# Posts by jeremy

Total # Posts: 289

**Physics**

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

**Physics**

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

**Physics**

This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?

**chemistry**

what is the difference between electron affinity and ionization energy?

**chemistry**

how does the length of time relate to the amount of heat absorbed?

**algebra II**

4 to the fifth power times 4 to the third power divided by 4 to the sixth power

**algebra II**

5 3 4 . 4 _______ 6 4 I really need help with this math..I don't understand it and all I have is a worksheet with no examples...I am a 10th grader...any help would be appreciated. Jeremy

**4th grade math**

the answer is 9

**math**

how many yards in 48 in. in decimal form rounding to the nearest hundreth

**literary**

Choose 3 selections from literature that are united into one topic or theme. Your topic can be united by subject, author, genre, style, etc. (requirement) Good speeches will have one clear main topic throughout. My topic is (Remembrance) Thanks for any help.

**chemistry**

I'm looking for the Lewis structure but not PbCl2. I need the Lezis Structure of PbCl3.

**chemistry**

What is the Leis Structure for PbCl3?

**computor programming**

is the design phase of a give project only as good as the analysis of the previous phase

**history**

How might have the maps indication of where Native Americans lived strengthened European claims of sovereignty?

**algebra**

14+x2 simplify

**Math**

Find the quotient 3(cos (5pi/12) + i sin (5pi/12) / 6(cos (pi/12) i sin (pi/12)). Express the quotient in rectangular form. I have no idea what I did but I got (1/4) - 433i/1000.

**Pre Cal.**

1. Identify the conic section represented by: 9y^2+4x^2 - 108y+24x= -144? Is it ellipse. 2. Find the coordinates of the vertex and the equation of the axis of symmetry for the parabola represented by: x^2 + 4x - 6y + 10 = 0. vertex: (-2 , 1) axis of symmetry: x = -2

**Pre Cal.**

Express 5sqrt(3) - 5i in polar form. A: 10(cos(11pi/6) + i sin(11pi/6)) Express 4(cos(3pi/4) + i sin(3pi/4)) in rectangular form. A: -2sqrt(2) + 2sqrt(2i Write 2x+y=5 in polar form. A: sqrt(5)= r cos (theta-27degrees) Are these correct?

**Pre Cal.**

The expression 81p^4 + 108 p^3 r^3 + 54p^2 r^6 + 12 pr^9 + r^12 is the expansion of which binomial? A: (3p+r^3)^4 The fifth term in the expansion of (3x^2-sqrt(y))^6 is _______. A: 135x^4y^2

**Pre Cal.**

Find three geometric means betwee -sqrt(2) and -4sqrt(2). A: 2, -2sqrt(2), 4 Is 6 sqrt(2)+ 6 + 3sqrt(2)+... a convergent series? A: Yes. Is 1 + 3(1/2) + 9(1/2)^2 + 27(1/2)^3 +... a divergent series? A: Yes. Are these right?

**algebra 2**

how do i find the radical notation of 25 -1/2?

**Latin**

In what instances do you use the nominative for the word preceding "of the," in oppose to the genitive. For example, in some of my sentences, I have the nominative, like "Forma terrae in Sicilia plana non est." But other times, it is genitive "Curae ...

**Latin**

Multi Romani copiam aquae in carris spectant. Would this translate to "Many Romans see the suply of water in the carriages?" Thanks, hopefully this will be the last question.

**Latin**

The sentence is: Agricolae equi in reginae terra (with a macron) sunt. The answer is "the farmer's horses are on the queen's land." What ending are you supposed to use for something following an 's or s'? Doesn't this sentence use two different ...

**Latin**

Oh whoops I forgot the translation for 2. I said "Many servants on the island are big."

**Latin**

Would you mind checking my translations of these? 1. Silvas claras insulae magnae spectatis. You (plural) see the clear forest of the large island. I wasn't sure if I properly did the "of" part. 2. Numerus servorum in insula erat magnus. I said this meant Numerus...

**CALCULUS**

Use the Midpoint Rule to approximate the integral: (10x-3x^2)dx from -1 to 5 with n=3

**math 115 9.4 #80**

(-3)^3-(-8)(-2) = (-27)-(+16) = -11

**The court system**

I think that what it is telling you to do is to write 1400 words about how some poeple think that the court systen can be funny, like in a television show, compared to how serious it is in real life.

**Business Math**

with limited information I can only tell you that to find the end of day balance you have to add up your accounts received and accounts payable, your sum of items taken in....subtract any money that was given out (accounts payable) from the sum of money received.....if you ...

**English- vocab**

I think you were right. It could be mystery. It could also be phenomenom.

**chem**

[Xe] 4f14 5d10 Always follow this pattern: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s...

**Chem**

No problem!

**Chem**

Use a bomb calorimeter... or some kind of calorimeter... I'm just guessing; hopefully the calorimeter idea isn't stupid! Good luck.

**chemistry**

The double-slit experiment shows that it acts as both a wave and a particle. Look that up on google or something for more information.

**Algabra**

5/a=?/a^2 5a^2=a? 5=(a?)/a^2 5=?/a or 5a=? or a=?/5 If that's what your question is asking for, I hope that helps.

**physics**

The bowling ball and the volleyball will have the same acceleration. I'm not exactly sure about the car thing, but it's probably because the front meets the most air resistance, pushing it down while accelerating, and when it brakes, the air resistance in the front is ...

**physics**

If I'm not mistaken, it's 9.097155832 grams, which you can round as you see fit. 913.5 J = m x specific heat water x 24 degrees Celcius. Specific heat of water is 4.184 J/(gC). Solve for m.

**Math**

Use the formula x = negative b, plus or minus the square root of b squared minus four ac, all of which is divided by 2a. Formula: [-b+/-sqrt(b^2-4ac)] / 2a

**2nd grade**

Time machine.

**physics**

heat = mCpTsub(f-i) 609 J = (1.2kg)(4184 J/kgC)(Tf - Ti) [609 J/ [(1.2kg)(4184 J/kgC)]] -5C = Tf Tf = -4.87... degrees C. for part A For Part B: Use the same equation, except multiply heat by 3. Solve for the new mass, then divide that mass by the old mass (1.2kg) to get the ...

**chemistry**

I disagree with Dr. Russ's method. Use PV=nRT, where P=2.3atm, V=120L, n= unknown moles, R= .08205, T=340K. Solve for n to get 9.9 mol gas. Without significant figures, n=9.893536939.

**physical science**

what are the general properties of an acid an a base

**science**

a protist kingdom are animals which have mostly one cell, microorganisms and reproduce by splitting in two. Animal kingdom are animals which have many cells and reproduce with eggs thay either grow inside the body or outsidethe body

**algebra**

The number of students attending the fall play was 150 more than the number of adults attending. Students tickets cost $3, and adult tickets cost 45 . A total of $4730 was collected. How many students attended the play? this is what i have, but i need help on the equation. let...

**7th grade pre algebra**

What is the difference between bar graphs and histograms.

**science**

I am trying to find out about the internal organs of the mealy bug and a drawing of a male and a female

**Math**

What is the length of the longest rod that can be placed in a hollow cube of side 10 feet? in this problem we are supposed to use Pathagorem Theorm.

**Algebra II**

1. -7

**Math**

How do you a equation like: 4x + X +2(42-6)-23 + 5x =81 _ 2

**science**

GCU

**math**

An isosceles triangle automatically has 2 equa; sides. So if you can fin the length of the sides then that will prove that they are equal.

**geometry**

1. Find the area of the square. 2. Find the area of the circle. 3. Subtract the area of the square-area of the circle.

**English grammar**

I think the first and third one are correct.

**math**

I think, but i'm not sure that it is 700,000

**algebra**

You plug in one value as 'x' to find 'y'. or vice versa. ex. y=2x I will use 1 for x 2*1=2 so, y=2 WHen you plot this on a graph you plot it as (1,2). 1 being on the x-axis, and 2 on the y-axis.

**Biology**

Kingdom

**algebra**

also you can first find y in the equation(s), and then find the slopes, and finally multiply the slopes.

**algebra**

Perpendicular lines are lines that intersect to form a 90 degree angle. What is the equation you are doing?

**Math**

x+2 x+2 --- Divided by --- x-5 x-1

**math**

solve x-3y=9 3x+y=7

**math**

ok. but how would you write an equation for that?

**math**

If a bottle and a stopper cost $1.10. How much does the stopper cost.

**math**

If a bottle and a stopper cost $1.10. How much does the stopper cost.

**math**

yes you are correct

**French**

What is a reseau sementique

**Calculus**

I'm not sure how to solve the equation 5^x-12*(5^-x)-1=0

**algebra**

gc monitor

**algebra**

gc

**Math Linear Programming**

I need to find out the constraints and the variables so that I can input and solve in excel or management scientist. I don't know how to configure this information, can someone help me? Tots Toys makes a plastic tricycle that is composed of three major components: a ...

**the novel**

After having lived with her for a year, Chad studied Marilou's eyes across the table, realizing he had never had a clue about what make her tick." This sentence from a hypothetical novel suggests what kind of narrative voice

**chemistry**

I am a gc monitor.

**chemistry**

Luly, This is a gcu question, right?

**chemistry**

luli, we are suppose to figure this out on our own!

**Math- consecutive intigers**

-10,-9,-8,-7,-6,-5,-4,-3,-2,-1.0,1,2,3,4,5,6,7,8,9,10

**Jeremy: read this**

sorry

**Algebra**

what is n? 3 n -+- =2 8 4

**Math**

The answer is 224

**Algebra**

How do I solve this: 3 n - + - =2 8 4

**7th grade geometry**

define volumen .define surface area.how i find the surface area of the prism?

**science**

What kind of streams form v-shaped valleys? Streams that are first forming,streams that move slowly, streams that have meanders?

**American History**

What were the causes of the war of 1812?

**Math**

can someone please explain to me how to do place values ant the powers of ten

**Science Check**

would it be 55

**Chemistry**

Can Someone explain the physical properties of metals, using the theory of metallic bonding There is a lot of reading here, most of it not what you are looking for, so scroll down ABOUT half way and you will come to a paragraph that explains conduction of metals as the metal ...

**Science**

You would end up with a cell that contained more than one nucleus. This is because all the nucleur material will be split but the cytoplasm wasn't.

**prokaryotic/cells**

We just got through with a lab and we looked at ecoli, anabaena. There first section is prokaryotic cells and the question is did all living cells you saw in the lab contain mitochondrion. I know mitochondrion is the energy powerhouse of the cell but see nowhere in the first ...

**math (algebra)**

Hi. At the sit for mcgraw hills algebra 1 book (website URL is obvious), but don't have a name or password! Could somebody please lend me theres? post it here! Viit Viit! Your teacher needs to register you. http://www.glencoe.com/sec/math/ose/index.html

**social studies**

Does anybody know a city or town that starts with x? world-gazetteer . com My student atlas shows several towns beginning with X -- including: Xankandt, Azerbaijan Xenia, Ohio, U.S. Xiaguan, China Xichang, China