
November 14, 2015

southwest
5650 is compounded semiannually at 18% for 16 years
November 11, 2015

Physics
You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 45.8 N*m. Using the data in the figure below (L = 0.287 m and θ = 49.6°), determine the magnitude F of the force that you must exert on ...
November 9, 2015

math
A culture starts with 8300 bacteria. After one hour the count is 10,000. (a) Find a function that models the number of bacteria n(t) after t hours. (Round your r value to three decimal places.)
November 6, 2015

math
A wooden artifact from an ancient tomb contains 70% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)
November 6, 2015

Algebra
If one earthquake is 160 times as intense as another, how much larger is its magnitude on the Richter scale? (Round your answer to one decimal place.)
November 6, 2015

Physics
Starting from rest at t = 0 s, a wheel undergoes a constant angular acceleration. When t = 1.6 s, the angular velocity of the wheel is 5.9 rad/s. The acceleration continues until t = 19 s, when the acceleration abruptly changes to 0 rad/s2. Through what angle does the wheel ...
November 4, 2015

math
its 9mm:)
November 3, 2015

Math
First vehicle is traveling at 50 miles per hour. Second car is traveling at 65. They ate 15 feet apart when the second cars slammes on break. Will they have a empack and at what speed.
October 28, 2015

math
Sharon spent $2 on a magazine; then she spent half of the rest of her money on shoes. She spent half of her remaining money on lunch. She has $12 left. How much money did sharon start with?
October 21, 2015

Physics
From what height would a car weighing 9990 N have to fall to gain the kinetic energy equivalent to what it would have when traveling 64.87 mi/hr?
October 21, 2015

Physics
A 1600 kg block of granite is pulled up an incline that has an angle of inclination θ = 20 ° with a constant speed of 1.21 m/s by a steam winch (see Figure). The coefficient of kinetic friction between the block and the incline is 0.09. How much power must be supplied...
October 19, 2015

Physics
I don't understand this at all! use the position equation s=-16t^2 +v0t+s0 to write a function that represents the situation. Find the average rate of change from t1 to t2. a) An object is thrown upward from a height of 6 feet at a velocity of 64 feet per second.... t1=0...
October 19, 2015

Physics
A bullet is fired from a rifle that is held 1.70 m above the ground in a horizontal position. The initial speed of the bullet is 1078 m/s. Calculate the time it takes for the bullet to strike the ground.
October 19, 2015

math
geologists estimate that earths temperature rises about 10 degrees celsius for every kilometer k below earths surface. suppose it is 50 degrees celsius on the surface of the earth. What is the formula for the temperature t in degrees celsius at a dept of k km?
October 5, 2015

physics
A rock is dropped from a tree of height 22 m into a lake (depth 4.0 m) below. After entering the water, the rock floats gently down through the water at a constant speed of 1.4 m/s to the bottom of the lake. What is the total elapsed time?
October 4, 2015

science
True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
September 26, 2015

Science
True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
September 26, 2015

science
The modern atomic model includes electrons orbiting the nucleus. Which of the following parts of Dalton's atomic model was disproved by the discovery of the electron? - Atoms are tiny particles. - Atoms cannot be divided into smaller parts . - Atoms have specific mass and ...
September 23, 2015

Math
Geddy has a pool with a volume of 25.0m^3. It costs $2.35 per cubic foot (ft^3) to clean. How much will it cost to clean the pool?
September 22, 2015

language arts
ms. sue please help the characterization of the children is an important part of "The Story-Teller". which of the following quotes from the story offers the best evidence for the character of Cyril being mischievous? A. the children moved reluctantly to the window. &...
September 16, 2015

Math
the area of a square is equal to one less than one-half its perimeter. How long is each side? (A=s squared and P=4s, where s represents the side length of the square)
August 29, 2015

5th grade math
need in layman's terms, please, thank you
August 20, 2015

Math
but the 2 isn't divisible by 5?
August 20, 2015

Math
yes, it does, thank you
August 20, 2015

Math
thanks so much :)
August 20, 2015

Math
so it's 9,405,271? I'm the Grandmother and this 5th grade work is beyond me. thank you
August 20, 2015

Math
you are right, 9,805,472
August 20, 2015

Math
7 digit number no repetition of numbers digit 5 in thousands place, greatest digit in the millions place, digit in the hundred thousands place is twice the digit in the hundreds place, digit in the hundreds place is twice the digit in the ones place, digit in the tens place is...
August 20, 2015

Math
this is way out there for us, she's only in 5th grade, but thank you
August 20, 2015

Geometry
Anybody?
June 22, 2015

Geometry
A carpenter checks to see if a board is warped by laying a straightedge across the board in several directions. State the postulate that is related to this procedure.
June 22, 2015

Language Arts
Does anyone have the correct answers for #1-6 and #8-18
May 16, 2015

math
2.If a sledgehammer that weighs 18 newtons on Earth will weigh about 4 newtons on the planet Namar, then your weight on Namar would be about ___ times your weight on Earth. A. 0.25 B. 4 C. 0.5 D. Not enough information
May 14, 2015

math
thxs
May 13, 2015

math
never mind
May 13, 2015

math
is it $3.75 because the unit rate is $2.50/1 and to get 10 you multiply the denominator, 1, by 15 and what u do to the bottom you do to the other so $2.50*15=37.5 and it equals 37.5/10 which is 3.75
May 13, 2015

math
At Frugal Foods a loaf of bread cost about $1 in 1980. In 2013, the loaf of bread cost $2.50. 1.A ratio is a comparison of two amounts by division. What is the ratio of the cost of a loaf of bread in 2013 to the cost in 1980? *$2.50/1 2.Assuming the price of clothing increased...
May 13, 2015

math
maya made a sign with an area of 48 square centimeters What could her sign look like
May 5, 2015

chem
For the reaction: N2+3H2<--->2NH3 4.000 mol N2, 2.000 mol H2, and 6.000 mol NH3 are placed in a 2.000 L container and allowed to reach equilibrium. When equilibrium is established the [H2]=2.77 M. Calculate the equilibrium concentrations of nitrogen and ammonia. ...
April 19, 2015

chem
For the reaction: N2+3H2 <-----> 2NH3 1.000 mol N2 and 1.000 mol H2 are placed in a 1.000 L container and allowed to establish equilibrium. When equilibrium is established the [N2] =0.921M. Calculate the equilibrium concentrations of hydrogen and ammonia. Calculate K.
April 19, 2015

chem
For the reaction: A+B <-----> 2C (all gases) 2.0 mol A, 2.8 mol B and 1.0 mol C are placed in a 2.0 L container and allowed to reach equilibrium. When equilibrium is established [C]=0.75 M. Calculate all equilibrium concentrations. Calculate K. I am so confused!
April 19, 2015

math
June has twice as much money invested at 5% simple annual interest as she does at 4 %. If her year income from the two investment is $315 how much does she have at each rate?
March 20, 2015

English
11- Before Derrell made a serious purchase, such as a car, he would study the competition?
March 16, 2015

English
10- Before finishing the meeting, the chair of the group offered many ideas?
March 16, 2015

English
8- We should consider traveling to China this summer?
March 16, 2015

English
@Ms Sue
March 16, 2015

English
could 6 be The faculty had made recommendations for the honor society?
March 16, 2015

English
I know the answers to 3, 5, 7, and 9
March 16, 2015

English
Identify awkward or pretentious diction in the following sentences, and revise each sentence as necessary to improve clarity. 2. Let’s have a discussion of the essay you read for homework. 3. Khaya finally came to the realization that she preferred research to teaching. 4...
March 16, 2015

science
A charge of +9.0 nC and a charge of +4.0 nC are separated by 50.0 cm. Find the equilibrium position for a −1.0 nC charge as a distance from the first charge. The Coulomb charge is 8.98755 × 109 N · m2 /C 2 . Answer in units of cm.
March 13, 2015

Chemistry
I need to use those numbers to find the final concentrations for each individual solution.
February 24, 2015

Chemistry
I have to use the given concentration of 7.03 micromoles/liters to determine the concentration for the following dilutions. 1. mL stock solution-2 mL distilled water-8 2. mL stock solution-4 mL distilled water-6 3. mL stock solution-6 mL distilled water-4
February 24, 2015

English
@ms sue, how about "How did the pilot know where in the air he was?"
February 18, 2015

English
Identify the simple sentences in the following paragraph. I know the first and third sentences are simple. The air show announcer hushed. He had been squawking all day, and now he quit. The crowd stilled. Even the children watched dumbstruck as the slow, black biplane buzzed ...
February 18, 2015

geometry
i need help on a question that involves finding the "value of the variable" ive started the question but im stuck of how to continue .its a right triangle which hypotenus length is cut by a altitude line "w+9" .the lengths cut are 8 and 18 .
February 11, 2015

Science
California's volcanoes formed as a result of colliding boundaries.
February 6, 2015

Chemistry
the titration of an ascorbic acid requires 18.5 mL of .0105 M KIO3. how many mmol of ascorbic acid were in this sample?
February 4, 2015

English 10 help please
metaphoe
November 18, 2014

Trig
the angle of elevation to the sun is 65 degrees. A building casts a shadow 16m long. What is the height of the building to the nearest meter?
November 17, 2014

Algebra
You invest an initial $4,500 in an account that has an annual interest rate of 4.5%, compounded daily. How much money will you have in the account after 10 years? Round your answer to the nearest whole number.
November 12, 2014

calculus
Use l'hopital's Rule to evaluate lim x in 0 of (4x(cos 6x-1 )) / sin 3x-3x
November 8, 2014

math
Richard put a counter on 6. He counted by tens. what are the next 3 numbers he counted? My answer is: 16, 26, 36
November 3, 2014

calculus
never mind i got it thanks
November 3, 2014

calculus
A spotlight on the ground is shining on a wall 24m away. If a woman 2m tall walks from the spotlight toward the building at a speed of 1.2m/s, how fast is the length of her shadow on the building decreasing when she is 4m from the building?
November 3, 2014

Algebra
Find the dimensions of the rectangle of the largest area that can be enclosed by 200 meters of fencing
October 27, 2014

calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres. Use differentials to determine: a) by approximately how many centimetres the side length of the cube increases ? B) by approximately how many square centimetres does the surface area of ...
October 12, 2014

Calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres Use differentials to determine : (a) by approximately how many centimetres does the side length of the cube increase? (b)by approximately how many centimetres does the surface area of the...
October 11, 2014

Logic
mushroom & purple => poisonous mushroom & poisonous => purple mushroom & ~purple => ~poisonous mushroom & purple => ~poisonous
October 6, 2014

physics
An electron travels 2.7 m in 6.37 × 10−8 s. How fast is it traveling?
September 30, 2014

CHEM
In the preparation of a rock salt solution, 1.522 grams of impure rock salt was dissolved in 50.0 ml of distilled water. The total mass of the solution was found to be 51.522 grams. Calculate the weight percent of impure rock salt in the prepared solution.
September 26, 2014

math
9805472
September 24, 2014

math
I have a 15ft board I need to cut into 2 1/8 inch pieces how many can I cut
September 17, 2014

Maths
How would you convert 11 minutes into hours?
September 14, 2014

Math
The answer would be one of two choices, the first would be different, the second would be the same. The same applies for the second blank.
September 11, 2014

Grade 10 Maths
An area for planting crops is given by: A = 800 + 20x - 1/2x^2 Find the value of x which the area is a maximum
September 11, 2014

physics
bob pursley, can you answer my question. SCIENCE BIOLOGY. My name is Julia. THanks. I have till 12 am. HELPPPP
September 3, 2014

SCIENCE:BIOLOGY>
bELIEVE ME OR NOT BUT i'M PRETTY SURE I HAVE MINE RIGHT.THX FOR YOUR HELP ..NOT! tHANKS DR.bOB222
September 3, 2014

SCIENCE:BIOLOGY>
1. How many seconds do you spend in school during the week (6.5 hours/day)? 2. How many micrograms are in 12 dekagrams? 3. How many centimeters are in 5 kilometers? 4. 3.25 liters are equal to how many kiloliters? 5. how man meters are in 0.65 hectometers? 6. How many grams ...
September 3, 2014

chemistry
Dr.Bob can you answer my questions. My name is Julia.. my topic is in Science:Biology
September 3, 2014

History/ English
please help!
September 3, 2014

History/ English
What does the novel 1984 by George Orwell teach us about history? In what ways is Winston a historian?
September 3, 2014

math
Determine whether the system of equation is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2
June 17, 2014

Math
A hair product company sells three types of hair products for $30, $20, and $10 per unit. In one year, the total revenue for the three products was $800,000, which corresponded to the sale of 40,000 units. The company sold half as many units of the $30 product as units of the...
June 17, 2014

Chem
Oops 0.10 mol NaOH
May 27, 2014

Chem
When 1.10 mol of NaOH is added to 1.00 L of 0.30 M HCl the pH of the resulting mixture is: a) 0.52 b) 0.70 c) 1.00 d) 13.30
May 27, 2014

Scientific Method
B is the correct answer
May 25, 2014

English
Choose the answer that identifies the function of the gerund in the sentence. Yes, this player has worked hard on improving his strength this season.
May 24, 2014

Chemistry
Thanks :)
May 17, 2014

Chemistry
Explain why methyl red would be a good indicator for a titration of 0.25M NaOH with .025M HNO3, but a poor choice for use in a titration of 0.25M NaOH with 0.25M HCN. I'm pretty sure the first step is to find the pH of the two titrations (and then compare those to the pH ...
May 17, 2014

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