Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 746

**maths**

assuming the brain is shaped as a hemispere, find the circumference of the brain if the volume is 1.3KG

**maths**

assuming the brain is shaped as a hemispere, find the circumference of the brain if the colume is 1.3KG

**maths**

hi because i put all the numbers in, and the answer didnt seem right, what im confused by is what i do with the 4% figure, if i even dod anything with it, im sure its not as easy as putting in all the numbers

**maths**

the blood alcohol concentration(BAC)in the uk is 0.08%. A well known formula for calculating BAC percentage is widmarks formula BAC%=5.14A/rW -0.015H Where A is the total alcohol consumed in ounces, W is the body weight in pounds, r isthe alcohol distribution ration (0.73 for ...

**maths**

the blood alcohol concentration(BAC)in the uk is 0.08%. A well known formula for calculating BAC percentage is widmarks formula BAC%=5.14A/rW -0.015H Where A is the total alcohol consumed in ounces, W is the body weight in pounds, r isthe alcohol distribution ration (0.73 for ...

**maths**

a bullet weighing 8.1g is found to have a kinetic energy of 1 kJ, find its velocity

**maths**

sorry where did you get 16 from?

**maths**

the rate of the fall of an object can be determined by the formula h=1/2gt^2 where h is the height, g is the acceleration due to gravity and t is time in seconds. If a gun is fired 5 feet above the ground and level to the ground, how far would the bullet travel if its velocity...

**Math**

Thanks!

**Math**

Solve the equation My answer-60

**Math**

X/5=12

**Chemistry**

2NaOH + CuSO4 = Na2SO4 + Cu(OH)2 100g of Cu(OH)2 is needed. Assuming 100% yield, how much of 1M NaOH and 0.5M CuSO4 must be used in mL? Any help would be awesome- even a formula on how to solve

**chemistry**

Unsure how to solve this without a formula... I think its combustion analysis? CxHy + O2 --> CO2 + H20 CxHY has a MW=78g/mol. 100g of CxHy yields 338g CO2 and 138g of H2O. What is the formula CxHY (what are x and y)? Balance the reaction equation. Any help at all is appreci...

**ps 65**

Susan ate part of pizza.She ate more than 1/3 of the pizza. How much of pizza might Susan have eaten?

**MATH**

0.008 x 300 = Round to 2 decimal place

**Finance**

Determine the present value if $5,000 is recieved in the future(ie. at the end of each indicated time period) in each of the following situations. 5% for 10 years, 7% for 7 years and 9 % for 4 years

**health**

Do you think that the HIPAA has been effective?

**Math**

I am trying to help my son and I understand the question -just not sure how to get there as I am not understanding probabilities and combinations which I believe this is.

**Math**

there are 8 students auditioning for a play and there are 56 possible outcomes. How many roles are there?

**biology**

I would say that theories are somewhat of temporary ideas. It's a general statement regarding something, but it isn't necessarily 100% fact, or otherwise a "law".

**World Civilizations**

I think B is correct :)

**Physics**

So I got 131083.33 J. Is that correct?

**Physics**

Ah, I see, thank you! I got 314600 J is that right? I did 1/2*m*v^2.

**Physics Please check my answer**

I got 715 J. Steve, is this right?

**Physics**

I don't know how to calculate the energy of the explosion.

**Physics**

Well it doesn't tell me about the third piece. I'm just stuck on this problem.

**Physics**

A 13 kg asteroid is traveling through space with velocity v = 110 m/s when it breaks up into three equal pieces. One piece is left at rest, and a second one continues with same velocity. What was the energy of the explosion?

**Physics**

Help?

**Physics**

Calculate the impulse (in kgm/s) received by a football when it's kicked in a kickoff. The ball has a mass of 0.27 kg and travels a horizontal distance of 68 m. The ball is kicked at an angle q of 20.5 with the horizontal and spends 2.276 seconds in the air.

**Psychology**

The question that I have is how is a positive reinforcement going to teach a child or person not to repeat the wrong behavior.

**grammar**

Select the correct sentence: a. We will retreat the patient after we re-create his chart. b. We will retreat the patient after we recreate his chart. c. We will re-treat the patient after we re-create his chart. d. We will re-treat the patient after we recreate his chart. I am...

**Grammar**

Thank-you!

**Grammar**

1.Select the correct sentence: a.She is younger than him and me. b.She is younger than he and me. c.She is younger than him and I. d.She is younger than he and I. 2. Select the correct sentence: a. They, theirselves, had a happy holiday celebration. b. They, themselves, had a ...

**physics**

want to bring a weight of 1 kg suspended at a height of 5 feet, slowly down so that it takes 1 min to reach down.how do i make this working

**finance**

Suppose a zero-coupon bond is selling for $614.00 today. It promises to pay $1,000 in exactly 10 years with annual compounding. What is the firm’s after-tax cost of debt if this is its sole debt outstanding (assuming the firm is in the 20% tax bracket)?

**Chemistry**

32g*.45gMg/100gDuralin*1mol/24.305gMg 0.005924707mol Mg

**Chemistry **

Duralin is an alloy of aluminium containing 4.5% manganese, 3.5% copper, and 0.45% magnesium. How much magnesium is present in a 32 g sample of this alloy? Answer in units of mol

**Pre-Algebra**

m/9=m/18+4/2

**pre-Algebra**

17x-22x=1/2

**math**

Eric is putting together alien toys called zerg and Borges for the display window in a toy store. He has a box of alien body parts that contains 45 heads and 55 feet. Each zerg must have one head and three feet.each Borg must have four heads and two feet. How many zergs and ho...

**Biology**

1. Given the following concordance rates, is the identified trait primarily genetic or environmental? Explain. MZ Twins DZ Twins Height 0.94 0.44 Measles 0.95 0.87 Migraine headaches 0.80 0.39 Body fat percentage 0.73 0.22

**Biology**

The intracellular fluid concentration is 300 mOsm/kg. The extracellular fluid concentration is 280 mOsm/kg. The net movement of water is in which direction?

**Biology**

The intracellular fluid concentration is 300 mOsm/kg. The extracellular fluid concentration is 280 mOsm/kg. The net movement of water is in which direction?

**Biology**

Thank you for the site that does give me ideals of what is needed just wasn't sure.

**Biology**

Draw a Punnett square to demonstrate the inheritance of cystic fibrosis with both parents being carriers

**Biology**

The father of a mating pair expresses Huntington disease. The mother is healthy. What is the recurrence risk for the offspring? Draw a Punnett square to demonstrate the inheritance.

**Acc/230**

Provide an example from the text or the Internet that demonstrates a situation in which a company’s net profits appeared good in the statements, but the gross or operating profits presented a different picture. Discuss how this might have occurred. Respond to the followin...

**Chemistry**

1. calculate the volume of concentrated HNO3 (68%)that is needed to prepare stock solution 0.25M in 1000mL volumetric flask. (density HNO3 = 1.513 g/cm^3) 2. from above stock solution, determine volume needed to dilute to 500mL volumetric flask that contained 10 times dilution.

**Spain**

I don't have a book, its on backordered and I have homework to do.

**Spain**

What cultural aspects of the Moors can be found in Córdoba and other Southern cities in Spain?

**Spain**

After the Visigoths, what group invaded the Iberian Peninsula? How long did their reign last?

**Social Studies**

How did the Visigoths, who practiced Christianity, come to practice Catholocism?

**Social Studies**

Who were the Visigoths and what was their most important contribution to Spanish culture

**Spain**

Who were the Visigoths and what was their most important contribution to Spanish culture?

**Europe**

What is unique about the geography of Spain compared to other European countries?

**math**

1. Consider the following scenario: A random sample obtained from a population has a mean of µ=100 and a standard deviation of σ = 20. The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and...

**math**

1. A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?

**MATH**

A protected area was stocked with 1500 deer of a certain species in 1995. The deer population in 2010 was found to be 3350 deer. Let t be the number of years after 1195. Find the deer population at t=3

**calculus**

find a point on the curve x^3 + y^3 =2xy other than the origin at which tangent line is horizontal

**English**

The actions of many of the characters in The Crucible spring from a complex web of motivations. Some of the characters later decide that they have chosen the wrong action and change their behavior. This switch is, again, often motivated by a number of factors. Compose a one-pa...

**math**

If you begin with 3000 fish in a pond and 20% die off each year, yet 1000 more are added each year, how many would you end up with at the end of 10 years?

**Math**

Six friends want to buy pizza and need to decide between two deals. The first deal is for two pizzas for $7.00 each for a pizza with a 10 inch diameter. Or a second deal with one pizza with a 14 inch diameter for $15.00. The friends decide to buy the offer with the most pizza ...

**Psychology**

Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or away from the sound. Kara is having difficulty with: A. sensation. B. perception. C. stimul...

**Psychology**

i know but there is no REM in the list. REM is stage % This only list 1-4

**Psychology**

im thinking stage one bcuz he was 5 mins into his sleep. Now he was Dreaming which is Stage 5 REM

**Psychology**

Uncle Billy fell asleep in front of the television again. Five minutes later a noise from the kitchen awakened him. He sat up looking a bit dazed and explained, "I was having something like a dream. I saw my first bicycle, Old Blue, just as bright and shiny as it was when...

**Psychology**

Young adults in their early twenties spend: A. ten percent of their total sleep in stage 1. B. 20 percent of their total sleep in stage 2. C. half of their total sleep in stage 2. D. half of their total sleep in stage 3. Answer C

**Psychology**

When physical energy has resulted in a response in a sense organ, it is clear that: A. perception has taken place. B. the activation is the result of stimulus. C. the brain has interpreted the event. D. a single isolated sense is now perceiving the event. Answer:A

**management science**

Suppose the results of an IQ test are normally distributed, with a mean of 10 and a standard deviation of 16. If 150 people took the test, how many do you expect would score between 95 and 130?

**Math (Algebra)**

John=112 beads Bob=91 beads Dale=70 So john have 42 bead more than Dale

**Language Arts**

Which poem compares an athlete's drive to compete to a wild animal? A."The Women's 400 Meters" B."To James" C."Slam, Dunk, & Hook" My answer is C.Am I right?

**6th grade grammar**

Put brackets [ ] around the adverb in each of the following sentences. Write how if the adverbs tell how, when if the adverbs tells when, or where if the adverb tell where the action takes place. 1.Her grandmother said, “You cannot wear it now!” Please Help!

**physics**

five joules of work are needed to shift .5 c of charge from one place to another. the potential differences between the places is

**physics**

when the voltage across a resistor is v the power delivered is p. if the voltage if doubled to 2v, the power delieverd becomes

**physics**

a fish that you are looking at from a boat seems to be 20cm below the water surface. the actual depth of the fish is

**physics**

waves in a lake are observed to be 5 cm in length and to pass an anchored boat .8 s apart. the speed of the wave is

**physics**

sound can not travel through

**physics**

how much energy is stored in a 9 volt battery rated at 10 a hour

**physics**

five joules of work are needed to shift .5 C of charge from one place to another. the potential differences between the places is

**college physics**

a bus that is traveling at 30.0km/h speeds up at a constant rate of 3.5m/s2. what velocity does it reach 6.8s later?

**college physics**

a bicyclist rides off a flat roof at 13.4m/s, the roof is 3.6m above the ground, how far from the edge of the building does the bicyclist land? round the answer to the nearest meter.

**physics**

A birthday candle 4 cm high is 10 cm from a converging lens whose focal length is 15cm. Use a ray diagram on a suitable scale(say,1/3 full size) to find the location of the image, its height,and whether it is erect or inverted, real or virtual.

**physics**

A coin is placed at a focal point of a converging lens. Is an image formed? If yes, is it real or virtual , erect or inverted, larger or smaller than the object?

**physics**

A leaf frozen into a pond in winter is 40mm below the surface of the ice. How far does the leaf seem to be ?(n=1.31)

**physics**

a picture frame 25 kg hung over a nail by a string attatched to two hookes in the upper bar . find tension using parallelogram law

**math**

sonya spent 3/8ths of her money and had 15 dollars left what did she start with

**Business Law**

Agile Corporation borrows $1 million from Hi Finance Company (HFC). Agile signs a financing statement that describes the collateral, its inventory and proceeds, and HFC files the statement in the appropriate state office. Using the same collateral, Agile later borrows $500,000...

**business math**

Janet Home went to Citizens Bank. She borrowed $7,000 at a rate of 8 percent. The date of the loan was Sept 20. Janet hoped to repay the loan on Jan.20. Assuming the loan is based on ordinary interest, Janet will pay back interest on Jan.20 is?

**business math**

Given interest of $11,900 at 6 percent for 50 days (ordinary interest), one can caculate the principle as?

**business math**

Christina Hercher borrowed $50,000 on a 90 day, 8 percent note. Christina paid $3,000 toward the note on day 40. On day 60 she paid an additional $4,000 using the U>S. Rule. Christina's adjusted balance after the first payment is?

**business math**

Jnaet took out a loan of $50,000 from Bank of America at 8 percent on March 9, 2006 which is due on July 8, 2006. Using exact interest, the amount of Janet's interest is?

**business math**

Joyce took out a loan for $ 21,900 at 12 percent on March 18, 2007. Which will be due on Jan 9, 2008. Use ordinary interest, Joyce will pay back on Jan 9 a total amount.

**business math**

Matt Kaminsky owns a new Volvo. His June monthly interest was $400. The rate is 8 1/2 percent. Matty's principle balanve at the beginning of June is ( Use 360 days)

**business math**

Joan Roe Borrowed $85,000 at a rate of 113/4 percent. The date of the loan was July 8. Joan is to repay the loan on Sept 14. Assuming the loan is based on exact interest, the interest Joan will pay on Sept 14 is?

**math**

use only a compass and a straightedge to construct a segment congruent to CB and angle congruent to U ACB

**math**

gabe went to the amusment park with $40 to spend.His ticket cost $26.50.Write and solve an inequality to show how much he might spend on souvenirs and snacks?

**6th grade math**

n/4+32=72

**6th grade math**

n/4 +32=32 I can get it n/4=40 but not sure how to get n by itself????

**pysics**

A home run just clears a fence 105m from home plate. The fence is 4.00m higher than the height at which the batter struck the ball, and the ball left the bat at a 31.0 degree angle above the horizontal. At what speed did the ball leave the bat?

**physics**

A canon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?

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