Friday

April 18, 2014

April 18, 2014

Total # Posts: 757

**Physics**

A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +0.8 m/s and ax = +0.9 m/s2. The y components of the puck's initial velocity and acceleration are ...

**Physics**

As a tennis ball is struck, it departs from the racket horizontally with a speed of 28.2 m/s. The ball hits the court at a horizontal distance of 19.5 m from the racket. How far above the court is the tennis ball when it leaves the racket?

**Physics**

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 390 m/s2. The ball is launched at an angle of 46° above the ground. Determine the horizontal and verti...

**Physics**

A meteoroid is speeding through the atmosphere, traveling east at 19.0 km/s while descending at a rate of 12.9 km/s. What is its speed, in km/s?

**MATH**

AMANDA TEST SCORE ON SIX TESTS WAS 94. FIVE OF THE SIX TEST SCORES WERE 88, 94, 93, 95 & 99. WHAT WAS THE SIXTH TEST SCORE?

**Math 104**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 34 said they drove alone. 24 rode in a carpool. 28 rode public transportation. 3 used both carpools and public transportation. 3 used both a carpool and somet...

**statistics**

The company policy for customer service representatives gives time off for positive reviews. If, in the first 20 calls a customer service agent handles in a day, 13 or more elect to take a subsequent survey and rate the service as “excellent”, then the company gives ...

**algebra 2 **

The label on a prescription bottle directs the patient to take the medicine twice a day. The effective ingredient of the medicine decreases continuously at a rate of 25% per hour. If a dose of medicine containing 1 milligram of the effective ingredient is taken, how much is st...

**physics**

A student is skateboarding down a ramp that is 6.88 m long and inclined at 16.9 degrees with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp 2.54 m/s. Neglect friction and find the speed at the bottom of the ramp in m/s.

**chemistry**

What is the type of glycosidic bond in case alpha?

**chemistry**

When disaccharide beta is hydrolyzed, which monosaccharide units are produced?

**chemistry**

When disaccharide alpha is hydrolyzed, which monosaccharide units are produced? A) D-glucose and D-fructose monosaccharide units B) two D-fructose monosaccharide units C) two D-glucose monosaccharide units

**Chemistry**

When disaccharide alpha is hydrolyzed, which monosaccharide units are produced? A) D-glucose and D-fructose monosaccharide units B) two D-fructose monosaccharide units C) two D-glucose monosaccharide units

**Chemistry**

What mass of solid sodium acetate, NaCH3COO, must be added to 2.50 L of an aqueous solution of 0.55 M acetic acid, CH3COOH, in order to make a buffer solution whose pH is 4.50? Assume that adding the solid does not change the volume of the solution.

**Statistics**

62.Refer to the Baseball 2009 data, which report information on the 30 Major League Baseball teams for the 2009 season. a. At the .05 significance level, can we conclude that there is a difference in the mean salary of teams in the American League versus teams in the National ...

**algebra**

f(x)=-2+5 sketch a graph

**science**

The force that every mass exerts on every other mass is called _________. A. gravity B. pull C. matter D. weight

**coversion**

150lbs= how many kg when 1kg=2.2 lbs

**Chemistry**

1.90X10^19 it would remain the same

**chemistry**

If 8.00g of methane is burned with 6.00g of oxygen. How much methane,oxygen,carbon dioxide,and water remain after the reaction is complete in grams?

**physis**

A box slides downwards at a constant velocity on an inclined surface that has a coefficient of friction uK = .58 The angle of the incline, in degrees, is most nearly:

**Chemistry**

A 1.30-L sample of argon gas is at 1.02 atm and 21.5 degrees Celsius. a. what mass of argon is in the container. b. If the temperature is raised to 500 degrees celsius while the volume remains constant, calculate the new pressure, in stmospheres.

**chemistry **

a 55g aluminum block initially at 27degrees C absorbs 725J of heat. What is the final temp. I know I need to use the equation q=m*Cs*Delta T but I cannot figure out how to rearrange the equation to isolate Tf to get the answer. Thanks for any help.

**math**

I NEED HELP TO!!!!! SOMEONE PLEASE HELP!!!

**intermediate algebra**

a basketball player scores 35 times during a gam,e. he scored 57 total point 2 for each 2 point shot and one for each free throw how many two pint shots did he make and how many free throws did he make

**Algrebra**

substitution method 3x + y=12 8x-2y =4

**Math**

Find two numbers whose ratio is 4 to 3 and are such that the sum of their squares is 100.

**math**

an artist is going to an art fair. the artist will charge $20 for small prints $45 for large prints. the artist would like to sell twice as many small prints as large prints. the booth the artist is renting costs $510. how many of each size print must the artist sell in order ...

**4th grade math**

You can divide 108 into 324 to find the product of 324 x 4 324/108 = 3 or You can Multiply 3 x 108 = 324 to find the product of 324 x 4

**LATIN**

The new book will belong to the consul

**LATIN **

How do I say "belong to" in Latin?

**LATIN**

Thanks!

**LATIN **

Filio meo multi amici erunt I have trouble understanding what this means exactly. This is all I have as a literal translation My brother many friends there are/ they are

**Physics**

A 2000 kg car is slowed down uniformly from 18.0 m/s to 5.00 m/s in 4.20 s. (a) What average total force acted on the car during that time? (b) How far did the car travel during that time?

**latin**

English to latin translation needed. Friends, hurry to our house now.

**CHEM**

Thanks a lot :)

**CHEM**

Thanks a lot :)

**CHEM**

9.60 g of hydrated nickel (II) sulfate is heated to produce 5.26 g of anhydrous compound NiSO4. Calculate the number of moles of anhydrous nickel (II) sulfate. Calculate the number of moles of water lost. What is the empirical formula of the hydrate?

**CHEM**

A sample of an unknown hydrate weighs 0.500 g and after heating it weighs 0.100. What is the percent of water in the hydrate?

**CHEM**

A 7.5 g sample of Cu(NO3)2.nH2O is heated. After the water has been driven off, 5.8 g of Cu(NO3)2 remains. What is the value of n in the empirical formula of this hydrate?

**math**

48 inches to 3 feet

**Chemistry**

Lab: Titration of NaOH (0.1 molar)to unknown solid acid. Trying to determine the equilivent weight of the unknown acid in the experiement. I am trying to figure out if I add too much base solution by accident to an unknown acid during titration would it affect the equivalent w...

**Business and Society**

In one paragraph, supported by evidence in your text and from other research, describe two forces that you believe shape the relationship between business and society. Provide two examples (one for each force you choose). Look for flaws and strengths in specific examples and a...

**skills for sucess**

Jenny has a part time job and her net take-home income is $2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries.

**language**

what does word parts mean

**liberal arts**

Select the symbol below that fills in the blank to correctly complete the mathematical statement: 8.79 ____ 8.9

**Calculus**

i dont know

**math**

A race car can travel 3 laps in 10 minuets. How long would it take the race car to complete a 120 mile long race?

**hwwt**

why do paras have to document everything a child does?

**writing**

when you write a sentence, how do you know what a verb, adj.or conjuction is?

**Writing**

I missed my friends and lunch period.

**Early Childhood**

I think it could also be c

**math**

How do you solve this by elimination method? 4x+3y=016x+3=8y

**math**

where did you get the 0.34 from?

**English**

why wouldn't employees be paid or compensated for extensive overtime? Is the branch following eimployee contractual agreements and agency/branch policies? Is the Roanoke branch operating under different salary scales/schedules than others Phoenix offices?

**sciencedd**

dndndndd

**math**

An investor bought 150 shares of an airline.She paid $60 per share for 50 shares $50 per share for 60 shares $75 per share for 40 shares what was her average price per share

**physics**

Weight=mass x acceleration due to gravity W=mg W=(3.0kg)(9.81m/s^2) W=29.43 N

**Phsyical science**

What physical quantities are governed by the quantum numbers of an atomic electron?.

**algebra 1b**

Solve the problem by stating the equation you would use to solve and then solving it. After receiving discount of 12.5% on its bulk order of printer paper, johns office supply pays $3200 . what was the price of the order before the discount ? round to the nearest dollar. in

**early childhood literacy**

it would be model the correct language

**math**

help find the simple interest rate. Find the simple interst owed for the use of the money. Assume 360 days in a year. p=$4000, r=6%, t= 1year

**math**

help find the simple interest rate. Find the simple interst owed for the use of the money. Assume 360 days in a year. p=$4000, r=6%, t= 1year

**Math**

Help Homework : MaKE A TABLE:relate primeter and area Amaya has 24 inches of ribbon she can glue around the edge of a rectangular gift box lid. if she wants to use all the ribbon without any overlapping, what are the length and width of a gift box lid with the greatest area?

**Ant 101**

Modernization theory suggests

**Economics**

Provide an alternative explanation to the one given in the text for why isoquants cannot cross.

**Economics**

Marginal Cost (MC): $5 per unit Fixed Cost (FC): $20 Total Cost (TC): $25 Average Variable Cost (AVC): $5 FC is always going to be constant at $20; however, VC is the change in cost as an increase in cost of product to produce more.

**Economics**

2. Advertising can inform buyers, but sellers must incur costs to advertise. If so, advertising can result in higher prices to consumers. Does this mean advertising is economically inefficient? If not, explain how it can simultaneously create value and increase market prices.

**acc 100**

95,000

**math**

Ever wonder how much a house “actually” costs? Consider Alex and Sabrina who purchased a house with a selling price of $249,000.00. They managed to put 15% down and were approved for a 30-year conventional loan at 7% to cover the remaining $211,650.00. Their new mont...

**Math**

Suppose Kevin and Jill both deposit $4000 into their personal accounts. If Kevin’s account earns 5% simple interest annually and Jill’s earns 5% interest compounded annually, how much will each account balance show at the end of 5 years? Calculate the difference betw...

**math**

If 611 men at a conference comprise 65% of all people at the conference, how many people are at the conference?

**algebra 2**

b/3 + 6=82

**physics**

Di=DoF/Do-F Substitute values... Do=390 mm

**Math**

Maya bought a car for $15,000. To pay for it, she took a bank add-on interest loan at an annual interest rate of 9%. The loan term is 5 years. How much interest will she pay and what are her monthly payments?

**statistics**

Musical styles other than rock and pop are becoming more popular. A survey of college students finds that 48% like country music, 30% like gospel music, and 10% like both. What is the conditional probability (±0.01) that a student likes gospel music, given that he or sh...

**chemistry**

5. How many moles of magnesium were consumed in the reaction? Open the Data window and click on the flask to provide evidence that this answer is correct. 6. Could this experiment be performed in the smaller 50 mL Erlenmeyer flask?

**Health/ Math**

A healthy amount of body for young men is 8 to 20 percent of body weight. Calculate the range of body fat, in pounds, for a young man who weighs 150 pounds and for a young man who weighs 185 pounds.

**Math**

If a food item weighs 120 grams and its composed of 77 grams of carbhydrates, 19 grams of fat, and 24 grams of protein, what is its total calorie count? Carbs and protein each provide each provide 4 calories per gram and fats provide 9. Thanks for all who will help.

**social statistic**

what is the z-score for a raw score if 89?

**math**

what's 60% of $47,000.00

**Economics**

how to calculate Qd=15.0-0.2P

**chemistry**

How many grams of sodium chloride, NaCl (fw 58.44), are required to prepare exactly 200 mL of a solution that is 600 ppm in sodium ions?

**physic**

A force of 12 N acts on an object of mass 10kg and moves it with a constant velocity across a floor. What is the coefficient of fiction between the object and the floor?

**Thanks Ms. Sue**

I'm going to read more about Robert Frost. He seemed to have jad quite a life. Thanks Again! Dee

**Cisco**

How many formula units are in .25 mole of Na O ? 2

**organic chemistry**

how do you propose a synthesis of a triphenylmethanol using a benzene, a formaldehyde,and any other inorganic reagents?

**MATH**

If $605 is invested in an account that earns 20.25%, compounded annually, what will the account balance be after 25 years? (Round your answer to the nearest cent.)

**MATH**

Find the cost of a home in 20 years, assuming an annual inflation rate of 4%, if the present value of the house is $285,000. (Round your answer to the nearest cent.)

**physics**

A 68.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.700 and 0.450, respectively. (a) What horizontal pushing force is required to just start the crate moving?

**Half-Life**

If the half-life of a radionuclide is 1 month, is a sample of it completely decayed after 2 months?

**math**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools and public transportati...

**math**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools and public transportati...

**physics**

An 845 N sled is pulled a distance of 180 m. The task requires 1.38 x 104 J of work and is done by pulling on a rope with a force of 122 N. The rope is held at _____° above the horizontal.

**Physics 2**

A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block and the block slides on a...

**physics**

Nuclei that has the same number of protons, but may contain diff number of neutrons.

**Science**

c thick carpet

**algebra**

(1-(1/x)) / (1-x) = ? please help i don't know what to do next.....

**Math**

-x=-20+3y x=20-3y 5(20-3y)+3y=40 100-15y+3y=40 100-12y=40 -12y=-60 y=5 -x-3(5)=-20 -x-15=-20 -x=-5 x=5 check -5-3(5)=-20 -20=-20 5(5)+3(5)=40 25+15=40 40=40

**math**

42/16 21/8

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