Monday

January 26, 2015

January 26, 2015

Total # Posts: 76,672

**physics**

The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-4.25 107) t 2 + (3.45 105) t, where v is in meters per second and t is in seconds. The acceleration of the bullet just as it leaves the barrel is zero. (a) Determine the ...
*January 22, 2015*

**science**

a satellites original velocity is 10,000 m/s. after 60 seconds, it is 5,000 m/s. what is the satellites acceleration
*January 22, 2015*

**science**

a cars velocity changes from 0 m/s to 30 m/s in 10 sec. what is the cars average acceleration
*January 22, 2015*

**Math**

a = [450km/hr - 900 km/hr]/2.5 minutes a = [-450km/hr]/2.5 minutes a= [-450km/hr]/0.416 hrs a = -10817.31km/hr2 is that correct?
*January 22, 2015*

**Math**

If an airplane is traveling at 900 km/hr and slows to 450km/hr in 2.5 minutes. What is the plane's acceleration?
*January 22, 2015*

**science**

Which place is most likely to have cold weather and a cold climate year-round
*January 22, 2015*

**physics**

A projectile of mass 0.528 kg is shot from a cannon, at height 6.7 m, as shown in the figure, with an initial velocity vi having a horizontal component of 7 m/s. The projectile rises to a maximum height of 3.8 m above the end of the cannon’s barrel and strikes the ground ...
*January 22, 2015*

**math**

If 26 Blims weigh as much as 4 Blams and 2 Blums while 8 Blims and 2 Blams have the same weight as 2 Blums, how many Blims have the same weight as 3 Blums?
*January 22, 2015*

**English Check please**

1. C 2. D Online school
*January 22, 2015*

**Math**

At the scrabble tourtament 2 different games went on for a total of 93 mins. How long did it take yo complete each game
*January 22, 2015*

**Language**

B and D both make me calm, but D also sounds the same as B.
*January 22, 2015*

**Help help help help help!!!**

Help please!
*January 22, 2015*

**Language**

Which lines from "The Fairies' Lullaby" best help the reader understand the author's calm tone? A. you spotted snakes with double tongue, / Thorny hedgehogs, be not seen. B. Philomel(Nightingale) with melody / Sing in our sweet lullaby; C. Hence, you long-...
*January 22, 2015*

**Math**

Is log(2)4^(3x+4) equal to 6x + 8?
*January 22, 2015*

**Math**

For log(5)x^8 = 16, are both 25 and -25 solutions?
*January 22, 2015*

**HELP!**

correct! it could be B eats D too, but I think that I got that one wrong
*January 22, 2015*

**HELP!**

connexus test i recognize what do you think? you did not post the whole question by the way
*January 22, 2015*

**Science Ecosystem Exam**

cheating is not allowed though
*January 22, 2015*

**Science Ecosystem Exam**

you are in connexus science 6A it is D
*January 22, 2015*

**Language**

I need help!!
*January 22, 2015*

**Language**

Which lines from "The Fairies' Lullaby" best help the reader understand the author's calm tone? A. you spotted snakes with double tongue, / Thorny hedgehogs, be not seen. B. Philomel(Nightingale) with melody / Sing in our sweet lullaby; C. Hence, you long-...
*January 22, 2015*

**math**

Marilyn wants to install carpet in her living room that measures ft by 16 ft. What is the area of the living room?
*January 22, 2015*

**Math**

Actually, the assignment says the graphs opens downward and asks me to put in in the equation. So then this looks fine, right?
*January 22, 2015*

**Math**

For a quadratic with a vertex of (4, 1) with the graph opening downward, is this the right construction in vertex form? -a(x - 4) + 1
*January 22, 2015*

**Science**

The answer is C
*January 22, 2015*

**Science**

Which foods are lipids found in, and what is their function in the body? A: lipids are found in sugars and starches and are the main source of energy for the body B: lipids are found in fats and oils and are an essential component of cell membranes C: lipids are found and fats...
*January 22, 2015*

**English **

"that the Armatix smart gun would not trigger the law" Is that a device? Maybe personification?
*January 22, 2015*

**algebra**

4000.00 bond with a yearly interest rate of 4% the total interest was $800.00 what was the length of the investment
*January 22, 2015*

**math**

Find the total number of possible squares on the chessboard
*January 22, 2015*

**physics**

A canoe has a velocity of 0.31m/s southeast relative to the earth. The canoe is on a river that is flowing
*January 22, 2015*

**Science**

Would it be D then? @lucina
*January 21, 2015*

**Science**

The cell theory was A: developed by Robert Hooke B: developed before microscopes were invented C: developed only after electron microscopes became widely used D: developed by many scientists over many years Is the answer A?
*January 21, 2015*

**physical science**

if you drop an object from a height of 0.8m, it will hit the ground in 0.40s. if you throw a baseball horizontally with an initial speed of 29m/s from the same height, how long will it take the ball to hit the ground
*January 21, 2015*

**Science **

Most bacteria are A: unicellular eukaryotes B: unicellular prokaryotes C: multicellular eukaryotes D: multicellular prokaryotes Is the answer B?
*January 21, 2015*

**Chem**

A scientist finds that one volume of an unknown gas X combines with 2 volumes of another gas Y to form 2 volumes of a new gas with a formula XY2. What is the balanced equation?
*January 21, 2015*

**Science**

Is the answer d?
*January 21, 2015*

**Science **

Which foods are lipids found in, and what is their function in the body? A: lipids are found in sugars and starches and are the main source of energy for the body B: lipids are found in fats and oils and are an essential component of cell membranes C: lipids are found and fats...
*January 21, 2015*

**Math**

If -f(x), or reflection across the x-axis, is done on .7x - 4, then is the new equation -.7x + 4?
*January 21, 2015*

**chemistry**

Calculate the number of grams of sulfuric acid in 1 gallon of battery acid if the solution has a density of 1.25g/mL and is 38.3{\rm \\%} sulfuric acid by mass.
*January 21, 2015*

**Science**

Oxygen moving from the bloodstream into a cell down a concentration gradient is a form of A: osmosis B: endocytosis C: Active transport D: passive transport Is the answer D?
*January 21, 2015*

**Social Studies**

Do you know the answer!?
*January 21, 2015*

**Social Studies**

I marked this at social studies I meant science
*January 21, 2015*

**Social Studies**

Which foods are lipids found in, and what is their function in the body? A: lipids are found in sugars and starches and are the main source of energy for the body B: lipids are found in fats and oils and are an essential component of cell membranes C: lipids are found and fats...
*January 21, 2015*

**chemistry**

A mixture of N2(g) and H2(g) has mole fractions of .40 and .60, respectively. What is the density of the mixture at 1 bar and 0 degrees celsius?
*January 21, 2015*

**Social Studies**

Ok thanks so much! Number 2 was B. And I got 100%
*January 21, 2015*

**Social Studies**

1: The government must provide some goods and services because A: they are too expensive for entrepreneurs to provide. B: demand for them is greater than supply. C: private producers have no incentive to do so. D: not many people are interested in buying them. Is the Answer C...
*January 21, 2015*

**Social Studies.**

What is one problem with putting off the cost of policies in public services? A: The national debt will continue to grow. B: Voters will not enjoy the benefits of the programs. C: politicians will refuse to vote for laws that do this. D: The federal budget will remain balanced...
*January 21, 2015*

**Arts**

What does it mean by Foundation High School Program, Foundation High School Program Plus one Endorsement, and Distinguished Level of Achievement HS program
*January 21, 2015*

**Arts**

Does that go with Speech also
*January 21, 2015*

**Arts**

Just a regular High School.
*January 21, 2015*

**Arts**

Do you need Fine Arts Credits in high School?
*January 21, 2015*

**math**

what is the temperature of the week the ,if the temperature of monday is 33 tuesday is 32 wednesday is 32 thursday is 34 friday is 31 saturday is 30 sunday is 31 , what is the temperature of a week
*January 21, 2015*

**Math**

If I have 87% in a course. What's my mark after my exam worth 15% in which I got 85%?
*January 21, 2015*

**English**

What is the warrant in this article? BOULDER, Colo. — JUST after Christmas, Veronica Rutledge of Blackfoot, Idaho, took her 2-year-old son to a Walmart store to spend holiday gift cards. As they strolled by the electronics section, according to news reports, the toddler ...
*January 21, 2015*

**math**

Solve: Check your solution. 3y - 7 = -3y + - 19
*January 21, 2015*

**Math**

If -f(x), or reflection across the x-axis, is done on .7x - 4, then is the new equation -.7x + 4?
*January 21, 2015*

**Math **

The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same volume. He needs one ...
*January 21, 2015*

**Math**

Yes, but you can reduce that to 5/6
*January 21, 2015*

**English**

Thank you! I'm also having trouble finding the warrant. I know that a warrant links the grounds to the claim.
*January 21, 2015*

**English**

Would the claim be ".... Buy smart guns, creating a market and proving they work"
*January 21, 2015*

**English **

What is the claim, warrant, and grounds in this article? Smart Guns Save Lives. So Where Are They? BOULDER, Colo. — JUST after Christmas, Veronica Rutledge of Blackfoot, Idaho, took her 2-year-old son to a Walmart store to spend holiday gift cards. As they strolled by the...
*January 21, 2015*

**Math**

I am asked to graph f(x) = (x+3)^2 + 7 and then f(x) + 2. Is this the same as graphing f(x) = (x+3)^2 + 7 and f(x) = (x+3)^2 + 9?
*January 21, 2015*

**science**

how many milliliters of .2 M sodium hydroxide are needed to completely neutralize 25.0g of sulfuric acid
*January 21, 2015*

**government**

why?
*January 21, 2015*

**government**

Do you think the civil right acts are still necessary today
*January 21, 2015*

**math**

Thank you
*January 21, 2015*

**math**

Is the answer to the problem 294 hours?
*January 21, 2015*

**math**

Lisa works 7 hours a day, 7 days a week. How many hours does Lisa work in 6 weeks?
*January 21, 2015*

**physicss**

A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.80 10-9 N in magnitude. The two masses have a combined value of 5.65 kg. Determine the value of each individual mass.
*January 21, 2015*

**Math**

When I write the inverse function for y = 3x - 7, can I change y to f^-1(x)?
*January 21, 2015*

**Spanish--2 questions**

24. What can scientists learn from studying the forest around the crater in the Poás volcano? 25. Why do you suppose that no camping is allowed within the Poás Volcano National Park?
*January 21, 2015*

**math**

(1 pt) At the surface of the ocean, the water pressure is the same as the air pressure above the water, about 15lb/in2, Below the surface the water pressure increases by about 4.24lb/in2 for every 10 ft of descent. Write a function f(x) which expresses the water pressure in ...
*January 21, 2015*

**Math**

Thanks to both!
*January 21, 2015*

**Math**

So I have to simplify and then get the exponential?
*January 21, 2015*

**Math**

How to find the inverse of y = log(4)x^2
*January 21, 2015*

**chemistry**

A 0.8743 g sample of KHP was titrated 42.45-mL of NaOH solution until the phenolphthalein endpoint. What is the molarity of the NaOH solution?
*January 21, 2015*

**destop pubblishing**

in order for text wrap words around picture, you need to do what?
*January 21, 2015*

**Health**

can you give me an insite of the WHO Framework Convention on Tobacco Control ??
*January 21, 2015*

**physics **

5. An object is dropped. If one could neglect air resistance a. what would its velocity (magnitude and direction) be after 1 s? b. what would its displacement (magnitude and direction) be after 1 s?
*January 21, 2015*

**physic**

4. A car accelerates at 0.5 m/s2 starting from rest. a. After 4 s what is its velocity? b. After 4 s, how far has it traveled from its starting position?
*January 21, 2015*

**Pychology**

Much research is being conducted on repairing faulty sensory organs through devices such as personal guidance systems and eyeglasses, among others. Do you think that researchers should attempt to improve normal sensory capabilities beyond their “natural” range (for ...
*January 21, 2015*

**Math**

Jim bought 3 1/2 pounds of apples, 2 3/4 pounds of oranges, 1 1/4 pounds of grapes, and 2 5/8 pounds of bananas. If Jim gives Bill 1/5 of the fruit, how many pounds of fruit will Bill receive? This is a word problem for multiplication of fractions, and I don't even know ...
*January 20, 2015*

**Calculus: Intergration**

Need help intergrating 1dx/[(4x − x^2)^3/2] and 1dx/[x^2√(x^2-9)] Thanks
*January 20, 2015*

**Chemistry**

How many grams of CaCl2 * 6H2O are required to make 500 milliliters of a solution having the same concentration of Cl- as one that was prepared by dissolving 75.6 grams of NaCl in enough water to make exactly 1 liter of solution?
*January 20, 2015*

**math homework please help**

simplify cubed root of 432 write 10^5sqrt15 as an entire radical
*January 20, 2015*

**Math**

when the square root of 450 is simplified, the coefficient of the mixed radical is?
*January 20, 2015*

**Math**

fill in the missing number originally: ? new price: $3.80 15% decrease how do you find the original price? help!
*January 20, 2015*

**chemistry**

A 12.42 gram sample of a mixture of NaCl and CaCl2 is dissolved in water and all the chloride is precipitated as AgCl. If the AgCl precipitate has a mass of 31.70 grams. How do I find the mass percentage of each component in the original mixture?
*January 20, 2015*

**Trig/Precalc**

Okay, thanks so much for your hints on the first one! I got it using a combination of point-slope form and arc tangents. I'll wait to hear more on #2 if you have the time :)
*January 20, 2015*

**Chemistry**

if you start with 20.0g of phosphorus 30.0g of oxygen gas, and 15.0g water, what is the maximum mass of phosphoric acid that can be formed?
*January 20, 2015*

**Pre-Calc **

A page that is x inches wide and y inches high contains 30 square inches of print. The margins at the top and bottom are 2 inches and the margins on the side are 2 inch wide. A. show that the total area A on the page is A=2x(2x+7)/(x-4) B. determine the domain of the function ...
*January 20, 2015*

**English**

Endurance to keep doing something for a long period of time like sports
*January 20, 2015*

**English**

Is endurance a physical challenge
*January 20, 2015*

**physics**

In a physics lab, students are asked to predict how the acceleration of the block sliding up a ramp compares to the acceleration down the ramp compares to the acceleration down the ramp. The block slides up a somewhat rough surface inclined at an angle of theta above the ...
*January 20, 2015*

**ascience**

what is the velocity vector of a sailboat traveling east at 20 mph with a wind of 10. mph to the north
*January 20, 2015*

**English**

Is drawing considered a physical challenge
*January 20, 2015*

**Math**

how many times heavier is a 16 1/2 pound rock than a 10 1/2 pound rock?
*January 20, 2015*

**Chemistry**

Our blood works mostly as a carbonic acid buffer which has an optimal buffering pH of about 6.4, the pH of blood is around 7.4. What is the advantage for the body of having the buffer at the non-optimal pH??
*January 20, 2015*

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