Monday

November 30, 2015
Total # Posts: 442

**science**

Specific heat capacity of solid ethanol is 2.419 J/g C. Melting point temperature of ethanol is -114.4 C/ 158.8 K. Enthalpy of fusion of ethanol is 106.4 J/g. Specific heat capacity of liquid ethanol is 2.440 J/g C. 44.0 g of solid ethanol at -134.4 C is dropped into a Dewar ...
*November 23, 2015*

**Math**

Joe borrowed $2000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in five years?
*November 17, 2015*

**science, biology**

is my answer correct ? Both genetics and the environment contribute to the height of a plant. Plants attain their traits from their parents like humans. A plants offspring comes from somewhere, and that somewhere is the parent plant. The parent plant then has traits it ...
*October 22, 2015*

**science, biology**

1. What is/are the main factor(s) that determine(s) that your plants will grow into bean plants (or other fast-growing plants that you used for your experiment) and not some other type of plant (genetics, environment, or both)? Explain your answer.
*October 22, 2015*

**algebra **

I don't quiet know where to start can anyone help guide me? Bonnie has a container in the shape of rectangular pyramid. The formula for the surface area of the enclosed space is S=lw+0.5Ph. Solve for P? P= S - lw- 0.5h P= S + lw + 0.5h P= S-lw/ 0.5h P= S/lw + 0.5h
*October 5, 2015*

**Math**

1.7 x 10^-3 = (0.0015 - x)^2 / (0.025 +1/2x) (0.025 + 1/2x) solve for x
*October 2, 2015*

**Oklahoma History**

What are the four principal mountain ranges in Oklahoma? 1.) Ouachita Mountains 2.) Wichita Mountains 3.) Arbuckle Montains 4.) _______________
*September 30, 2015*

**physics **

Knowing that in most all movement situations the mass of the system stays constant, how do you get the momentum of a system to change?
*September 20, 2015*

**physics **

Add the following vectors: 440 N at 100 degrees 905 N at 160 degrees A.1187.7 N at 128.7 degrees B.1010.4 N at 48.2 degrees C.1345 N at 130 degrees D.1013.5 N at 149 degrees
*September 20, 2015*

**Commonwealth connections academy**

Just did this one 1. D 2. A 3. A 4. B 5. D
*September 8, 2015*

**physics**

A car (m = 1870 kg) is parked on a road that rises 12.1 ° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?
*August 12, 2015*

**Managerial Accounting**

Doughboy Bakery would like to buy a new machine for putting icing and other toppings on pastries. These are now put on by hand. The machine that the bakery is considering costs $78,000 new. It would last the bakery for ten years but would require a $9,000 overhaul at the end ...
*August 1, 2015*

**Managerial Accounting **

Direct materials: 7 microns per toy at $0.32 per micron Direct labor: 1.2 hours per toy at $6.80 per hour During July, the company produced 4,600 Maze toys. Production data for the month on the toy follow: Direct materials: 70,000 microns were purchased at a cost of $0.31 per ...
*July 31, 2015*

**Criminal Justice**

I am trying to explain: Assess the impact of globalization on the U.S. criminal justice system. Compare and contrast international criminal justice systems (Civil Law, Common law, and Islamic Law and Socialist Law traditions). Discuss the impact that cyber crime and technology...
*June 20, 2015*

**CHEMISTRY**

50 ML OF ACID AT 1.836 SPECFIC GRAVITY HOW MANY GRAMS OF ACID?
*May 20, 2015*

**Calculating and Reporting Healthcare Statistics**

How do you: Calculate the total inches of documents filed per day for all clerks. Calculate the total documents filed per day for all clerks. Calculate the weekly total inches of documents filed per clerk (round to two decimal points). Calculate the weekly total documents ...
*April 23, 2015*

**linear algebra**

oh its just the transpose . nevermind
*April 21, 2015*

**linear algebra**

sorry its a little displaced but that should be a 3X3 matrix
*April 21, 2015*

**linear algebra**

Find the inverse of each of the following orthogonal matrices. A= [1 0 0 0 cos(theta) sin(theta) 0 -sin(theta) cos(theta)]
*April 21, 2015*

**Physics**

an object falls from a 3m height what is the speed of the object just before it touches the ground?
*April 6, 2015*

**Algebra 2**

A car’s headlight contains a parabolic reflector. A special bulb with two filaments is used to produce the high and low beams. The filament placed at the focus produces the high beam and the filament placed off-focus produces the low beam. The equation of the reflector ...
*March 31, 2015*

**Math**

At the local grocery store, 6 bananas and 3 oranges cost $10. Also, 3 bananas and 5 oranges cost $12. What is the combined cost of one banana and one orange at the local grocery store? Round to the nearest cent.
*March 12, 2015*

**Astro**

A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 118 million kilometers. Its orbital eccentricity is 0.5. A.Find the planet's orbital period. B.Find the planet's nearest orbital distance from its star. C.Find the ...
*March 4, 2015*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*February 19, 2015*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*February 19, 2015*

**math**

Sally is buying 6 identical shirts. The original price for one shirt is 39.99. The store is having a "buy one get one half off" sale and Sally has a coupon for an additional 25% off. The sales tax rate is 4 3/8. What is the total cost for the items Sally purchased. ...
*February 10, 2015*

**Social Studies**

how are religion and culture connected?
*January 22, 2015*

**Chemistry**

In a titration experiment involving an unknown concentration of HCl and a 0.100M solution of NaOH(aq), it was determined that it took 12.5mL of NaOH to neutralize 20.0mL of the HCl(aq). Write a balanced chemical equation for this reaction and determine the concentration of the...
*January 22, 2015*

**Chemistry**

Calculate the pH and concentration of H3O of a 0.285M HCl solution.
*January 22, 2015*

**Chemistry**

Calculate the pH and concentration of H3O+ of a 0.285M oxalic acid solution.
*January 22, 2015*

**Chemistry**

That was super helpful, thanks!
*January 22, 2015*

**Chemistry**

What is the pH of the resulting solution when 25.0mL of 0.100 HNO3(aq)are reacted with 20.0 mL of 0.175M NaOH(aq)? Is the resulting solution acidic or basic in nature?
*January 22, 2015*

**Chemistry**

What is the pH of the resulting solution when 25.0mL of 0.100 HNO3(aq)are reacted with 20.0 mL NaOH(aq)? Is the resulting solution acidic or basic in nature?
*January 22, 2015*

**Gen Science 2**

lightning is actually an enormous display of the concept of? A) chemical heating B) solar energy C) magnetism D) groundind
*January 19, 2015*

**Math**

about 24.8 million people live in texas. about 0.6 million live in vermont. how many times as many people live in texas than in vermont. round to the nearest tenth if necessary. i got 41.333 (41) as my answer.am i correct
*January 14, 2015*

**Math**

Thanks
*January 14, 2015*

**Math**

P= 1.50
*January 14, 2015*

**Math**

Laney buys 3 containers of yogurt. She has coupons for $0.35 off the regular price of each container. After using the coupons, the total cost of the yogurt is $3.45. What is the regular price of a container of yogurt? ?????? No idea
*January 14, 2015*

**Biology check please**

1. Who most influenced Darwin's idea that life could change slowly over a long period of time? (1 point) Malthus Hutton and Lyell Lamarck livestock breeders and farmers 2. Who most influenced Darwin's idea that some offspring are better suited to survival than others...
*January 9, 2015*

**american history**

The puritan ______ became the governor of the Massachusetts bay colony A.roger Williams B.william bradfords C.john Winthrop D.Arnold hutchinson
*December 29, 2014*

**help asap **

7. Verify that parallelogram ABCD with vertices A(–5, –1), B(–9, 6), C(–1, 5), and D(3, –2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals. (3 points)
*December 9, 2014*

**please check my english**

1. Which phrase, in "The Prisoner Who Wore Glasses," best describes Brille? (1 point) easygoing and generous with his friends intelligent, yet shortsighted in his political views intuitive and calculating in his appraisal of others quickthinking and quick...
*December 4, 2014*

**please help english**

1. Which phrase, in "The Prisoner Who Wore Glasses," best describes Brille? (1 point) easygoing and generous with his friends intelligent, yet shortsighted in his political views intuitive and calculating in his appraisal of others quickthinking and quick...
*December 4, 2014*

**math**

At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 80 meters and a diameter of 40 meters. It takes the wheel seven minutes to make one revolution. Write the sinusoidal function, f(t), that models the height of your chair at any time, t. I...
*November 21, 2014*

**Geometry**

It's snowing today therefore it is December.
*November 11, 2014*

**Algebra**

You have been hired by a cell phone company to create two rate plans for customers, one that benefits customers with high usage. The cell phone rates may compare usage of minutes or usage of text messaging. At 500 minutes or 200 text messages, both plans should be within $5 of...
*October 24, 2014*

**algebra**

Samir begins riding his bike at a rate of 6 mph. Twelve minutes later, Chris leaves from the same point and bikes along the same route at 9 mph. At any given time, t, the distance traveled can be calculated using the formula d = rt, where d represents distance and r represents...
*October 17, 2014*

**Geometry**

the answer is #2
*October 9, 2014*

**physics**

a Baseball player throws a ball for the outfield horizontally such that it is released 1.5 meters above the ground. if the ball is to reach second base 20.0 meters away, how fast must the ball be thrown so that is does not bounce before reaching the base
*September 30, 2014*

**Pre-Calc (Point of Inter.)**

A diagonal of a cube is a line segment of maximum length whose endpoints are vertices of the cube. To the nearest degree, what is the angle of intersection Ѳ, 0 < Ѳ <= 90° between two distinct diagonals of the same cube?
*September 28, 2014*

**4th grade math**

4 is the GCM because 3x4=12 and 5x4=20 the gcm or greatest common multiple is the largest number that both the factors(in this case 12 and 20) have in common
*September 17, 2014*

**Physics**

A 330.0 g block is dropped onto a vertical spring with a spring constant k = 234.0 N/m. The block becomes attached to the spring, and the spring compresses 0.26 m before momentarily stopping. A) While the spring is being compressed, what what is the change in the objects ...
*September 7, 2014*

**algebra 2**

wait I think it would be 0.94 not 0.96 . the answer would be 90,000
*September 4, 2014*

**algebra 2**

0.96 x = 84,600 x = 84,600/0.96 x = $ 88,125 selling price
*September 4, 2014*

**algebra 2**

89,676 but I thought I had to set up problem as an algebraic?
*September 4, 2014*

**algebra 2**

Sonia is selling her house through a real estate agent whose commission is 6% of the selling price. What should be the selling price so Sonia can get $84,600?
*September 4, 2014*

**algebra 2**

How many gallons of milk containing 5% butterfat must be mixed with 90 gallons of 1% milk to obtain 2% milk?
*September 4, 2014*

**Business/Finance**

A $120,000, 5% 200-day note dated June 6 is discounted on October 8. The discount period is _______ days. a. 142 b. 67 c. 124 d. 76 C is wrong
*August 31, 2014*

**Criminal Organization**

Write a 1,050- to 1,750-word paper, using definitions, principles, and theories from previous assignments, in which you establish a thesis regarding the control of organized crime. I am just not understanding what my instructor is asking.... Please help!!!!!!
*August 17, 2014*

**Precalculus**

A small business owner buys a truck for $20,000 to transport supplies for her business. She anticipates that she will use the truck for 5 years and that the truck will be worth $10,000 in 5 years. She plans to claim a depreciation tax credit using the straight-line ...
*August 2, 2014*

**geometry**

Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then what is \angle EZD+\...
*July 23, 2014*

**geometry**

Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then what is \angle EZD+\...
*July 23, 2014*

**math**

Using the shadow method, Norman finds the height of a tree as follows: He measures the shadow of the measuring stick (4ft) and the tree (20ft). He then uses similar triangles to find the tree's height. If the measuring stick is 3 feet long, how tall is the tree? 4 feet ...
*July 10, 2014*

**math**

George has been hired to paint the smith's house. He needs to be sure his ladder will reach the highest part of the house, so he decides to use the shadow method. The measuring stick is 3 ft., and tits shadow is 5 feet. The shadow of the house is 45 feet. The shadow of the...
*July 10, 2014*

**math**

e. Felix Baumgartner is a daredevil famous for breaking the sound barrier during a freefall on October 14, 2012. Aided by a weather balloon, he climbed to a height of 128,100 feet. More than 24 miles in the air, he was so high up that he could see Earth’s curvature. He ...
*June 17, 2014*

**Physics**

A seagull can fly with a speed of 12.5 m/s (relative to the air). (a) How long will it take the gull to fly from his perch 420. m east to the carcass of a dead fish floating in the water if the wind is from the east at a speed of 2.70 m/s? (b) Having eaten lunch (nicely aged, ...
*May 29, 2014*

**intro to computers**

1GB actually equals 4GB 2GB is 8GB
*May 24, 2014*

**English**

What is the subject and the verb of the sentence : A police officer stepped into the street and stopped cars .
*May 21, 2014*

**English**

What is the subject and the verb of the sentence : A police officer stepped into the street and stopped cars .
*May 20, 2014*

**Intro to computers**

B - because you don't know if other applications will crash...
*May 12, 2014*

**English - Check these?**

2 is actually c.
*April 30, 2014*

**Biology**

Hydrolysis uses a catabolic reaction. Explain what a catabolic reaction is and how it is useful in creating monomers from polymers.
*April 16, 2014*

**Macroeconomics**

22
*April 7, 2014*

**math**

Wilson buys pizza every month to serve to his employees at their meeting. In February, he bought three more than twice the number of pizzas he bought in January. If Wilson bought 15 pizzas in February, how many did he buy in January?
*March 10, 2014*

**Chemistry **

The activation energy of a certain reaction is 34.9kJ/mol . At 23 ∘C , the rate constant is 0.0190s−1. At what temperature in degrees Celsius would this reaction go twice as fast?
*February 23, 2014*

**college chemistry**

After 94.995 seconds the concentration of A was reduced from 0.3688 M to 0.1464 M. What is the first order rate constant?
*February 22, 2014*

**chemistry**

By how much will the vapor pressure of water decrease if a solution at 40.0°C is produced by dissolving 16.0212 g of K3PO4 (formula mass = 212.30 g/mol) with 40.8480 g of water. The vapor pressure of pure water at this temperature is 55.30 mmHg. If the solute is ionic, ...
*February 21, 2014*

**College algebra**

Things did not go quite as planned. you invested $8,000, part of it in a stock that payed 12% annual interest. However the rest of the money suffered a 5% loss. If the total annual income for both investments was $620.
*January 29, 2014*

**Reading**

The answer is B
*December 16, 2013*

**science**

is this for your home work or something? cause it is really hard!!!!!!!
*November 12, 2013*

**Computer hardware**

What circumstance would be the only reason for one to toil with processor and system bus frequencies? A. Purchasing a multi core processor B. Purchasing a chip with static ram C. Overclocking a processor D. Purchasing an AMD chipset I think it's c, but I am not sure
*October 21, 2013*

**math**

-[2x-(5x+2)]=2+(2x+7) help me please, i need step by step so that I won't get lost
*October 13, 2013*

**Principles of Democracy**

Thank you.
*September 16, 2013*

**Principles of Democracy**

There are none. :(
*September 16, 2013*

**Principles of Democracy**

1) The process of amending the constitution involves both____ and ____. 2) In general, liberal ideology supports...?
*September 16, 2013*

**math**

4/7*7/8?
*September 11, 2013*

**chemistry**

an aspirin contains .324 g of aspirin. how many pounds of aspirin are in a 500 aspirin of bottle
*September 2, 2013*

**Driver's Ed **

The lower the speed, the less time the driver has to spot dangerous situations and take action. A) True. B) False.
*July 22, 2013*

**Driver's Ed**

Driver's licenses can not be suspended for more than 365 days. A) True. B) False. In 2002, two out of every three drivers under the age of 21, involved in a single vehicle crash, were killed at night. A) True. B) False.
*July 22, 2013*

**physics**

an object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?
*July 12, 2013*

**Health Ethics**

sure
*July 9, 2013*

**Health Ethics**

are laws and regulations the problem or the solution in addressing ethical problems? what is the alternative? explain your answer in 200 words or more
*July 9, 2013*

**algebra**

How many jelly beans are there in a candy dish whose measurements are 3 in high, and has a radius of 2?
*June 26, 2013*

**Math simplify**

there was no parentheses
*May 19, 2013*

**Math simplify**

How Do I simplify this? a) 4√-27a^3b
*May 19, 2013*

**English**

Help please, I don't understand it.
*May 19, 2013*

**math**

1/6
*May 16, 2013*

**math**

2/3 * 1 1/2
*May 2, 2013*

**chemistry**

The temperature of an ideal gas in a 5.00 L container originally at 1.01 bar pressure and 25 °C is lowered to 220 K. Calculate the new pressure of the gas.
*April 28, 2013*

**physics**

A 85 kg pole-vaulter falls from rest from a height of 6.4 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.48 s after landing on the pad. (a) Calculate the athlete's velocity just before reaching the pad. m/s downward (b) Calculate the constant force exerted on ...
*April 21, 2013*