Tuesday

July 22, 2014

July 22, 2014

Total # Posts: 70,520

**business**

Keeping your purpose and desired outcome in mind as you write your message is most likely to help you evaluate whether your content:

**Chemistry**

How many grams of lithium fluoride must be added to 3.5 kg of water to make a solution with a molality of 2.0 molal?

**managerial accounting**

Scott Manufacturing Co.’s static budget at 10,000 units of production includes $40,000 for direct labor and $4,000 for electric power. Total fixed costs are $23,000. At 12,000 units of production, a flexible budget would show:

**chemistry - Science**

I did all the calculations, but I got 1.09V... not sure where I went wrong with calculations

**FLUID MECHANICS**

ayayayayayay

**math**

please help fast

**math**

calculate the area of a rectangle which measures 21m by 7m.

**mgt 435**

Of the following, which is one of the most serious liabilities of the traditional, hierarchical organizational structure, as opposed to the modern, more decentralized approach? (Points : 1) Finding the most qualified CEO Responding quickly and effectively to potentially damagi...

**Physics**

A 32.0kg crate is initially moving with a velocity that has magnitude 3.92m/s in a direction 37.0 ∘ west of north.How much work must be done on the crate to change its velocity to 5.50m/s in a direction 63.0 ∘ south of east?

**physics**

In the Bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s.The mass of an electron is 9.11×10−31kg. What is its kinetic energy?

**English 9**

Writing Prompt: You have been assigned the task of introducing Romeo and Juliet to a group of students with no experience of Shakespeare or Shakespearean Theater. With a partner or yourself, outline the points you want to make in your introduction and how you will analyze and ...

**Science**

Ok, I'm really confused. Sometime ago, PSYDag said that B wouldn't apply if the water was quiet.

**Science**

Someone else said that it wasn't B.

**Science**

How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. Is it A?

**Math**

If a team wins 2 more games they would win 70% of their games. They are playing a total of 20 games. How many games have they won so far?

**math**

Ms. Black has one begonia plant. If she buys two begonia plants each year for every one she has, how many will she have in four years?

**geometry**

The focus of a parabolic mirror is at a distance of 8cm from the center the mirror is 25cm deep find the diameter of the mirror.

**Chemistry**

kkjh

**Chemistry**

Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225mL of battery acid?

**Chemistry**

What is the molality of the solution that results when 33.3g of C2H5OH are added to 76.7g of water?

**Chemistry**

liters *

**Chemistry**

How many litters of Oxygen will be required to burn 3.8 liters of propane, C3H8?

**Math**

500 pounds of apples were purchased at $0.35 per pound. The desired markup is 30% based on selling price, but 18% spoilage is expected. What should the selling price per pound be?

**Math**

Find the percent markup based on selling price, if the percent markup based on the cost is 14%. (Round to the nearest tenth percent.)

**Science**

How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. B?

**science**

Discuss the relationship between the size and weight of an object and the amount of friction that is present. Sports such as soccer involving running, stopping, jumping, and kicking. Discuss how friction helps players. Please help, I am stuck and confused.

**Chemistry- is this correct?**

50.0 ml of .30 KOH are required to titrate 60.0 ml of H2SO4. What is the M of the H2SO4? Is .13 correct?

**chemistry**

For which salt, K2SO4, Li2SO4, KClO4, or NH4Cl, will increasing the temperature of the water have the greatest change in solubility per 100 g solvent?

**chemistry**

what will be the pressure of 0.010m of oxygen gas in a 4.5L flask at a temperature of 10,000C?

**calculus help**

use the midpoint rule with the given value of n to approximate the integral. round the answer to four decimal places. integral 0 to pi/2 2cos^3(x)dx, n=4 M4=????

**math**

thanks a lot

**math**

Amy earned $93 at work yesterday. She gets paid $8 per hour, plus she received a $45 bonus. Write an equation that can be used to determine how many hours Amy worked.

**Chemistry **

100.0 ml of 0.25 M HCL are required to titrate 65 ml of NaOH. What is the M of the NaOH?

**math**

Use distributive property to write an expression equivalent to: 10 (5g + 8k)

**math**

C) 4 The area of the circle is twice the area of the triangle. Fina the area of the triangle and multiply it by two. 1/2(3.14*4)(4)= 25.12 25.12*2= 50.24 50.24 is the area of the circle so.. 50.24= pi(radius^2) 50.24/3.14= 16 The square root of 16= 4

**math**

thanks

**math**

Evaluate: 2 to the fourth power + 2 to the third power

**History8**

its not a i tried that

**Calculus Help **

Use calculus to find the area A of the triangle with the given vertices. (0, 0), (3, 1), (1, 8) A = ????

**trig**

A soccer ball is placed 12 ft away from a goal post that measures 8ft high. You kick the ball and it hits the crossbar at the top of the goal. What was the angle of elevation of your kick?

**math**

thank you

**math**

It took Aaron 4 hours to drive 232 miles. Use the equation below to determine what his average rate of speed was. D = r x t D = distance, r = rate of speed, t = time

**science**

B C and D

**science**

Please help!

**science**

Which of the following illustrates mechanical weathering? A. Carbonic acid weathers marble limestone B.As plants grow, they produce weak acids that slowly dissolve rock C.Oxidation causes weathering in rock<--- D.Repeated freezing and thawing in rocks causes weathering

**science**

So D?

**science**

Actually I think its C

**science**

Which of these statements about saltwater is correct? Saltwater freezes at a lower temperature Saltwater freezes at a higher temperature<--- Saltwater does not freeze at any temperature. Saltwater’s freezing point depends on the temperature of ocean floor

**Algebra**

Melissa Stone was just hired as a nurse at a hospital where she will earn $45,000 per year. If she receives a 6% raise each year, how much total money will she earn over the next 10 years?

**algebra**

(y^2 - y + 2)/(y + 2) I put this in calc101 . com and I got an answer with y - 3 in the quotient and got 8 in thr remainder area. My answer key says the answer is y - 3 + 8/y + 2. Can someone explain how the answer key has this answer?

**Math**

A truck costing $25,000 with a residual value of $5,000 was purchased by Rim Corporation. The truck’s estimated life is 10 years. At the end of Year 2, what is the book value using declining-balance method? Assume a depreciation rate of twice the straight-line method

**Help Ms.Sue!!! Social Studies**

Read your lesson again. I had the same questions and the lesson covers these questions well.

**Math**

. A playground has a total of 18 swings and slides. There are as many swings as there are slides. How many are there of each?

**Physic**

45π - 19π - 35π = -28.3rad/s 45π - 19π + 35π = 192radrad/s

**Physic**

Two identical tops spin with angular velocities 45π rad/s up and 19π rad/s down, respectively, about vertical axes on a table. The tops bump into one another and separate. After the collision, one of the tops has an angular velocity of 35π rad/s in its original ...

**Physic**

Diameter = 1000rev/min ÷ 60s * 2π * 2.9cm ÷ (2π * 31rev/s) Diameter = 1.56cm

**Physic**

A vacuum pump is connected to its electric motor by a belt drive (Fig. 9-40, not to scale). The motor rotates at a rate of 1000 rev/min and the diameter of the motor shaft is 2.9 cm. How large (diameter) should the pulley be if it is designed for a speed of 31 rev/s? (Answer: ...

**chemistry**

1.50 mol sample of helium at a certain pressure and temperature has a volume of 31.4 L. a second sample of helium at the same temperature and pressure has a volume of 42.4 L. Therefore the second sample contains how many moles of helium?

**Math**

Thanks, Reiny I see you answer a lot of questions for people. Thank you for taking the time out to help others that struggle in math. Your help is greatly appreciated

**math**

-2d + 18 - 4d = 60

**Physic**

13.9cm / 2 = 6.95cm F(finger) 0.026kg * 9.8m/s^2 * 6.95cm / 3.2cm = 0.553N F(thumb) 0.553N - 0.026kg * 9.8m/s^2 = 0.299N

**Physic**

You hold a uniform, 26.0-g pen horizontal with your thumb pushing down on one end and your index finger pushing upward 3.2 cm from your thumb. The pen is 13.9 cm long. Find the two forces. Force of Finger (Answer: 0.553N) Force of Thumb (Answer: 0.299N) Answers are provided ab...

**BIOLOGY**

when chlorophyll runs out of electrons where does it find new ones? The light dependent reactions use energy from sunlight to produce what 3 things?

**Biology help**

what is the name of the process that happens in the matrix of the mitochondrion? What is the name of the process that happens last in cellular respiration and takes place on the inner membrane?

**HELP!!**

Find the coodrinates of the other endpoint of the segment given (-24,15) is the midpoint and one of the endpoint is (-18,10)

**math (5)**

dr

**Pre algebra**

yes

**Math Help 2 Questions Urgent!**

actually the Pythagorean theorem is only used to find the length of a missing side of a right triangle, you use the distance formula which is square root (x-x)^2+(y-y)^2

**consumer math**

true

**Calculus Help Please Urgent!!!**

Prove that the integral on the interval [a,b] of x is equal (b^2-a^2)/2 integral a to be (x)dx = (b^2-a^2)/2 using the definition of a Definite Integral. This is the limit of a sum approach. show steps please!!! Thank you!!!

**Math**

(y^2-y+2)/(y+2)

**math**

thanks

**math**

Which equation shows the identity property of multiplication? a) 6 x 0 = 6 b) 6 x 4 = 4 x 6 c) (6x2)x4 = 6(2x4) d) 6 x 1 = 6

**CHEMISTRY HELP !!!!**

how do i get voltage cell????

**CHEMISTRY HELP !!!!**

how do i get voltage cell????

**CHEMISTRY HELP !!!!**

I have to use the formula below but I dont know how! :( Delta G = -nFE

**CHEMISTRY HELP !!!! **

Cell Designation : E (measured) = Sn I Sn^2+ II Cu^2+ I Cu Temp= 3 Celsius Temp= 276.15 Kelvin Delta G= ????? Show work please!!!!

**CHEMISTRY HELP !!!! **

Pb I Pb^2+ (1M) II Cu^2+ (1M) I Cu Temp.= room temp E cell (measured) = delta (calculated) =??? Keq (calculated) =???? Please show steps so I can do the rest. show calculations for delta G and Keq for an exemplary pair. For Pb I Pb^2+ II Sn^2+ I Sn Thank you!

**math**

Ben works 6 hours each day at his job at a local fast food restaurant. He went home sick after working 2 hours. what is the fraction of the 6 hour shift did he Not work?

**Physic**

Child 1 is 2.0 m from the axis of rotation, and child 2 is 1.5 m from the axis. The merry-go-round completes one revolution every 4.8 s. Find the angular speed of each child. (Answer: For both child is 0.278rev/s) Please show all work on how to get the answer.

**Physic**

A 220 g cart moves on an air track (a one-dimensional system in which motion is friction free) at 1.3 m/s. It collides with and sticks to another cart of mass 550 g, which was moving in the opposite direction at 0.80 m/s before the collision. What is the velocity of the compos...

**statistics**

For hair color, Brown (B) is a dominant trait and Blond (b) is a recessive trait. If one parent has pure blond hair and one parent has hybrid brown hair, complete the Punnett square and questions that follow. a) What is the probability that their first child will have pure bro...

**Math**

(y^2-y+2)/(y+2)

**Math**

(n^2 – 5n + 4) / (n – 4)

**statistics**

The mean income per person in the United States is 36,500

**physics**

A solid uniform sphere is released from the top of an inclined plane .25 m tall. the sphere rolls down the plane without slipping and there is no energy lost from friction. What is the translational speed of the sphere at the bottom of the incline?

**Science**

a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N<--- 12 2 m/s^2

**language art pllz help**

All correct just got 5/5 100%

**math**

Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The mass center of the pa...

**fizk**

Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The mass center of the pa...

**fizk**

3 - A box of mass 2 Kg lies on a rough horizontal floor with the coefficient of friction between the floor and the box being 0.5 (Figure 3). A light string is attached to the box in order to pull the box across the floor. If the tension in the string is TN, find the value that...

**Help with one limit**

I'm asked to find the limit as n approaches infinity of : [(2^(n) +1]/ [2^(n+1)]. The review we were given has [1+ 2^(-n)] / 2 as the next step, but I'm not quite sure how to make that leap myself. The final answer is 1/2. How do you solve this limit?

**physics 1**

The drawing shows an intravenous feeding. With the distance shown, nutrient solution (ρ = 1050 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

**physics**

Airplane flies at velocity of 400 mph and the wind is blowing north at 200 mph

**Programming**

Create a full program with proper instructions for the user that asks the person to choose between the following options: Find out if a year a leap year Number of days in a month for any given year Print out the number of days in a year, a leap year, and weeks in a year. After...

**Science**

a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N<--- 12 2 m/s^2

**algebra**

Write a ratio in simplified form of the area of the shaded figure to the area of the figure which encloses it. I have a square with height 5w and width 5w. Enclosing it are a right triangle on each side, which have a width of 6 and have the square's height (5w) also applyi...

**English help**

What are some interesting facts about Nikki Giovanni's writing?

**Chemistry**

I see my mistake now, thanks!

**Math**

Math - Cindy, Tuesday, April 29, 2014 at 8:44pm At Bobs diner, it costs $8.00 to purchase two hamburgers and one order of fries. The "family pack" costs 30.00 and comes with six hamburgers and six orders of fries. If the prices are constant,how much does one hamburge...

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