Posts by Anonymous

Total # Posts: 116,384

physics
a hammervweighing 1kg moving with the speed of 10m/s strikes the head of the nail driving it 10cm into a wall. neglecting the mass of the nail calculate the acceleration during impact and the time interval during impact and the impulse

Algerbra
Maggie's brother is 3 years younger than twice her age. The sum of their age is 24. How old is Maggie?

physics with algebra
(3.1*10^4)^2 = 9.6*10^8 3.1^2 ----> 9.6 to two significant figs but it might have been 3.05^2 ----> 9.3 or maybe 3.1499999999...^2 ---> 9.9 so 9.6 + or - .3 * 10*8

English
Is it correct to say "A deterioration in my grandfather's health and memory has just begun"?. Or is it began?

Health care
C?

Health care
The annual list of the OIG's planned projects for sampling billing in various settings (such as hospitals, doctor's offices, and long-term care facilities) to check for potential fraud is called the A. triggered review. B. OIG Work Plan. C. Deficit Reduction Act. D. ...

Health care
of the following is the coding system that was set up to describe specific products, supplies, and equipment that are used in medical practices, but that aren't listed in CPT? A. The ABC Code Set B. The National Drug Code C. CDT-4 D. HCPCS D

Physics - pendulum negative work
It is the potential energy lost, m g h

Health Care
The agency of the federal government that combats fraud and abuse in health insurance and health care delivery is the A. Office of the Inspector General (OIG) B. Centers for Medicare and Medicaid Services (CMS). C. Health Care Fraud and Abuse Program. D. Department of Justice...

Physical Science, Science
0.76 atm

chemistry
How is collaboration necessary and important for scientific advancement. use examples from the atomic theory please help

chemistry
Ok thank you

Physics
If intensity is 300 and amplitude is 200.when ampitude is increased to 800 what will be intensity?

history
People Engage in trade mostly in order to

chemistry
hydrogen sulfide gas is bubbled through a solution of iron III chloride state and explain what happens

Algebra II
L + 2 w = 164 but L = w + 6 so w + 6 + 2 w = 164

Maths
for every 4 red balloons i have there will be 9 blue. How many red balloons would i have if there are 27 red balloons?

Physics
If intensity is 300 and amplitude is 200.when ampitude is increased to 800 what will be intensity?

Science
For the reaction IO3? + 5I? + 6H+ 3I2 + 3H2O the rate of disappearance of I? at a particular time and concentration is 5.0 x 10-3 M s-1. What is the rate of appearance of I2

Math
it is desired that an investment grow to $5000 OVER THREE YEARS at a simple annual interest rate of 6% find the amount that must be invested now.

chemistry
A scientist discovers that an atom with a mass number of 14 contains eight electrons. According to the scenario, what is the atom's atomic number? 22 6 8 14 please help

chemistry
thank you

chemistry
Which of the following statements best describes p orbitals? a dumbbell with a ring around it a sphere around the nucleus a four-leave clover two lobes apposing each other Examine the three isotopes of potassium (K) below. potassium-41, potassium-39, potassium-40 Which of the ...

chemistry
thank you

chemistry
What is the difference between belief and knowledge? 

Chemistry
What is the freezing-point depression of water in a solution of 100g of sucrose, C12 H22 O11, and 500g of water? (Molar freezing point depression constant for water is -1.86°C/m.)

my success
social(helper) artistic(creator) investigative(thinker) realistic(doer)

my success
Pam is planning on meeting up with her friends to see a movie and is running a bit late. Kevin asks Pam to take a look at a project for his advertising class. He has to create an advertisement for his favorite candy. Pam gets excited about working with Kevin and starts ...

science
Seeing is believing. Do you agree or disagree with the statement? Give an example of phase changes to support your view. please help

Math
On what app is the calculator on my phone?

MATH
A ship sails north at 15 km/h but drifts westward with the tide at 8 km/h. Whatbis the resultant velocity of the ship

Math
solve (v+6)^2 -40=0, where v is a real number.

Physics
A 60-lb block rests on a rough horizontal surface. The horizontal force that just starts the block moving is found to be 30 lb. Which of the following is true for this situation?

science
The knowledge produced by science builds on old ideas and is constantly changing. State whether you agree or disagree with this statement. Explain why please help

Chemistry university
what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa? 1 Initial PH before the addition of acids and base? 2 What is the new PH after 2ml of 6.00M HCl is added to this buffer? 3 what is the new PH after 2.00ml of 6.00M NaoH is added to the original ...

English
Are these sentences grammatically correct? 1. You can get the laptop here for half the price you get it at the other store. 2. You can get the laptop here for half the price you find at the other store. 3. You can get the laptop here for half the price you get at the other store.

Chemistry
calculate the amount of heat required to raise temperature of 8.50g of water from 24°C to 29°C

math
7 topping how many different 2 topping can there be

science
What causes pollution and increases global warming?

Math
In a school library there are 35% English books,25% maths books and the remaining 250 books are on general subjects. How many books are there in the library?

math
A man goes 35m due west and then 12m due north how far is he from the starting point

College math
3 4 Interactive Examples 1 2 3 Question 3 The population of a country that you want to sell your product to is increasing at a rate of 5% per year. If the population is currently 7,000,000, what will be the population in 12 years?

science-chemistry
Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

science
Thank you

science
Oh ok so its d then?

science
Is it b for the second

science
Then is it a for the first one

math
a swimming pool is 40m long and 12m wide with a shallow end and a deep end.The shallow end is 1.3m deep and 10m wide while the deep end is 3m deep and 10m wide. The center tappers gently from the shallow end to the deep end. The pool is filled by four similar pipes each of ...

Buoyancy
1.375

English literature
From the poem the slave's dream please give one example for each of the following poetic techniques:simile,metaphor,alliteration,personification and onomatopoeia

Math
12

Maths
So notice when we add 1 to the numerator and denominator, it will be 10/15? This then simplifies to 2/3

Maths
? Denominator = 14

Maths
Let the numerator of the fraction represent x - 5 By this we can then make a statement of how x represents the denominator. From here we will create an equation and simply solve for x... (x - 5)/x = 2/3 (x - 5 + 1)/ x + 1 = 2/3 (x - 4)/(x + 1) = 2/3 [Multiply both sides to get...

Maths
403?

Maths
Mr Lee start from her home,and goes 250m due south,then 200m due east,and finally 100 due south to a shopping mall.Find the distance between her home and shopping mall.

Math
Jacqui drove at 45 km at a speed of 30 km per hour. How long did the trip take?

Math
Five kilometres is about how many miles

Phyisic
a student wanted to investigate whether or not the temperature of the water would affect the solubility of sugar she had three glasses of water each with 200 ml of water in them one was at 10 c the second a 25c and the third one was at 40 c she found that the warmer water ...

chemistry
Calculate the mass of Mg metal requied to consume 2560g of CO2 in the reaction 2Mg+CO2 ? 2MgO + C

Maths
Find the equation of latusrectum is line joining the point (-3,2)and(-3,1)

Physics
a boy stands at a distance of 175 m from a high wall. He claps his hands and hears an echo after one second. Calculate the speed of sound in air.

science
a body of moss4kg moving with a uniform velocity30m/s is brought to rest in 6sec . find the force required to stop body.

Maths
Plz the first and last term of an AP are 79 and -5 if the sum is 814. Find A. The number of terms B. Common difference.

Calculus
marginal cost is the derivative of cost with x. the cost of one more at number x so integrate your function C(x) = (.001/3)x^3 - (0.5/2)x^2 + 66.5 x + k assume when x = 0, c = 0 so k = 0 (not really true because you have to set up to build the first one but you need that for ...

Math
Simplify: 8^2 + 9(12 / 3 * 2) - 7

Algebra
For babysitting, Elissa charges $3 per hour plus an additional $2 for transportation. One evening she was paid $17

Math
A girl spent two fifth of her monthly income for family expense, one third for charity and remaining for saving. What fraction of her income does she save?

Math
1 2 4 8

Math
1 2 3

math
In a quiz, team a scored -40,10 and 0;team b scored 10,-40 and 0 and team c scored 0,-40,10.which team scored better?

Maths
The minute hand covers one complete circle (360°) in one hour (or sixty-minutes). So by proportion, 360°/60 min. = x ° / 20 min. Cross multiply and solve for x: x=360°/60 min. *20 min. =120 °

Math
Can the área of a rectangle ever be itrational?

Math
Is this correct? 4^2 - 2(3 * 5 + 1) = -16

Educational Technology helppppp
he's right hayley is 3/3 correct

school
1) What are four suggested steps to becoming familiar with early music standards? I. Implement the music standards. II. Consult with a music specialist. III. Check to make sure the music standards are satisfied. IV. Read the music standards. V. Sign up for an in-service ...

school
41) When planning a music activity, teachers should I. think of a fun activity. II. know the functioning level, musical abilities and interests of individual children in the class. III. align the activity to one or more of the National Standards for Music Education. IV. ...

school
6) Classification relies on the ability to recognize likenesses and differences. False 7) Conservation means A) that if two sets are compared and found to be equal, when they are rearranged so they do not look the same, the child determines that the two sets are equal. B) to ...

math
It takes Natasha 20 min to drive to work in the morning. She drives home using the same route, but it takes 11 min longer, and she averages 6 mi/h less than in the morning. How far does Natasha drive to work?

Math
Remainder theorem - 4x×x×x_12×x×x+11×x_5

probability
David has two boxes containing shapes. In box A there are 4 stars and 2 hearts. In box B there are 2 stars and 1 heart. David takes, at random, a shape from box A and puts it into box B.He then takes a shape from box B.

Math
(×-23)/8=6 (×-23)= 8x6 (×-23)= 48 Transposition method (×-23)= 48+23 × = 71 (71-23)= 48 ÷ 8 = 6 And. 71 is starting number. Thanks for helping

school
1) Art pieces should always be discussed, and children should explain why they drew what they did. True 2) Because young children have difficulty distinguishing reality from fantasy, puppets should not be used very often in the classroom. False 3) Children could have a keen ...

history
What would be the negative things?

ALGEBRA HELP #4
jjjjjjjjjjjjjj mn hn

world history
d tomstone etchings

math
answer rate 20%

math
A person invested 1100 rs in a company at compound interest compounded semi-annually.he received rs 1331 after one year.rate% is?

Math
Find the length of the line segment joining the points whose coordinates are (-3,1)and(5,-5)*

Math
Find the length of the line segment joining whose coordinates are (-3,1) and (5,-5) (A) 10 (B) 2 radical 10 (C) 100 (D) sqrt 10

Chemistry-Balancing equations
Write a single, balanced equation for the formation of ozone from the high-temperature reaction of atmospheric nitrogen and atmospheric oxygen.

Math
Alice reads an equal number of pages of a storybook each day. After 8days, she has 5/6 of the storybook left to read. Another 4days, she has 180 pages left. How many pages are the in the storybook?

Math
180pages

Math
Alice reads an equal number of pages of a story each day. After another 4 days, she has 180 pages left to read. How many pages are there in the storybook?

english 9 a
Flashlight

Geometry
By how many degrees does the measure of an interior angle of a regular octagon exceed the measure of an interior angle of a regular hexagon?

Math
Ali reads 900.pages in 2 weeks and 3 days how many pages will he read in the month of 31 days?

Physics
-7.5n

Algebra
Click on "Explain" if you need help. A dart hits the square dartboard shown below at a random point. Find the probability that the dart lands in the shaded circular region. Each side of the dartboard is 15in , and the radius of the shaded region is 5in . Use the ...

math
company A sells 53 cm model tv at price of 7000 whereas another B sells same model at price of 16800rs.what is ratio of their selling price?

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