# Posts by shawn

Total # Posts: 578

**Physics**

A ship maneuvers to within 2500 m of an island's 1800 m high mountain peak and fires a projectile at an enemy ship 610 m on the other side of the peak, as illustrated in Figure 3-29. If the ship shoots the projectile with an initial velocity of v = 256 m/s at an angle of...

**Physics**

A spy in a speed boat is being chased down a river by government officials in a larger craft. If the spy travels at 26 m/s and the officials travel at a speed of 14 m/s, how far from each other will the two vessels land after they fly off a 5.0 m waterfall?

**algebra**

What is the quotient if the dividend is 1/2 & the divisor is 1/8?

**intermediate algebra**

x^2-25/x^2+11x+24

**Business Finance**

2,102,000

**Physics**

a)91.0 km b)53.5 km/h

**business math**

Is the answer Mel will $500

**US History (Finals Tomorrow Pleasee Help)**

what were the important political parties since the election of Andrew Jackson as president to the end of the reconstruction, when the country was left with only two major parties, racially and regionally divided? Include third parties. What did they stand for. Who voted for ...

**US History (Finals Tomorrow Please Help)**

Keeping in mind how the expansion of U.S. territory westward threatened the delicate balance of power in congress between free and slave states and Lincoln's stance on slavery, describe how key events (such as land acquisitions, agreements about how new territories should ...

**u.s history**

Keeping in mind how the expansion of U.S. territory westward threatened the delicate balance of power in congress between free and slave states and Lincoln's stance on slavery, describe how key events (such as land acquisitions, agreements about how new territories should ...

**u.s history**

what were the important political parties since the election of Andrew Jackson as president to the end of the reconstruction, when the country was left with only two major parties, racially and regionally divided? Include third parties. What did they stand for. Who voted for ...

**physics**

you spend 30.0 minutes on a stair-climbing machine, climbing at a rate of 80 steps per minute, with each step 8.00 inches high. If you weigh 150 lb and the machine reports that 690 kcal have been burned at the end of the workout, what efficiency is the machine using in ...

**Physics**

How did you get the first part?

**Math**

what is the apr if the amount Financed $3500; Interest Charged $ 675; Number of Payments 24

**spanish**

What word best completes this sentence. ¿Dónde están Uds.? (Está) (Estás) (Estoy) (Estamos) en la clase de ciencias naturales.

**spanish**

What word best fits this Sentence. ¿Dónde están Uds.? (Está) (Estás) (Estoy) (Estamos) en la clase de ciencias naturales.

**spanish**

What word best fits this sentence? Que necesitas para la clase de ciencias naturales?________ un diccionario! (Necesitamos) (Necesito) (Necesitan) (Necesita)

**spanish**

Which word best fits this sentence. La clase de ciencias sociales es (facil) (aburrida) (dificil) (divertida). Hay mucha tarea todos los dias.

**Spanish**

I am trying to complete this Paragraph using these 7 words. 1. eres 2. soy 3. aveces 4. deportista 5. segun 6. le gusta 7. se llama. Some of the words can be used twice. Como se llama tu amigo.__________1. Kiko. Que _________2.hacer? Pues,__________3. practicar deportes y ...

**spanish**

Can you give me a example of what two friends do and don't like written in Spanish in an Essay.

**calculus**

Given f(x)=sin(x)-2cos(x) on the interval [0,2pi]. a) Determine where the function is increasing and decreasing. b) Determine where the function is concave up and concave down. ________________________________________ I know: f′(x)=cos(x)+2sin(x) f″(x)=-sin(x)+2cos...

**math**

14/15=2x

**english**

the comment of one little boy was especially movinng

**spanish**

How do you say 5:20,10:45,1:15,7:30,6:42 all in spanish

**Business/entrepreneur**

Describe how the owner uses capital and human resources to ensure revenue or control.

**math**

how can estimating help you add two- digit numbers?

**math**

simplify 20 minus 16 divided by 4 times 5 plus 10

**help please**

i think is D

**psychology**

The blind man and the elephant is a metaphor that shows how

**Information literacy**

Which of the following is an article from a popular magazine?

**algebra 1**

7x+8(2y+2x)

**statistics**

For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The general population of ...

**math 111c**

how long will it take for $2600 to grow to $20,400 at an interest rate of 6.1% if the interest is compounded continuously?

**Psychology**

kay Thanks

**Psychology**

wait can it be C?

**Psychology**

kay thanks

**Psychology**

Dr. Kyle shared the newspaper clipping with his class. "This is an unusual case, but I believe the punishment phase of the trial would have been different in another state. The crime was committed, but the defendant is not in touch with reality most of the time." Dr...

**math**

10. Use this figure to answer the following six questions in the essay box. is a diameter. is a tangent. a. m1 and m2b. m3c. m d. m4e. m5f. m

**Into to busineess**

How can lean manufacturing and near-sourcing help a company gain a competitive edge and prepare for the future

**algebra**

27.17 96.65

**math**

Convert to decimal notation. 2/3

**algebra**

The area A of a parallelogram with base b and height h is given by A= bh. Find the area of the parallelogram when the height is 15.4 cm and the base is 6.5cm

**algebra**

The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.

**trig**

if point P is a point on the terminal side of 0, and 0 is in standard position, find sin 0,cos 0 and tan 0. 1. P(-6,8) 2. P (1,3) 3. P (-2,-40), 4. P (-5, -12)

**trig**

If cos 0 = - 1/2 and tan 0 > 0, find the quadrant that contains the terminal side of 0, and then find the exact values of the other five trig functions of 0.

**trig**

if sin 0 > 0 and tan 0 < 0, what quadrant contains the terminal side of 0.

**Math**

The Great Pyramid of Giza has a square base with side length of 755 ft. and an original height of 481 ft. Determine its original surface area to the nearest square foot.

**Physics**

what is the formula used to find time with an Vo at 0, Vf at 22 m/s2, and a constant velocity at 1.7 m/s2?

**Algebra Please Help**

I have been out of school for a long time and not understanding these questions. Please help why is 5^0=1 can you explain when (-3)^n is positive and when it is negative.

**com155**

Did the recommendation change the way you previously thought about buying vs. leasing a car?

**Chemistry**

Really? This is your equation for part A? **Please do not use this or it will be wrong..

**Chemistry**

Please help! Answer the following for a body centered unit cell. Crystalline Solids Program Answers should be numerical, set r = 4.0. edge in terms of r, the lattice pt radius: face diagonal in terms of r, the lattice pt radius: body diagonal in terms of r, the lattice pt radius:

**Chemistry**

Please help! Answer the following for a body centered unit cell. Crystalline Solids Program Answers should be numerical, set r = 4.0. edge in terms of r, the lattice pt radius: face diagonal in terms of r, the lattice pt radius: body diagonal in terms of r, the lattice pt radius:

**Chemistry**

Based on the results of problems 8 and 9 if the heat of formation of water is -286 kJ/mol, The H ffor CaO(s) is kJ/mol.

**Chemistry**

When 0.934 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 383C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...

**Chemistry Lab**

If the molecular mass for a chemical is 151.97 g/mol and the enthalpy of formation is -1128 kJ/mol, the heat change will bekJ when 10.0 g of this chemical is formed.

**Chemistry Lab**

When 0.671 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 109C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...

**pre-algebra-is my answer right**

5(2/5)-5/6=

**computer science**

What is an assembly language

**Calculus**

A baseball player hits a line drive to center field. He runs from second to third at 20 feet/sec. How fast is the distance from the runner to home plate changing when he is halfway to third base?

**Physics**

A 0.20-kg block rests on a frictionless level surface and is attached to a horizontally aligned spring with a spring constant of 40 N/m. The block is initially displaced 4.0 cm from the equilibrium point and then released to set up a simple harmonic motion. What is the speed ...

**Physics**

Thank You

**Physics**

The answer is 2450 J/K but I can't figure out how to get that.

**Physics**

The c with the line through it is a degree symbol, and the e is a ^ symble. I am sorry the computer put it in that way.

**Physics**

A 2.00-kg block of ice is at STP (0¢XC, 1 atm) while it melts completely to water. What is its change in entropy? (For ice, Lf = 3.34 „e 105 J/kg)

**American History**

1. True 2.b. 3.d. 4.a. 5.a.

**American History**

1.Did William Garrison and John Brown promote the same cause? true or false 2.The two most decisive battles of the Revolution were a. Trenton & Sarotoga b. Sarotoga and Yorktown c.Yorktown & Fallen Timbers d. Yorktown & Long Island 3.All of the following colonies were founded ...

**Chemistry**

-6.25

**Statistics**

Statistical Techniques in Business and Economics 15 edition three years after this post STILL has all the answers wrong for this section. 19. Correct answer is 97 21 correct answer is 196 23 correct answer is 554 25. E=.04,Z=1.96,p=.6, find N. N=576.24=577(round up)

**chem**

Calculate the number of moles of the indicated ion present in each of the following solutions. Na+ ion in 1.20 L of 0.183 M Na2SO4 solution = ?mol

**Chemistry**

1.8

**calculus**

find the first derivative of y=cos(/9t+11

**Math**

find the the 2nd derivative and set equal to zero in order to find inflection points of the function f(x)=1/(5x^2+4)

**math**

It is grater than 7 tens and less than 8 tens. The number has 4 ones

**algebra**

Use the distributive property to write an equivalent variable expression. -5(4j-1)

**chemistry**

how much energy is required to heat 1.00L of water from 20degrees celcius to 90degress celcius

**math**

1/10

**math**

adam frog can jump 4 times as far as sonya frog. sonya frog can jump 8 inches. use a picture and a number sentence to tell how many inches adam frog can jump

**math**

selecting three (3) coins, but assume that there are 5 dimes, 4 nickels, and 2 quarters. In how many possible ways can the selection be made so that the value of the coins is at least 25 cents?

**chemistry**

What is the freezing pint of 0.0091 m aqueous sodium phosphate, Na3PO4? Assume that sodium phosphate is a strong electrolyte and it functions ideally in solution. (express your answer in degrees Celsius)

**English**

Dangling modifiers - are these right? Second entry is my corrected version. 1. In 1883, massive destruction was caused by the eruption of the volcano Krakatoa, an event recently examined in the book Krakatoa: The Day the World Exploded. In 1883, the eruption of the volcano ...

**Statistics**

VW Golf: $250 Saab: $300 Mercedes $4200 Jaguar $300 Expected profit for 500 customers: $2,545,000

**hardware**

What is the maximum frequency output for a square wave from the HP 33120A Waveform Generator? I found the HP 33120A Waveform Generator on the Agilent website but I'm not sure how to figure out the problem.

**CJS230- Corrections**

I looked over the website you provided, and it gives some of what I am looking for, but still not all. My instructor has not provided me anything else to go on so Im kind of on my own here. Thank you for the website link though. Any other help would greatly be appreciated.

**CJS230- Corrections**

Final Project: A World Apart Germany and America · Resources: Appendix A and Corrections: The Fundamentals · Select a country outside of the United States and research its correctional system. · Write a 1,050- to 1,400-word paper in APA format comparing ...

**history**

The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: > to achieve full employment without inflation; > to restore ...

**Vectors**

If vector a and b are unit vectors, and |a+b|= root3, determine (2a-5b) dot product(b+3a)

**Math**

an saw

**computers**

I have just started a basic class in programming and I am totally lost. Can someone help me out? I have to write pseudocodes and create flowchart and don't have a clue. I need help with the following: flowchart, pseudo-code, Input and Output variables, and also an Program ...

**Ap Chemistry**

What exactly is this question telling me to do? Write the balanced chemical equation for the dissociation of Cu(OH)2(s) in aqueous solution.

**Managerial Econ**

Chevrolet just announced a new incentive program that provides either $5,000 cash back or zero percent financing for up to seven years on Chevrolet Silverado pick-ups. How do you think the bottom line of Heartland Chevrolet in Liberty, MO will be impacted by this offer in the ...

**Manangerial Econ**

You manage a U.S. based company that makes #2 pencils that sell in a highly competitive market (your pencils are considered a standardized commodity by your customers). Your marketing data predicts that in the upcoming year overall industry production will fall by at least 5% ...

**Physics**

E2 (total) of rod (of length L = 9.15 mm) = 4.18 ×10^3 V/m. E1=1.76 x 10^3. E3=1.57 x 10^3. The rod consists of three sections of the same material but with different radii. The radius of section 3 is 2.27 mm. What is the radius of (a) section 1 and (b) section 2? If ...

**12th grade**

factor completely x^4-16=0

**algebra**

(2x^2-8x-42)/6x^2=(x^2-9)/x^2-3x How do you solve this problem? Please list the steps.. Thank You

**Chemistry**

Rank these acids from weakest to strongest: H2C2O4, HCO3-, H2PO4-, HCOOH.

**Physics**

The driver accelerates a 240.0 kg snowmobile, which results in a force being exerted that speeds up the snowmobile from 6.00 m/s to 28.0 m/s over a time interval of 60.0 s. b. What is the snowmobile's change in momentum? What is the impulse on the snowmobile? c. What is ...

**college**

closing inventory (under perpetual system): 125,000 x 30% = $37,500 (Income statement and bal sheet) Sales Revenue : $162,500 (Income Statement) Cost of goods sold (expense): 125,000 x 70% = $87,500 (Income Statement) Gross profit: 162,500 - 87,500= $75,000 (Income statement) ...

**Chemistry**

Suppose that 2.00 mol of HNO2 is dissolved in 1.00L of water at 25 degrees C. Because HNO2 is a weak acid, it is in equilibrium with the ions, H+ and NO2-. What are the concentrations of these ions at equilibrium?

**Chemistry**

A l.00L flask contains 4.40mol of HI at a certain temperature. The Keq at this temperature is 5.0 * 10^-4. What are the concentrations of H2 and I2 at equilibrium?