# Posts by Nikki

Total # Posts: 741

**Physics**

An 825-kg race car can drive around an unbanked turn at a maximum speed of 59 m/s without slipping. The turn has a radius of curvature of 135 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 2700 N on the car. a) What is the ...

**English**

"My hand was positioned as if I was holding an orange to the piano, just as she said." Is it "I was" or "I were"? People normally say "I were", but I don't know if that's actually grammatically correct. Thanks!

**Chemistry**

I need some help with writing reactions. I have the following to write out: a. the hydration of copper sulfate b. the reaction of liquid sulfuric acid to form aqueous sulfuric acid c. the reaction of calcium oxide w/ water to form calcium hydroxide For a, I know copper sulfate...

**Physics (repost)**

(I'll try to describe this the best I can, it's a little hard without showing a picture) This question deals with projectile motion: An archer is standing 150 meters above another archer 450 meters away [so visually the 150m and 450m make the right angle]. The archer ...

**Physics**

(I'll try to describe this the best I can, it's a little hard without showing a picture) This question deals with projectile motion: An archer is standing 150 meters above another archer 450 meters away [so visually the 150m and 450m make the right angle]. The archer ...

**math**

g(x) = abs(f(x)) [abs = absolute value] How exactly do I explain this transformation? I don't think "y-values turn positive, matching x-values of f" works very well. An example of another transformation: g(x) = 3f(x) ~Vertical dilation by a factor of 3. So how do...

**finance**

14. Lear, Inc., has $800,000 in current assets, $350,000 of which are considered permanent current assets.

**U.S. History**

What exactly were the colonists' reactions after the King issued the Proclamation of 1763? I know "shocked" and "feeling like they can't doing anything without England stepping in" are the obvious ones, but was there anything really specific? On the...

**finance/math**

N-84 (7*12) I\Y-12% P\Y-1 C\Y-1 PV-(8000) PMT-0 FV-108,994,326 I think you do it this way but the number is too big...

**Chemistry**

why are diamond tips used on industrial drills?

**algebra**

my teacher wants us to do problems 1-99 in our books, he wrote it on the board like this; "EEO #1-99" what dose EEO mean?

**Math**

Graph and identify the kind of conic the graph represents: a. x(t)=3 cos t y(t)=3 sin t on [0,2pi] b. x(t) =2 cos t y(t) =5 sin t on [1,5] I tried graphing A on my TI-89 calculator as y(1)=3 cos x and y(2)=3 sin x. All I see are two wave-like graphs crossing each other; I don...

**Math (repost)**

Graph x = y^2-6y+11 a. In function mode using two functions b. In parametric mode I already figured out how to graph it in functions, which is +/-sqrt(x-2)+3. The graph is a sideways parabola in the first quadrant opening to the right. I have no idea on how to come up with ...

**math**

Graph x = y^2-6y+11 a. In function mode using two functions b. In parametric mode I already figured out how to graph it in functions, which is +/-sqrt(x-2)+3. The graph is a sideways parabola in the first quadrant. I have no idea on how to come up with parametric equations for...

**Math**

Thanks! That really helps. However, what about the Cartesian equation? Am I on the right track with that?

**Math**

(With a TI-89 calculator) Graph x(t) = 3t^2 and y(t)=2-2t on [0,1]. Write a Cartesian equation that models this graph. Identify the initial and terminal points. I graphed both equations, but I didn't really get what [0,1] meant. I think it's an interval. Also, with the...

**Technology in Health Services**

Imagine you work for a health care or human service organization that does not use an intranet. Write a proposal to management that lists the elements of an effective intranet, why each element is important, and the benefits of building an intranet as opposed to only using the...

**pronoun case**

Which is proper english and why? 20a. My best friend and I are going to Hawaii this summer. 20b. My best friend and me are going to Hawaii this summer.

**literature**

The Call of the Wild, the supplies brought on the sled of Hal, Charles, and Mercedes, taken symbolically, represent A. their defining success in terms of possessions. B. life triumphing over death. C. an idealistic lust for life. D. an effort to bring civilization with them.

**science**

according to scientific hypothesis, how were earth's oceans formed? when do scientists hypothesiz they formed?

**medical terminology/biochemistry**

To fully eliminate all infectious microorganisms, which of the following measures must be used? A. Cleaning B. Washing C. Disinfection D. Sterilization

**Math**

Which of the following are examples of multiplicative inverses? 1) csc x and sin x 2) tan x and cot x 3) cos^-1 and cos x 4) ln x and e^x A. All of these B. 1 and 2 C. 1,2, and 3 D. 3 and 4 I know it's not all of them...but I'm leaning toward B. Help please? Thank you!

**Linear Algebra**

In 3-space, a plane abc is spanned by three points a, b, c. The point x does not lie on this plane. I'm trying to find the formulas used to find the point p on abc with minimal distance to x. I know the point p must be perpendicular to the point p and the plane. So, I ...

**physics**

A sled with a mass of 9.50 kg moves in a straight line on a frictionless horizontal surface. At one point in its path, its speed is 2.80 m/s; after it has traveled 2.50 m beyond this point, its speed is 6.50 m/s. Use the work-energy theorem to find the force acting on the sled...

**physics**

i still don't understand

**physics**

A soccer ball with mass 0.410 kg is initially moving with speed 4.30 m/s. A soccer player kicks the ball, exerting a constant force of magnitude 44.0 N in the same direction as the ball's motion. Over what distance must the player's foot be in contact with the ball to ...

**Math**

How do you figure out the csc(-390deg)? Thank you very much!

**math**

In a bottling company, a machine can fill a 2-liter (L) bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many 2-L bottles can be filled by the machine in 2 h?

**litureature**

why not just help the kid who cant even spell literature lmao xD

**English**

What is a unnecessary shift, necessary shift, and a no shift?

**math**

2x+2x+2x 6x

**Chemistry**

What's the difference between ionic and covalent bonding? ~thank you

**Cultural Diversity**

What are pertinent issues between Native Americans and the federal government?

**chemistry**

i am not doing it right , first i got Hydrogen and then Helium...im not sure what im doing wrong

**chemistry**

A sample of neon effuses from a container in 73 seconds. The same amount of an unknown noble gas requires 149 seconds. Identify the gas.

**algebra**

keisha told her swim coach that she would swim at least half a mile. If one lap is 50 yards, what is the fewest number of laps she must swim?

**algebra**

jack and jessica earned the same amount last wek. They both work for the same hourly rate. Jack worked 18 hours and had $42 deducted from his pay. Jessica worked 15 hours and had $18 deducted from her pay. what was each person's last week salary?

**chem**

The air in a bicycle tire is bubbled through water and collected at 25 C. If the total volume of gas collected is 5.65 L at a temperature of 25 C and a pressure of 735 torr, how many moles of gas was in the bicycle tire?

**chem**

thank you!

**chem**

im not sure how to approach the problem i got 11.6 L

**chem**

Use the molar volume of a gas at STP to determine the volume (in L) occupied by 10.5g of neon at STP.

**Chemistry**

How can i find the manganese content of tea?

**AP World History**

On comparing Rome and Han China in a practice comparative essay for the AP Exams: "Rome and Han China had similarities in society, government, and how their empire fell, as well as differences in these same three areas." Is this a good thesis statement? If not, I'...

**AP World History**

On slaves in Rome and China (753 B.C.E.-600 C.E.): What are some of the passive-resistance tactics that slaves resorted to, and what did they achieve by these actions?

**Geography**

How do I find and plot the coordinates for all of the Florida huricaines in 2008 from Aug 28th until now?

**math**

Describe some practical applications for fractions in your daily life. What are the challenges you have experienced regarding the use of fractions? Explain your answers.

**Math**

(4b^4+2) - (7b^2-5) - (6b^4-2b^2) How do you exactly solve/simplify this? I get confused with the signs when it comes to adding/subtracting terms like these. Thanks much!

**Math**

Oh, wait...It should actually be this (sorry!) {[(6x+1)^3][(27x^2+2)}-{(9x^3+2x)](3)[(6x+1)^2](6)} over [(6x+1)^3]^2

**Math**

[(6x+1)^3][(27x^2+2)-(9x^3+2x)](3)[(6x+1)^2](6) over [(6x+1)^3]^2 Help me simplify please? Here's what I got so far: [(6x+1)^5]{(27x^2+2)-[x(9x^2+2)]}(18) over (6x+1)^6 It says in the back of the book (it's an odd problem that the answer is 27x^2-24x+2 over (6x+1)^4 ...

**Math (Calculus?)**

sorry about that. it was written like that in the book o.o'' It should be this (I think): [x^5*(-3)*[(x^2+1)^-4]*(2x)] - {[(x^2+1)^-3] * [(5)x^4]} over (x^5)^2

**Math (Calculus?)**

[x^5(-3)(x^2+1)^-4(2x)]-(x^2+1)^-3(5)x^4] / (x^5)^2 Can someone show my how to simplify this, step by step? So far I got that the denominator should be x^10 because of the exponents, and (x^2+1)^-4 could be simplified as [(x+1)(x-1)]/4, likewise with (x^2+1)^-3, except the ...

**Math**

5x^2 + 26x + 5 Besides guessing and checking, is there any other way or "trick" (preferably not time-consuming) to factor polynomials whose leading coefficient is NOT 1? Thanks much!

**Math**

(2x^2)^3/2 / 2^1/2x^4 can someone tell me how to simplify this? thanks much!

**algebra II**

this is called equations utilizng inverses how would i solve this problem: [ 15 18 ] = [ 6 -3] [ 34 27 ] [ 7 -2] A

**algebra ll**

how do i find the inverse of the matrix [ 10 9 ] [ 8 -1 ]

**science**

Describe at least three potential indoor air quality (IAQ) hazards in your home. What are the possible health impacts of each hazard? Do you believe your health is at risk based on your exposure to the three IAQ hazards? Why or why not? What can you do to reduce exposure to ...

**English**

Is there a site where it can accurately check grammar? I use the the Word grammar/spell check, and it still messes up at times :/ thanks much!

**science**

Provide a one sentence description of typical precipitation and temperature for summer and winter. Use terms such as cool, cold, warm, hot, dry, and wet. Then, identify the characteristics of a plant and animal that is seen regularly in your region. How do the characteristics ...

**algebra**

hi i was wondering if u can help me with this problem which says...stopping distance is breaking distance plus your reaction time. suppose you are told that the stoppin distance D is related to speed S by this equation: d(s)= 0.05s to the 2nd power+2.15s+1 and i need to slove ...

**Law and Ethics**

I submitted my HIPAA RESEARCH PROJECT and it was graded within 3 days. I received an 84!

**Law and Ethics**

I am also taking this same course with Penn Foster for Health Information Technology. I have been stuck on this research paper for about 1 month now. I'm wanting to finish it so badly. I have most of the answers except the one about the written privacy policies and ...

**INTRODUCTION TO PSYCHOLOGY**

What are some of the ways that Psychologists attempt to explain human behavior? One of the major debates within the field of Psychology is the degree to which nature versus nurture shape human behaviors and traits. What comprises our nature? How would you define nurture? How ...

**science**

thank you for the tip

**science**

Create an outline of the risk of using Malathion according to the four steps of risk assessment presented in Ch. 4, p. 73, Figure 4.1: o Hazard identification o Dose-response o Exposure o Risk characterization · Decide your vote for the city council based on your ...

**Environmental Science**

Post your response to the following: Reflect on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position.

**AP World History**

A study question for George Orwell's "1984": Why is what the Party does to Winston UNLIKE other times in history when enemies were dealt with? The answer's going to be somewhere from the beginning of Part Three to Ch. IV, I'm just not sure what to answer...

**World History**

"A hierarchial society was only possible on a basis of poverty and ignorance." - From George Orwell's 1984 My first thought for the meaning of this quote was that a leveled society (low-med-high "class") would only be established by the poor and ...

**205**

In three of last four presidential races, the winner of the iowa repbulican primary has not captured the republican nomination. Therefore, the winner of the next iowa republican primary will not capture the republican nomination

**Social Studies**

Who deliberately stayed away from the covention during a crucial vote so that his colleague could cast Maryland's vote with a smaller state? Was it George Washington, Luther Martin, Danial St.Thomas Jenifer, or Abraham Baldwin.

**Math - Geometry**

Another question, hehe: By "two ends", you mean the radii of the circles?

**Math - Geometry**

A cylindrical solid has a cylindrical circular hold drilled out of the center. Bascially, it's a circular cylinder with a hollow spot right down the middle. Find the surface area of the resulting solid. radius of larger circle: 2in radius of smaller circle (hollow area): ...

**english**

what are the branches of english

**Geometry**

Find the area of a regular pentagon with radius 3cm. Round to the nearest tenth. No picture is given, but I believe a circle can surround the figure. I'm not really sure how to find the area of the figure when the side length isn't given. Can you guys help me? Thanks ...

**physics**

did anyone get the answer to this problem?

**religion**

The basis of Jewish faith is found in which part of the Bible?

**literature/poetry**

bob that made me laugh lmaooo

**science**

what is the name of the force that slows the boat down

**algbra**

It was an acher!

**Geometry**

The question is to find the measure of arc PQ in Circle A. The point A is the center of the circle, and the chords PR and SQ intersect at the center. Arc PQ is (3y-10), while arc SR is (2y+20). I know there's a theorem that states that when two chords intersect in the ...

**Geometry**

A circle is circumscribed by a pentagon. The sides are all tangent to the circle. (It's a bit hard to explain without a picture, so I'll do my best.) The pentagon is QSUWY. However, there are points in between all five sides. In SQ lies point R, SU point T, UW point V...

**english**

I asked a similar question earlier, but I wasn't clear enough. The subtitle of Auden's The Unknown Citizen is "To JS/07/M/378 This Marble Monument is Erected by the State" So, is the entire poem an obituary written on the monument? Or is it a government ...

**english**

Okay... these are a lot of questions! would Auden's 'The Unknown Citizen' be an example of reductio ad absurdum? And is the entire poem an epitaph? Or is it simply the persona speaking? Would you say it is a combination of elegy and satire?

**Physics**

When you look at a distant galaxy through a telescope, how is it that you're looking backward in time?

**TO PsyDAG**

Thank You

**Physics**

Why do objects illuminated by moonlight lack color?

**TO PsyDAG**

Thank You for your help

**Physics**

What astronomical event would be seen by observers on the Moon at the time the Earth experiences a lunar eclipse? At the time the Earth experiences a solar eclipse?

**Social Science**

Charateristic of nonverbal and verbal communication for audiences in tense situation (supervisor & instructors)

**science**

Does asexual reproduction use meiosis or mitosis?why?

**AP CHEM**

help please. i don't even know where to start An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a temperature of 15?C. When the container is evacuated and refilled with a ...

**DeRidder High**

I HAVE A TAXONOMY PROJECT DUE TOMORROW AND I REALLY DO NOT UNDERSTAND EXACTLY HOW TO DO IT. AT THE TOP IT SAYS "IN THE YEAR 2525" I DO NOT KNOW HOW TO WORK THIS. CAN YOU PLEASE HELP ME OUT????

**OCS**

2X or X squared ????

**OCS**

What is X times X

**1ST GRADE GRAMMAR**

"I" is the subject. "gave an apple to the horse." is the predicate.

**English**

What are some ideas of writing a satire or parody of a stereotype in todays western world.

**Math**

Please help with this question. Determine an algebraic model for Alvins data and use it to make a reasonable prediction for the population in 2036. I am having trouble with the algebraic model. thanks

**English**

Could you give me an example of a stereotype satire, this sort of confuses me as well. Thanks

**English**

I have to write a movie/tv script satirizing/parodying gender stereotypes as they are seen in western media today. It has to have one female and male gender stereotype but the twist is we must satirize the gender stereotypes in our script. Could you please explain this to me ...

**Math - Geometry**

Two right triangles are touching at the tips. The left triangle has the 90 degree angle to the bottom left, and 33 degrees on the bottom right. Based on this info, the other angle is 57 degrees. The right triangle has the right angle given, but it is on the top right, and the ...

**Math -**

-3R-15=3R-3 -6R=-12 -12/6=2 R=-2