# Posts by Sammie

Total # Posts: 99

**physics**

An automobile that has a mass of 1.3 x 103 Kg, has 3.9 x 105 J of kinetic energy when it has speed of 24.6 m s-1 (88.6 km h-1). What height should you lift the car to have this energy?

**Science**

Is it 1 and 4?

**Science**

Ms. Sue 1)T 2)F 3)F 4)T 5)T

**Science**

True or False 1) All living things must eat other living things for food. 2) Plants can make their own food. 3) Plants don't need oxygen, only carbon dioxide. 4) Animals eat plants or other animals that eat plants. 5) Many living things need oxygen to release energy from ...

**algebra**

how do i find the possible range of this measurement - 25 ft +(the plus sign is underlined) 1%

**Math**

How do I write the equation?

**Math**

Help please, one third of negative 18

**Math**

I need a little help please. 7/12 ____ = 1/3 The answer I came to is 1 3/4 is this correct?

**Starcatcher**

I belive Your correct

**science**

Your answer is????

**math**

No solution. Duh

**Science**

I think your right

**Algebra**

The answer is no soultion

**Social science**

is it individual and group freedom?

**political science**

Is it Women making between 78% and 84% of what men make in their jobs?

**political science**

so basically women making less than men?

**political science**

The Lilly Ledbetter Fair Pay Act was passed by President Obama in 2007 in order to address what issue?

**Physics**

There are 2 point charges. Q1 is 4nC and is at (-2,0). Q2 is -2nC and is at (0,3). How much work does the electric field do when a third point charge of +3.00 nC is moved from infinitely far away and placed at the origin? I know infinitely far means Va will be 0. However ...

**Curriculum Areas**

Come on. We won't do it for you it's easy

**PHYsics URGENT**

a 7.0 kg object weighs 55 N when submerged and weighed in water. A) what is the value of the buoyant force of the water on the object b) what weight of water is displaced by this object? c) water weighs 0.0098 N per cubic centimeter. What volume of water (in cubic centimeters...

**PHYsics 101**

How much heat must be added to 4.00 kg of aluminum to cause its temperature to rise from 22°C to 252°C unit of answer must be Joule

**Physics please help me (:**

Calculate the change in internal energy of a system if 25000 J of heat is added to the system while the system does 40000 J of work on its surroundings. Does this represent an increase or decrease of internal energy?

**Physics**

400 grams of a metal at 300 C is added to 100 grams of of water at 20 C. Assuming all the heat lost by the metal is gained by the water and that the final temperature or water and metal is 95 C, calculate the specific heat of the metal. Using grams and degrees C, the specific ...

**PHYsics URGENT**

the deepest part of the ocean is 10,900 meters deep. a) calculate the absolute pressure at that depth in units N/m^2. Use the mass density of sea water, 1030 kg/m^3. see part b for more info b) one atmosphere of pressure is about 1.013 X 10^5 N.m^2. How many atmospheres is the...

**physics**

how much heat must be added to 4.00 kg of aluminum to cause its temperature to rise from 22 degrees C? unit of answer must be joule

**Chemistry**

cube of aluminum that measures 5 cm on each side is added to a 500 ml- graduated cylinder containing 200 ml of water. What is the new level of the water in the graduated cylinder after the cube of aluminum is added?

**life orientation**

Examine how each of the following are responsible for road accidents and propose practical solutions by the community to the competence of the drivers,substance abuse,pedestrians,cyclists and livestock

**life orientation**

Evaluate the effectiveness and ineffectiveness of the following government's initiatives to reduce road accidents in the country

**Social Studies**

Okay Thankyou!

**Social Studies**

I don't know. All it gives me is the key terms: Eli Whitney, Westward Expansion or Louisiana Territory

**Social Studies**

How did the development of the industry impact the expansion of the United States? Please help me I don't understand

**Physics**

Can someone please help me solve this question please: In the following position as a function of time equation, find the units of the constants A, B, and C. Where x is the position and has units of L, and v is velocity, and t is time. x = Av + Bt^2 + C Thank you.

**Math**

Okay, Thank You.

**Math**

If I spoke to someone for 60 minutes and then spoke to them again for 41 minutes, would that mean I spoke to them for 1 hour 41 minutes? 60+41=101 minutes?

**consumer math**

You (or your parents) purchase a used car for $15,876.00 plus 5.25% sales tax. The down payment is 10% of the total cost and you ( or your parents ) have an excellent credit rating. What is your principal balance at the start of the loan?

**Statistics**

Foofy says a deviation of +5 is always better than a deviation of -5. Why is she correct or incorrect?

**Statistics**

As part of studying the relationship between mental and physical health, you obtain the following heart rates: 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78

**Statistics**

Assume that the data in question 25 reflect a highly skewed interval variable. (a) What statistics would you compute to summarize these conditions? (b) We compute them to be 14, 12, and 8.5, respectively. What conclusion about the study should you draw?(c) What conclusion ...

**Statistics**

In a normal distribution of scores, four participants obtained the following deviation scores: +1, -2, +5, and -10. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rank-order the deviation scores in terms of their frequency, ...

**Physics urgent pls!**

A ball is tossed from an upper-storey window of a building.The ball is given an initial velocity of 8 m/s at an angle of 20 degrees below the horizontal.it strikes the ground 3s later .(a) How far horizontally from the base of the building does the ball strike the ground? (b)...

**Physics urgent**

An archer shoots an arrow with a velocity of 45.0m/s at an angle of 50.0degrees with the horizontal.An assistant standing on the level ground 150m downrange from the launch point throws an apple straight up with the minimum intial speed necessary to meet the path of the arrow...

**Physics help!!**

An archer shoots an arrow with a velocity of 45 m/s at an angle of 50 degrees with the horizontal.An assistant standing on the level ground 150m downrange from the launch point throws an apple straight up with the minimum intial speed necessary to meet the path of the arrow. (...

**Physics help!!**

Thank's,i do appreciate ur help.

**Physics help!!**

A tire 0.500 m in radius at a constant rate of 200 rev/min.Find the speed and acceleration of a small stone lodged in the tread of the tire( on its outer edge).

**Physics**

Thank you...

**Physics**

A science student is riding on a flatcar of a train travelling along a straight horizontal track at a constant speed of 10.0 m/s.The student throws a ball into the air along a path that he judges to make an initial angle of 60.0 degrees with the horizontal and to be in line ...

**science**

A tire 0.500 m in radius rotates at a constant rate of 200 rev/min. Find the speed and acceleration of a small stone lodged in the tread of the tire ( on its outer edge ).

**Math**

Wouldn't you multiply the 5 by 3 and the 3 by 5 because you're getting common denominators instead of adding?

**Math (Algebra)**

solve by factoring: 7y^2+12y+13=3y^2+4

**Accounting**

I have most of them done but would like to have these ones double checked... Please Help!!! 12. Research and development costs (R&D) are generally A. listed as "long-term assets" on the balance sheet. B. expensed and become part of the income statement. C. listed as...

**algebra**

joe is going to build a retangular lap pool. the perimeter of the pool will be 240 feet. the length of the pool will be 20 feet more than 3 times the width. find the length and width

**Outline**

But first can you tell me what recreation means in 6th grade language?

**Outline**

I know i'm getting annoying with all of these questions but I need help on one more. Can you give me a link to find the recreation of Port St Lucie?

**Outline**

never mind sorry, you were right, I was sadly wrong but thank you for caring.

**Outline**

Thank you, and 'Writeacher' I kind of meant something more like Port St Lucie's education not edcation in port st lucie.

**Outline**

Can you help me find a link on Port st lucie's education? PLEASE ANSWER IF YOU SEE THIS.

**algebra**

x+15=85

**U.S history 8th grade**

and thank you so much for the help you have given me, and used your time to helped me understand my worksheet! :-)

**U.S history 8th grade**

oh ok, its maybe how i read it that's maybe why :-)

**U.S history 8th grade**

and this question is weird to me: how were colony financed?

**U.S history 8th grade**

oh ok, well i will put your men and the men in my book... cause i won't get points off for that cause i don't know so i will talk to my teacher about it :-)

**U.S history 8th grade**

Ms.Sue~~ i reed the book like 5 times and says 2 names.... and they weren't those names

**U.S history 8th grade**

ok cause my U.S history book says someone else but the school books can be wrong, and thank you so much to both of you :-)

**U.S history 8th grade**

and i need the answer fast :\

**U.S history 8th grade**

who was the founder of roanoke island? that is the last question on my U.S history worksheet!!!!!

**math**

can u check my answer please

**math**

is the answer 4 times

**math**

is the answer 4X

**math**

a ball is dropped 128 feet from the roof of a building with each bounce the ball goes up exactly half its previous height. A man is sitting at his desk on the second floor. How many times will he see the ball if his eye level is 15 feet above the ground?

**English**

The questions says, he is always late unfortunately. Late is the word underlined. Is late an adjective ?

**physics**

A uniform 1.3-kg rod that is 0.80 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are 60 N/m and 35 N...

**science**

Which planet by itself contains the majority of mass of all the planets? saturn jupiter uranus venus earth

**Economics**

Do government statisticians calculate GDP by simply adding up the total sales of all business firms in one year? Explain..

**algebra**

HELP!! It takes 64 inches of ribbon to make a bow and wrap the ribbon around a the box. The box takes 30 inches of ribbon. The width of the box is 12 inches. What is the height of the box?

**algebra**

How many black keys are there in one octave?

**Chem2**

The Ksp for Ag2SO4 is 1.1x10^-5. Calculate the standard free energy change for silver sulfate dissolution at 25 degrees.

**Chem2**

Copper(II) iodate precipitates from iodate solution. The formula of the precipitate is CU(IO3)2. A saturated solution of this substance was made in 0.01 M KLO3. The copper concentration was found to be 0.0013 M. Determine the [IO3-] and Ksp of the substance.

**algebra**

-20j+5

**Physics**

A circus performer juggling while standing on a platform 15.0-m high tosses a ball directly upward into the air at a speed of 2.0 m/s. If it leaves his hand 0.5 m above the platform, what is the ball's maximum altitude? If the juggler misses the ball, at what speed will it...

**word problem**

A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.

**Chem 2**

HNO3 ?

**Chem 2**

Which solution will have the lowest pH ? A. .10 M HCN B. .10 M HNO3 C. .10 M NaCL D. .10 M H2CO3 E. .10 M NaOH

**grammar**

a predicate is one of the two main parts of a sentence the other being the subject, which the predicate modifies. so with that i think its "live in the cold"

**Chemistry 2**

Which solution will have the lowest pH ? A. .10 M HCN B. .10 M HNO3 C. .10 M NaCL D. .10 M H2CO3 E. .10 M NaOH

**Chemistry 2**

thank you so much!

**Chemistry 2**

The pH of a 0.175 M aqueous solution of a weak acid is 3.52. What is Ka for this acid ?

**Math**

|x-4/2|-1 > or equal to 7

**math**

can you multiply unequal groups?

**college**

I have to write a paper 500-750 words addressing the following. (1)What are the essential components of a worldview. And (2)what is your personal worldview and how does it affect your decision making.On the second question i would like to know the definition of a worldview ...

**103 intro to philosophy and ethics**

I was asked why is a worldview a complex of various components and how do those components cohere?

**culteral Diversity**

E. integration

**Science-9th**

Which of the following are characteristics of all animals? A.multicellular, haploid cells that divide by mitosis, organisms with organ systems B.multistage zygote development, vertebrates, reproduce sexually C.99 percent invertebrates, heterotrophs, multicellular D.both a and ...

**Calculus**

So I have a function of two variables f(x,y)=y^x. where is this function continuous? I'm thinking that the only restriction that applies is y>0

**Geometry**

I have several questions, because my geometry final is tomorrow. I've completed most of the review, but can't seem to figure out these questions. It would be great if someone could tell me how to solve each equation. 1. Find the radius of the circle with the given ...

**>>>>>>>>AP SCIENCE**

What is the light spectrum for copper sulfate? What color flame does copper sulfate create when it is reacted with fire?

**Science**

What is the light spectrum for copper sulfate? What color flame does copper sulfate create when it is reacted with fire?

**History**

I don`t know the answer to this question. How did common criminals serve the NAZI Third Reich? I looked everywhere. I can`t find an answer. =[

**science**

a chemical change is when you cant see it hope this was helpful join the club i was stuck on this homework aswell...

**orientalism of muslim and arab american**

Looks like the beat is continuing, its 2009 and now I am looking for an answer, thanks for the input, from everyone.