Saturday

April 19, 2014

April 19, 2014

Total # Posts: 427

**Chemistry**

What mass of octane must be burned in order to liberate 5410 kJ of heat?

**Math Help? Check my answers.**

1. A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)? 1/3 1/2 2/5 3/10** 2. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replac...

**Physics**

The figure(Figure 1) shows a solid metal sphere at the center of a hollow metal sphere. Assume that E=1.2×104N/C. What is the total charge on the exterior of the inner sphere?

**Physics**

An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the electric field...

**math**

A rectangular fish pond is 21ft(squared) in area. If the owner can surround the pond with a 20 foot fence, what are the dimensions of the pond?

**AP Chemistry**

A solution is made by mixing exactly 500 mL of 0.167 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentrations of H+, CH3COOH, CH3COO-, OH-, and Na+.

**physics**

a wooding block of mass 7.6kg rest on a rough horizontal surface if the surface is 8N calculate the coefficient of friction

**Chemistry**

What is the theoretical yield of ethyl chloride in the reaction of 19.2g g of ethylene with 48g g of hydrogen chloride?

**Water - Math Question**

aw, guys someone help me please??

**Water - Math Question**

This question is related to water footprint calculation. I have no idea how to go about this, if anyone could point me in the right direction, I'd be forever grateful! Background info: The water footprint of the resident of a Blue Sea riparian country (92 million residents...

**algebra 2**

Teaneck High had an enrollment of 11050 in 1990 and an enrollment of 13390 in year 1998. What is the predicted enrollment of Teaneck High in 2018 if we assume a linear model?

**math**

Biologists have noticed that the chirping of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 119 chirps per minute at 67 degrees Fahrenheit and 172 chirps per minute at 88 degrees Fahrenheit. Fi...

**U.S. Government**

How is the American Government Organized and their functions? - I have to write a 5 paragraph essay and I need help researching. - Do you know a website I can get information? P.S ; I do not have a book. I'm taking an online class and I have to start/finish it by tomorrow....

**Government**

i don't have a text to study. its an online class.

**Government**

1. The U.S. Constitution's Article I, Section 1 created the office for the U.S. president. A) True B) False 2. The term of office for a House member is two years. A) True B) False 3. Two requirements for members of the House are that they must be 25 years of age and a citi...

**statistics**

If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?

**Government (Check Answers)**

I need help with #7 ; #8 ; #9 .

**Government (Check Answers)**

Ms. Sue , will you check my answers? 11. B? 24. G ; F ; H ; A ; D ; E ; B ; C ?

**Government (Check Answers)**

1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the persons entitled to vote in...

**U.S. Government**

11. socialization 12. injunction & i question #8... because property owners doesn't fit in the blanks... Ms. Sue ; Could you help me with my Economics Questions? Please?

**U.S. Government**

1. Amendment -- gave all men the right to vote regardless of race. - 15? 2. People who believe voting is important have high political ----c-c-. - efficacy? 3. It is an essential part of democracy in action, for the people to ---e. - vote? 4. The age requirement to vote in the...

**Economics**

Because they dont do the work for you, they check to see if your answers are right. & tell you if they're not!

**government**

Will you tell me which 3? & Do you check Economics work too? I have posted stuff on here that I do need help on & I don't think nobody had checked it.

**government**

1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The purpose of the watchd...

**Economics**

The Law of Supply (movement along the curve due to the price effect) occurs because A) producers usually offer more for sale at lower prices than at higher prices. B) marginal production costs usually fall at higher rates of production. C) people can buy only so much of a prod...

**Government**

Would you mind to help me with my Economics homework?

**Government**

Thank you for the help. :)

**Government**

1. C 2. A 3. A 4. A 5. B 6. trade agreements 7. enumerated 8. ? 9. E 10. B 11. A 12. ? 13. A

**Government**

1. States must honor each other's laws and court decisions according to... (C) A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of domestic unrest....

**government**

Will you help me with my other post, I added the answers that i thought they were . They are in () or Under the question... Please?

**government**

Is it FALSE?

**government**

I don't have a book. I'm taking an online class. That's why I asked. I do research before i ask the question.

**government**

The National Government can form a new State out of an existing State without the permission of the existing state? True or False

**Government**

I re-posted the questions with answers. Will you check them?

**Government**

It's not a test...

**Government**

1. States must honor each other's laws and court decisions according to... A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of domestic unrest. A) ...

**Math**

If the manufacturer from the question above charges a 4½% late fee, how much would City Cellular owe if it did not pay the balance by the net date?

**Math**

City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May 20?

**Math**

Using your answer to the question above, what is the net dollar amount of that rose order?

**Math**

Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?

**physics **

A block with mass m=6.00kg slides down a surface inclined at 37° to the horizontal. The coefficient of kinetic friction is 0.20. A string attached to the block is wrapped around a flywheel on a fixed axis as seen in the figure. The flywheel has mass 25.0 kg and moment of i...

**Math**

Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.

**Calculus**

Find the dimension of a rectangle with perimeter 295 whose area is as large as possible

**Biology**

The term "worm" is a description of a body shape. A worm had a long, thin body. Aew all worms in the same phylum? How do you know?

**Math**

Find the area of the rectangular yard. A = length times width Then, divide the area by 600.

**7th grade math**

Three times larger assuming the cube is as tall as the pyramid.

**Math**

The other two angles would be acute angles.

**Math**

480 feet?

**science**

light trsavels at 3*10 m/s. an astrounaut shines a flash light in space. 4 hours later a martian sees a light from the astrounaut. how far away is mars from the astrounaut?

**Math**

Do you know how to remove parentheses?

**Math help Geometery**

I think rbowh left 360 degrees off the end of the sentence in the last comment.

**Alg 1**

8

**Chemistry**

What is the theoretical mass of the products in the double displacement reaction: CaCl2 (aq) + Na2CO3 (aq) → 2NaCl (aq) +CaCO3 (aq)

**math**

A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b.Find the length of the hypotenuse of the triangular lot. c. Find the sine, ...

**Chemistry Help!**

If 100 grams of KClO3 are heated to form KCl and O2 according to the equation KClO3 ¨ KCl + O2 (Hint: You need to balance the equation) a. How many moles of KClO3 reacted? b. How many moles of KCl are formed? c. How many grams of KCl are formed? d. how many moles of ...

**Physics**

What is the magnitude of the force a +29 charge exerts on a +3.3 charge 48 away?

**Statistics **

The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a standard deviation of 0.12 ounces. Every can that has more than 12.30 ounces of soda poured into it causes a spill and the can needs to go through a special cleaning ...

**Math**

5/6 is the greatest i helped you please help me

**math**

If franco is ordering lunch with a drink,sandwich,and a salad.He has the choice of 3 drinks,2 sandwichs,4 salads how many possible lunches are there? Tamara has 4 times as many pages to read for her book report as maria.Tamara has 20 pages left to read.How many pages does mari...

**math 3rd grade**

Well see 4x7 doubled is well 28+28=56 so 4x7 doubled is equal to 8x7 hope this helps

**Math**

Well the florida one is b

**ENGLISH **

Identify the regular or irregular verb:John has become or has became a rather good actor. I choose ( has become)

**Math**

Sandy works at a clothing store. She makes $9 per hour plus earns 10% commission on her sales. She worked 78 hours over the last two weeks and had a total of $2,340 in sales before taxes. Which of the following is closest to how much she will earn in hourly wages and commissio...

**Physical Science**

Compute the wavelength in air of ultrasound with a frequency of 50 kHz if the speed of sound is 344 m/s.

**Calculus**

Squares with sides of length x are cut out of each corner of a rectangular piece of cardboard measuring 3 ft by 4 ft. The resulting piece of cardboard is then folded into a box without a lid. Find the volume of the largest box that can be formed in this way.

**Physics**

A boy wishes to throw a rock into the river below the cliff where he is standing. The cliff is 50 M high and he can throw with a horizontal velocity of 30 m/s. how long does it take for the rock to reach the water? How far, in the horizontal direction, does the rock land?

**Trigonometry**

If the shadow of a building increases by 10 meters when the angle of elevation of the sun rays decreases from 70o to 60o, what is the height of the building?

**Trigonometry**

Karla is riding vertically in a hot air balloon, directly over a point P on the ground. Karla spots a parked car on the ground at an angle of depression of 30o. The balloon rises 50 meters. Now the angle of depression to the car is 35°. How far is the car from point P?

**Science**

According to what I know, m/s is the unit for linear speed or the velocity.

**calculus**

Two cars start from the same point at the same time. One travels north at 25 mph, and the other travels east at 60 mph. How fast is the distance between them increasing at the end of 1 hr? Find D after 1 Hr, solve D^2=25^2+ 60^2

**chemistry**

if 16.o ml HCL is needed to neutralize from a 2.25g sample of organic material, calculate the mass percentage of N in the sample

**science**

what is the control in the following experiment - which brand of popcorn has the least amount of un-popped kernels after 3 minutes?

**Math**

you take the principal multiplied by the rate by the time. That equals the interest and then you add it to the principal that is the future total

**math**

I agree and I only agree because all of you agree

**Math**

The perimeter of a rectangular deck is 175 feet. The length of the deck, L, is 6 feet longer than 2 times the width, W. Which system of equations can be solved to determine the length and width, in feet, of the deck? What is the correct formula and why? a) 2L+2W=175 L=2-6W b) ...

**6th grade science**

Thanks!

**6th grade science**

Is latitude the up and down lines on a map?Or the side to side lines? Thanks

**6th grade science**

thanks

**6th grade science**

What is porosity and permeability? Thanks

**6th grade science**

thanks

**6th grade science **

What is a A topographic map used for? thanks

**6th grade science**

never mind my big brother helped me but thanks anyway

**6th grade math**

THANKS!

**6th grade math**

f + (–15) = –32

**math**

thanks

**math**

Subtract. –84 – 55 the answer is -29 right?

**history**

Who was the Danish immigrant who photographed immigrant life to make people aware of the problems immigrants faced in the United States?

**HISTORY **

Which series of events is in the correct chronological order? Plessy v. Ferguson, ratification of the 14th Amendment, end of Reconstruction ratification of the 14th Amendment, end of Reconstruction, Plessy v. Ferguson ratification of the 14th Amendment, Plessy v. Ferguson, end...

**Science**

weather . com it's like this because you can't post internet addresses without a url

**history**

Lee Yick took his case to the Supreme Court and lost because, under the 14th Amendment, only U.S. citizens had the rights of due process and equal protection of the laws true or false

**History Christopher Columbus**

Well every body thinks it was Christopher Columbus,but actually it was people who walked over a huge land bridge during the ice age.Some people also think that they canoed over to America.

**math**

thanks

**math**

I'm in sixth grade What is the value of |–46| ?

**math**

What value of f makes the equation true? f – 18.4 = 11.8

**math**

Which equation could be used to find the perimeter of an isosceles triangle, with two sides 13 cm long, a base 10 cm long and a height of 12 cm? A. P = (10 × 12) ÷ 2 B. P = 2 × 13 + 10 C. P = 13 + 10 + 12 D. P = 2 × 10 + 13

**algebra**

How do you Simplify

**3rd math**

okay Math genius! Help me out here. I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is 1 more than my hundreds digit. What number am I?

**math**

the distance between new york city and boston is 189.9 miles as the bird flies.how far is it in kilometers?

**math**

joe drank 4 liters of water on monday and 4 deciliters of water on tuesday.how much more water did he drank on monday than on tuesday

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