Sunday

April 20, 2014

April 20, 2014

Total # Posts: 305

**English II**

That day I was so worried that I

**chemistry**

If we have a concentration of H+ at 5 x 10-2 mol/L, what is the pH value? A. -1.30 B. 0 C. 1.3 D. 2.6

**Math**

How would you solve 4[7^(x-2)] = 8

**Chemistry**

118.2

**English**

Help please!!!

**English**

What does this quote mean? “Stars got tangled in her hair whenever she played in the sky.”

**Physics**

two hundred fifty grams of iron is heated from 27 degree Celsius to 300 degree Celsius . how much ice can be melted and raised to a temperature of 27 degree Celsius by hot iron?

**Physics**

An electric heater warms a large 0 degree Celsius block of ice at the rate of 200J/s . calculate the mass of the ice that melts in 10 minutes

**algebra**

A car travels down the highway at speeds between 50 miles per hour and 65 miles per hour. If the car travels for 4 hours, write an expression that represents the distance, d, the car has travelled.

**Chemistry**

Oh, thank you!

**Chemistry**

What is the electro-negativity of NO ? (Nitric oxide)

**Geometry**

Use the Pythagorean Theorem to find the height / bases in each triangle. Then apply formula for area - b(h)/2

**Pre-Calculus**

C(x) = 14 ( 150) + 6 (230-150) + 3x

**Math**

A spherical balloon is being inflated. Estimate the rate at which its surface area is changing with respect to the radius when the radius measures 20 cm.

**Math**

How do you factor 2a^2 - 1 ?

**Math**

APPLE + ORANGE

**Math**

Find a polynomial whose zeroes are double the zeroes of P(x)=x^3-7x^2-5x+2.

**Financial Mgmt.**

Nachman Industries just paid a dividend of D0 = $1.75. Analysts expect the company's dividend to grow by 30% this year, by 10% in Year 2, and at a constant rate of 5% in Year 3 and thereafter. The required return on this low-risk stock is 9.00%. What is the best estimate o...

**chemistry**

how to prepare and calculate 10%,20% and 30% of phosphoric acid from the concentrated? Meaning that if 10% = 10%phosporic acid+90% of water. let say i want to prepare in 250ml volume.

**chem**

When saccharin is added to pure water, the freezing point of the resulting solution drops to -5.0C, Calculate the freezing point depression of the aqueous saccharin solution. Note: freezing point of pure water is O.0C... Stuck thanks so much!

**Economics**

how did the wizard of oz(the movie) relate to the social and economic texture of america?

**Science Help**

It is a mini one, like a toy car.

**Science Help**

Please help , I need to make a solar powered car. Where would I be able to get 3v motors ?

**Physics**

A mountaineer

**statistics**

test the claim that less than 30% of the students in class own a car at the 0.10 significance level.

**Chem**

a 4.369g sample of metal is placed in a flask. water is added to the flask and the total volume in the flask is read to be 126.4ml. the mass of the water, flask, and metal is 268.5g. if the mass of the flask is 139.3g and the density of water is 1.000g/ml, the density of the s...

**math**

500

**English**

Cradle!

**AP Physics B**

Use the equation m1u1 + m2u2 = m1v1 + m2v2 (mass 1 x its initial velocity + mass 2 x its initial velocity = mass 1 x its final velocity + mass 2 x its final velocity)

**5th grade math**

1. Find the area 2. Divide it by 4 3. Thats how many tulips!

**English**

Yes, B.

**math**

1.802752386 x 10 ^11

**math**

1 pack = 5 doughnuts ? pack = 2587 2587/5 = 517.4 Round it... 518 packs Hope this helped!

**Physics**

b. First law of motion - All material objects will remain in rest or motion in a straight line unless compelled by an unbalanced force. Its direction is changing = new force.

**Steve 3 more questions.**

8, 2 0, 4 -1, -2 5, -5 ..Please recheck these

**Steve 3 more questions.**

18 a Cinema A - 66/12 = 5.5 Cinema B - 28/5 = 5.6 Cinema A is cheaper. b) you save 10 cents! ( 5.6-5.5)

**Math**

5/13

**elementary**

Is that really me? I hope you liked the gift from me.

**Physics**

You are looking for range. Range = Vh x t Vh = 30 m/s t= ? We know d= 50 m, viv = 0 m/s a=9.8 d=vit + 1/2 at ^2 50=0 + 1/2 9.8 t ^2 50 = 4.9 t^2 t = 3.1 s Range = (30) (3.1) = 95.8 m Hope this helped !

**Physics**

An electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350N and the box accelerates at 1.2m/s^2[forward] for 5.0s. The cable breaks and the box slows down and stops. How far does the box travel from the moment the cable br...

**Physics**

An electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350N and the box accelerates at 1.2m/s^2[forward] for 5.0s. The cable breaks and the box slows down and stops. How far does the box travel from the moment the cable br...

**English 9**

easy going - feather ?

**science**

a piece of metal weighs

**math**

Point A(8, –10) is reflected over the y-axis. Write the coordinates of A'.

**Economics**

Use supply and demand economic theory and diagram to explain why the prices of houses has changed so much over the last 3 years. I just need topics to use to write about

**Economics**

Use supply and demand economic theory and diagram to explain why the prices of houses has changed so much over the last 3 years. I just need topics to use to write about

**Physics**

The fastest sustained runner is the pronghorn antelope, capable of running at 55 min/h for 1/2 mile. How long does it take this antelope to run the. 1/2 mile?

**Physics**

when driving at night at a speed of 80 km/hr, a deer suddenly appeared and frozen in your head light. The distance between your car and the deer was 45 meters at the moment you start to break your car as hard as possible in order to avoid the accident Assume that you could onl...

**algebra**

put 1/3 4/6 1/2 5/6 1/6 in order

**management**

the american federation of labor was formed under the leadership of who?

**management**

according to -theory, employees compare the inputs and outputs of other employees doing similar jobs. unfavorable comparisons may lead to slacking off on their work or asking a supervisor for either an explanation or a raise.

**management**

regarding management and leadership, which statement is most accurate?

**Chemistry**

suppose you wanted to heat a mug of water 250 ml for room temperature 25c to 100c to make a cup of tea. how much energy (in units of calories and joules) would you need form the microwave?

**books**

thank you! i dont know how to start it. like the first sentence. do i just dive right in or start with something else?

**books**

In the romantic tragedy, William Shakespeare tells the audience, through the two young lovers, Romeo and Juliet, that love can make you do crazy things that you wouldn’t otherwise do.

**books**

Romeo and juliet i need a conclusion for my essay the theme is how love can make you do crazy things. so far my 3 paragraphs conclude of 1 romeo climbing to juliets balcony 2 they get marrried 3 they kill themselves now i just need a conclusion

**United States History**

the least controversial actions of president bush regarding? a. war in iraq b. hurricane katrina c. immigration reform d. economic crisis of 2007-2009 e. "no child left behind" educational program I think the answer is E?

**Chemistry**

1 mol=molar mass in grams 6.022*10^23=1 mol all should cancel out whats left is answer

**History**

How were the issues of the civil war similar to those of the american revolution.

**History**

Was the republican party consistent in its policies from the 1850s-1877?

**History**

civil war ---> triumph of american democracy over european aristocracy. I'm supposed to write a paragraph about this, but I don't understand it.

**History**

What struggle was there between the president and Congress for dominant political power within the federal government from 1850-1868? I know there was the reconstruction problem and how congress basically took over. What else?

**Pre-Cal**

I'm trying to put this parabola in standard form which is: (y-k)^2=4p(x-h) The equation is x=(1/12)(y-2)^2 +6 Here is what i have so far: x=(1/12)(y-2)^2 +6 -6 -6 x-6=(1/12)(y-2)^2 *12 *12 Would it be 12x-6 OR 12x-72? thanks

**Hi**

The interests of the West were satisfied by neither the Jeffersonians nor the Federalists between 1789 and 1815. I'm supposed to write a paragraph about it, but I don't understand what it is asking...

**History**

Why is the War of 1812 called the second war of independence? I have b/c it was fought against the same country and it made the U.S independent and more respected. I need more, help please!

**history**

What caused Jeffersonian Democracy to develop?

**biology**

thanks

**biology**

what is the different between diet and health.

**abstract algebra**

Suppose K = {{2,3,4,5,6,7},{2,5,7,8,12},{1,2,3,5,7,9,13,20}}. Find three upper bounds for K in P(N) and three lower bounds. Does K have a least upper bound? Does K has a greatest lower bound?

**abstract algebra**

Suppose K = {{2,3,4,5,6,7},{2,5,7,8,12},{1,2,3,5,7,9,13,20}}. Find three upper bounds for K in P(N) and three lower bounds. Does K have a least upper bound? Does K has a greatest lower bound?

**Chemistry Help Please :)**

thanks

**Chemistry Help Please :)**

thanks

**physics**

A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits another kid 2.1 away square in the back, at a point 0.91 above the ground.

**physics**

a large chunk of ice with mass 15 kg falls from a roof 8 m above the ground . find the kinetic energy of the ice when it reaches the ground

**Physics**

What happens to the internal energy of an ideal gas when it is heated from 0C to 4C? a. increases b. decreases c. change in number of atoms d. increase in volume of substance

**physics**

a. increases b. decreases c. change in number of atoms d. increase in volume of substance

**physics**

What happens to the internal energy of an ideal gas when it is heated from 0C to 4C?

**Physics**

What happens to the internal energy of an ideal gas when it is heated from 0C to 4C?

**Literacy**

17. Scholarly journal articles are written: A. For a general audience B. By lower division college students C. By reporters D. By experts in a subject field

**Physics**

a = F/m = 15N/45kg = 0.33 m/s^2 , vf^2 = vi^2 + 2ad vf^2 = 3^2 + 2(0.33)(11) vf^2 = 16.3 vf = 4m/s is that correct?

**Physics**

A 45kg sled is coasting with constant velocity at 3.0m/s over a patch of smooth and level ice. It enters a very rough section of ice that is 11m long in which the force of friction is 15N. With what speed will the sled emerge from the rough ice?

**World**

Will the world end on december 2012? I dont think it will

**calculus**

what is the domain of f if f(x)=2cos(4x+pie)-1

**algebra**

maybe t divided by 30 and 30 times t...?

**algebra**

maybe t divided by 30 and 30 times t

**math**

20. A scale drawing of a town park has a scale of 5 in : 100 ft. What is the actual length of each foot in the drawing? (1 point)

**calculus**

a boat leaves a dock at 2:00 pm and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 3:00 pm. at what time were the two boats closest together

**English - Drawing conclusions**

jon is tony cousin. Tony is hanks newphew. How are hank and jon related?

**science**

Im 13 in the 8th grade and i need help on figurinmg out simularites between mitosis and meosis please help thanks :]

**Physics**

An astronaut in outer space pushes himself away from his spaceship. About how far does the astronaut go before stopping? What does the astronaut have to do to stop himself?

**Physics**

The coefficient of static friction between the m = 2.95-kg crate and the 35.0° incline is 0.345. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

**physics**

1 A block of mass mb sits atop a at wooden plank of mass mp on a plane inclined an angle theta with respect to thehorizontal. The two are supported near the bottom of the plane by a spring of spring constant k that is in contactwith the plank but not the block. If the coecient...

**English- The scarlet Letter**

what rhetorical device does hawthrone use to reveal hester prynne's past? What do we learn about her?

**Physics**

A shell of a gun has a initial speed of 1700 m/s at initial inclination of 55◦ above the horiztontal. Ignore air resistance and other effects. a) what is the maximum height? B) what is the total time of the shell's flight? c) how far away did the shell hit?

**pre-algebra**

When a baseball is hit it comes in contact with the bat for 0.001 seconds.Write that as a negative exponet?

**penn foster world history**

can somebody plz help me with penn foster exams 007679rr,007680rr,007681rr and 007682rr plz help me.....

**United States History**

Okay, that is your view. but what was jeffersions and why?

**United States History**

What is Jeffersinans position on funding debts, and justification? His position is that each state should be responsible for its own debt. But I don't know why, or if that is right.

**Physics**

how can the equilibrant of two or more concurrent forces be found

**Physics**

How does the resultant of two vectors change as the angle between the two vectors increase?