Jim

This page lists questions and answers that were posted by visitors named Jim.

Questions

The following questions were asked by visitors named Jim.

A mixture of chromium and zinc weighing .362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted 225 mL of dry hydrogen gas was collected at 27 C and 750 torr. Determine the mass percent Zn in the metal sample. [...

Can you please help with this problem. I don't know how to solve it at all. A uniform solid disk with a mass of 32.3 kg and a radius of 0.464 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk. (a) What is th...

On a number line, the coordinates of A, B, C, and D are -5, -2, 0, and 3 respectively. How do I find the length of each segment? Are they congruent? Can't you just "count" the units between points? This looks like a trivial question.

Is it possible for AB = 10, BC = 2x + 5 and AC = 5x, given that point B is the midpoint? If you are talking about lengths of a line segment ABC, with B the midpoint, then AB + BC = AC 15 + 2x = 5x 3x = 15 x = 3. But also we must have AB = BC for B to be a...

An isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. can someone show me how to solve?please The triangle is isosceles if AB = BC, or BC = A...

B is the midpoint of line Ac AB=3x AC=7x-5 How do I find what the value of BC is? Since B is the midpoint, AB = BC 3x = 7x -5 4x = 5 x = 5/4

In isosceles ABC, B is the vertex. The measure of angle B can be represented as (8x+2). The measure of angle A can be represented as (9x-2). Find the measure of all three angles of the triangle. Be sure to name the angle with it’s measurement (ex: angle A...

Can you please provide me a starting point for these two questions Question One: Three charges are located on the +x axis as follows: q1 = +26 µC at x = 0 m, q2 = +13 µC at x = +2.0 m, and q3 = +42 µC at x = +3.5 m. (a) Find the electrostatic force (magni...

I don't really understand this aspect of physics yet, I need help understanding these problems. Problem One: Two particles, with identical positive charges and a separation of 2.00 10-2 m, are released from rest. Immediately after the release, particle 1...

Can please help me understand this question? A capacitor has a capacitance of 2.0 10-8 F. In the charging process, electrons are removed from one plate and placed on the other plate. When the potential difference between the plates is 540 V, how many elec...

I am also having problems understanding how to complete this problem, any help would be greatly appreciated. Two capacitors are identical, except that one is empty and the other is filled with a dielectric ( = 4.20). The empty capacitor is connected to a...

What resistance must be placed in parallel with a 152 resistor to make the equivalent resistance 111 ? Please help!!!!!

Two resistors, 46.0 and 64.0 , are connected in parallel. The current through the 64.0 resistor is 3.40 A. (a) Determine the current in the other resistor. _________ A (b) What is the total power consumed by the two resistors? _________ W Please help!!!!!

Please Help!!!! Find the current in the 10.0 ohm resistor in the drawing (V1 = 21.0 V and R1 = 27.0 ohms). The drawing is in the shape of a rectangle that has one straight line down the center. On the left top line is R1; on the right top line is 5.0 ohm;...

Please help!!!!! What resistance must be placed in parallel with a 152 ohm resistor to make the equivalent resistance 111 ohm?

I am reposting the this question. Find the current in the 10.0 ohm resistor in the drawing (V1 = 21.0 V and R1 = 27.0 ohms). The drawing is in the shape of a rectangle that has one straight line down the center. On the left top line is R1; on the right to...

Find the current in the 10.0 ohm resistor in the drawing (V1 = 21.0 V and R1 = 27.0 ohms). I will attempt to explain the diagram again. The drawing shows 2 parallel lines labelled as follows: A------------B-------------C D------------E-------------F A and...

I have tried to solve this problem, but I keep getting it wrong. Please advise on this question.My answer will be listed under the problem. An ore contains 2.79 g of silver per ton of ore. What is the concentration of silver in ppm? My Answer: 0014164.8

I have worked this problem out a number of ways, but every answer I come up with is incorrect. I have posted my last answers underneath the question. Please advise. (a) What is the mass percentage of iodine (I2) in a solution containing 0.060 mol I2 in 10...

I need someone to check my homework answers. I don't really know this stuff but i'm trying to do better in math this year. I didn't understand how to do some either. 1. √12 I got 2√3 2. √9a^3 I got 3a 3. √8 * √2 I got 4 4.3√50 I got 15√2 5. √32 I got 4√2...

I'm having trouble understanding a sine concept. For instance, I know that the sine of 15 is .25881. Likewise, the sine of 165 is also .25881. How can I find other values of sine that also equal .25881? Thank you very much.

If i want to ask what clothing you are wearing today, is it Quels vetements or Qu'est-ce vetements tu portes or portes-tu aujourd'hui?

I am trying to find tests physial/chemical to distinguish an aluminum and iron mixture.

Consider a perfectly inelastic head-on collision between a small car and a large truck traveling at the same speed. Which vehicle has a greater change in kinetic energy as a result of the collision? Since the vehicles stick together after the collision an...

In class, we completed a lab dealing with the range of a projectile. First, we dropped a metal ball down an inclined channel followed by a horizontal channel. We timed the ball on the horizontal channel and used this time and the channel length to find ho...

I also had another questin to go along with my lab. If a sponge ball, ping-pong ball, and a metal ball were rolling down the same incline on the moon, which would have the longest range? I figured that they would all have the same range since there is no...

Can we Connect two or more batteries of different voltage in parallel circuit?

The U.S.-dollar-per-euro exchange rate was 0.8703 on Monday and 0.8807 on Tuesday. Did the euro depreciate or appreciate relative to the dollar? How much in percent did it appreciate or depreciate?

State the value of the discriminant and the number of real solutions. t^2+14t+49=0 The value of the discriminant is 0 and the equation has no real solution.

complete the square(real or imaginary) a^2-12a+35=0 my answers are a=7 a=5

Can you please help with this question. The only thing that I have come up thus far is that I am using the z critical value because I am estimating a population proportion. Am I on the right track? An important issue facing Americans is the large number o...

Which object in the following pair has greater total internal energy, assuming both objects in the pair are in thermal equilibrium? a 1kg block of ice at -25 degrees Celsius or seven 12g ice cubes at -25 degrees Celsius

Why are the steam and ice points of water better fixed points for a thermometer than the temperature of a human body?

A 3.0 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.0 kg of water is raised...

I need a free report

I need help with these assignments. "Write a program to read a list of exam scores (integers in the range 0 to 100) and to output the total number of grades and the number of grades in each letter-grade category (90 to 100 = A, 80 to 89 = B, 70 to 79 = C,...

If the price of Honda ATV's increased while the number sold increased, then what must have happened in the market?

If supply increases and demand increases, the the price must drop while the number of units purchased may remain unchanged. T or F?

With an equation p(X=x)=e to the-lambda *lambda to the x/x how do you isolate for lambda if you know p ?

Geometry question. a Math riddle. What does a cat need to play baseball?

After selecting your quote, write a statement explaining your choice. Define your statement and discuss its importance to your life. Your statement must be at least half page in length. Express yourself!! This is my quote: I'm not lazy. I'm energy efficie...

I get everything, but I can't seem to crack this one out, only one I got problems on.. -sqrt[x^2 +1]/x + ln(x + sqrt[x^2 + 1])

Would Interest on both government and corporate bonds would be included as part of interest income in determining the GNP by the income approach

How do I solve y-5=3x

h ttp://i726.photobucket. com/albums/ww263/fornss/b iology2.jpg?t=1234820797 (remove spaces)

Can someone please help with this problem? A burnout test was performed to determine the volume fractions of constituents in a glass/epoxy composite. The following observations were made: Weight of empty crucible = 47.6504 g Weight of the crucible and sma...

Unscramble these 5 letters to form a St. Patrick's Day term? FETSA

What does the word innuendo mean in this context: the air is alive with chatter and laughter and casual innuendo. None of the dictionary definitions make sense.

Can harrowed mean worried? In the dictionary, I'm only finding that it has to do with farming, but in the context I see it in, it looks like it'd mean worried.

I have to design a laboratory activity to answer the question, "What is the relationship between the diameter of a circle and the area of the circle?" My teacher said to use a previous activity as a templete to help me. For the previous activity you had t...

y=2x+3 How do you find the inverse of this function? I know that you have to get the x by itself but i am not sure how.

Evaluate: 3^2 + 2^2 x 5 - sqrt 25 over 8 - 4 / 2 + 2 I am confused on the order in which I solve this. Please help!

All of the following are examples of how a local jurisdiction may have tried to inhibit African-Americans from voting prior to the Voting Rights Act, except: Poll Taxes Literacy Tests Intimidation and Violence Skin Color Comparison Tests Is the answer pol...

If the 13th, 14th, and 15th Amendments, which were passed almost 100 years earlier, guaranteed that African-Americans had the right to vote, why was legislation such as The Voting Rights Act of 1965 necessary? 1) States were passing laws that discouraged...

Which direction do meridians run and what do they measure?

If cashews cost $5.00 per pound and peanuts cost $1.50 per pound how do I write the formula to determine how many pound of cashews to mix with 30 pound of peanuts so that the mix will sell for $3.00 per pound.

evaluate (-8b)^2 and -8b^2 when b=10. (-8b^2)= -8b^2=

A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's" (recall that g = 9.8 m/s2). Calculate the force, in N, on a 68 kg person accelerating at this rate. 30"g" x 9.8 294 ms^2 f=ma 294x68 =19,992N

A passenger on a bus moving with uniform velocity lurches forward when the bus stops suddenly. Explain? I do not understand this

After 0.6523 g of is heated, the residue has a mass of 0.3423 g. Calculate the % H2O in the hydrate.

quick ratio that is much smaller than the current ratio reflects A. a small portion of current assets is in inventory. B. that the firm will have a high inventory turnover. C. that the firm will have a high return on assets. D. a large portion of current...

Which is a theme of both “One Thousand Dollars” and “By the Waters of Babylon”? -Things are not always what they seem to be -If you do what is forbidden, you will pay the price. -Love can change the world -Life is not always fair.

As the time required to run up the stairs increases, the power developed by that person Increases, decreases, or remains the same. Is the answer decreases?

Which functions are exponential? A)3x B)3^x C)3x^2 D)2^-x I think that B and C are exponential. Am I correct?

please help, I have a test tomorrow and i don't get this. solve by substitution 1. y = x - 3 x + y = 5 2. 5x + 2y = 0 x - 3y =0

Assume you are performing the calibration step of Experiment 8 and you begin with 80 g of water at 20 oC and 80 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,...

Calulate the wavelengths (in nm) of the visible lines in the line spectrum of hydrogen using the Rydberg equation (nf = 2; ni = 3, 4, 5, and 6).

What is the electron configuration of Cu2+?

assumptions to consider when organizing a graduation pool party

Project "goals" for a high school graduation pool party.

What is the rate of inflation of an item with a Consumer Price Index of 246.8 in 1991 and 362.4 in 1992? Round your answer to the nearest tenth.

True Or False Questions: The Crusades helped to increase the flow of trade in Europe The joint-stock company, in which individual men invested and profited in proportion to the number of shares purchased, was the principal instrument of England's overseas...

The rms speed of a sample of gas is increased by 5% . What is the percent change in the temperature of the gas? What is the percent change in the pressure of the gas, assuming its volume is held constant? please help!!

Why do you exist? I thought this was a realforum

How does lowering your estimated direct labor hours increase your net operating income at the end of the fiscal year?

Let me try this again How does shaving 5% off the estimated direct labor hours in the base for the predetermined overhead rate usually results in a big boost in net operating income at the end of the fiscal year?

40c to the 5th power over 10c to the 4th power in lowest terms?

Since capital are means of production e.g. machinery, how does that relate to the reward being interest? Business owners borrow money and pay interest but how does capital goods reward interest to business owners?

A 50.0-kg person takes a nap in a backyard hammock. Both ropes supporting the hammock are at an angle of 15.0degrees above the horizontal. Find the tention of the ropes.

a solution contains .25M Ni(NO3)2 and .25 M Cu(NO3)2. Can the metal ions be separated by slowly adding Na2CO3?Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no v...

The easiest fusion reaction to initiate is 1-1H + 1-1H------> 4-2He + 1-0 n The 1-1 indicates a small one above the other on the left side of the symbol of the element.So for 1-0n is a one above a zero on the left side of n (neutron). The number on the to...

what is the differential of ln (x)sqr?

Hi... a huge challenge for me, utilizing the software Photoshop 4, is to balance graphics and text without looking tacky. Any ideas????

explain why krypton can form compounds with other elements, but neon cannot

I have a solution made up of 100 ml of distilled water and 2.0g of NaOH. I need to determine the total volumeof the solution in order to the calculate the mass of the reaction mixture. How do I do this? We are to assume the density of the solution is the...

write a polynomial for the length of the rectangle: area is- 7xto the 4th power minus 14x. the width is 7x.

An aqueous solution contains 38.6 g NaCI per 155 mL of solution. This solution is _________.

Which of the following will increase the molar solubiity of Ag2CO3? (The Ksp for Ag2CO3 is 8.1 x 10^12.)

Sorry, I didn't finish the question: Which of the following will increase the molar sollubility of Ag2CO3? (The Ksp for Ag2CO3 is 8.1 x 10^12.) a. Add HCl b. Add AgNO3 c. Add NaCN d. a and c e. a, b, and c

Find the molar solubility of silver sulfide Ag2S. Ksp is 6.0 x 10^-51. I get 1.1 x 106-17. Right?

Is 50.0 mL of 1.0 M HF and 25.0 mL of 1.0 M NaOH a buffer with an approximate pH of 3? I say yes. Right?

Sorry I nee to add something. The Ka for HF = 1 x 10^-3. Is 50.0 mL of 1.0 M HF and 25.0 mL of 1.0 M NaOH a buffer with an approximate pH of 3? I say yes. Right?

Add 0.40 g of NaOH to 50.0 mL of 0.10 M HCOOH, and find approximate pH. No volume change, Ka HCOOH=1.8x10^-4. I get pH 8. Right?

Add 0.010 mol of solid sodium butanate, NaC4H7O2 to 100.0 mL of 1.0 M butanoic acid. No volume change. Ka for HC4H7O2=1x10^5. I get pH 6. Rught?

Add 0.40 g of NaOH to 50.0 mL of 0.10 M HCOOH, and find approximate pH. No volume change, Ka HCOOH=1.8x10^-4. I recomputed this and I get pH 5. Right?

Is 10.0 mL of 0.10 M NH4Cl added to 10.0 mL of 0.10 M HCl a basic buffer? I think Yes. Right?

What font do you recommend using that is universal on the different browsers? I am using verdana, which I thought worked well on different browsers.

11y-55/15 / y-5/33y

Can anyone please show me how to solve (5ã7-10ã2)(4ã7+8ã2)

Answers

The following answers were posted by visitors named Jim.

R1 5.0ohm A--XXXXX----B---XXXXX----C 1 1 1 1 X 1 1 X 10.0 ohm 1 1 X 1 1 X 1 1 1 1 1 ___10.0v 1 1 - 1 1 1 1 D--10.0v----E----V1------F

If this is a debate where your opponent can't heckle, don't use questions

thanks a ton! You saved me.

A magnet can only attract objects that are made of "ferromagnetic" materials (such as iron). A pencil is not made of ferromagnetic material and hence is not attracted to a magnet.

I think one may be spinning since it would separate the two with the iron falling to the bottom.

Is there any chemical or liquid I could add to the mixture that would separate it?

The sentences look pretty good. For the first sentence, you could say en el verano pasado so the reader knows you're talking about last summer, the past. In the second sentence, you need to say el carro. Carro is masculine.

Solve the problem two ways. (a) Use a geometric series. (b) Find a shorter way to do the problem. Based on dog cycles, the time between dog turn arounds. If the distance between the runners is d, (2/3) d (1/3) d *-----------------------------|------------...

a constructor that takes X, Y, width, and height as arguments; : 2. a constructor that takes only width and height as arguments; : 3. a default constructor; : 4. a method setCenter that takes X and Y as arguments; : 5. a method setWidth that takes a width...

I think it is false because the number of units purchased would have to change to stay at equilibrium level without creating a shortage?? I think?

i've only got like ten minutes so if anyone knows please HELP.

Thank you very much.

There are 9 one-to-one correspondences possible (2 sets of 3, thus 3^2)

The charge on the door must be electrically neutral. If the door were positively or negatively charged, the electrons in the balloon would be repelled from or attracted to the door, making the overall charge on the door side of the balloon negative or pos...

two equations : n+d=42 .05n+.10d=3.85 or 5n+10d=385

This is what i think. T F T F

Thank you so much for your detailed reply. My problem is that we haven't done logs or "e" yet. Is there any other way arrive at an answer without knowing these? I really appreciate your help.

I do not have the answer, but putting people in confined spaces with people that have commited crimes is not, and should not be believed to be the most effective way of halting a disturbed pattern of social behaviour. A more ameniable and effective aproac...

My last posting may was not succinct but it may give a gemeral idea. I was a Royal Marine,years ago, and that does hold some relevance. Uncontroled agresion is such a destructive quality, but you must not ignore the fact that when given access to training...

oops 1 over cos A

well what the heck is the question!?

The easiest fusion reaction to initiate is 2-1H + 3-1H------> 4-2He + 1-0 n Sorry for the mistake

How would I calculate the energy released per mole of He?

Thank you very much DrBob222 and bobpursley

is this for mastering chemistry?? because im looking for the same thing. idk even kno where to start.

sorry huge typo How do i calculate the pH when 200ml of .200M HCl is added to 200.0 ml of .4998M of sodium acetate?

161 divided by 48% = 335. 335 x 48% = 160.8. Round up to 161.

Yes, I meant to right -->...I apologize for typing the question incorrectly.

My answers 1.b 2.c 3.a 4.a 5.d 6.b 7.c 8.b 9.a 10.d 11.b 12.c 13.d 14.b 15.a 16. he doesnt have enough 17. he likes 18. it hurts him 19. he forgot 20. his turn I find the matching pretty easy but the questions and answer part is difficult.

lim as x approaches 5 (2e^(x-5))-2/x-4

Nevermind, it's just 8% of earth's radius.

Which of the following is NOT a physical property that a scientist might use to describe gold? A. Yellowish color B. shiny metallic luster C. Dense D. Valuable

Ok..I am not sure how to solve for t?

40 x .7 = 28 sq root of 28 is 5.291502622 multipy that by 5.5 = 29.10326442mph

1.in 2.above 3.past 4.over 1.in 2.across 3.outside 4.over

Primary Package Density

Thank you for such a quick reply. I revised the paragraph. Im I correct is saying simple present tense and present tense is the same? Our education plays (simple present tense) a significant role in our future financial planning. I have taken (present per...

Thanks for pointing that out. somehow I overlooked that... thank you for the reply as well!!

Thanks a lot for your help, drwls. I just have one more problem. Why did you substitute (2*10-7) for μ. I thought μ= (4pi*10-7). If I substitute(4pi*10-7), my answer come out correct. Did you mean to cancel the 2pi in the numerator and denominator. Could...

Answer those questions. Please and thank you.

Nope this is not for a chapter or a course review. It's some questions for my 1,500 Essay. Can help me find some information at least. Don't have to answer it. Specifically for number 2 and 3

So the word Doesn't will constitute as an adverb or only if it was spelled out as does not? Thanks for the pervious reply!!!

Thank you Writeacher although I am not writing it, I am only finding the adverbs in the paragraph in its current form.

You guys are great!!! Thank you for the insight!!!!!

S104! Love to help, but it would be cheating. Do hope you didn't use your real name on this.

Thank you... It is funny you mentioned the 2nd person as I read it after I posted, I thought the same thing and was correcting that as I waited on a reply. I never gave thought about the redundant issue. Now I am thinking about a better closing. Thanks ag...

Thank you very much. Believe it or not I didn't commit plagiarism in the body. I am not the best when it relates to expressing my thoughts on paper. I hope it gets easier as time progresses. Thank you again... I will work on the intro and exit and I will...

Yes, I will have a lot of research ahead of me, although I think it will be a fun exercise.

B) What is the power of the needed corrective lens?

Thank you for the feedback! could you you give some thoughts what direction I could take with the thesis statement? I too was thinking it was a little weak though was unsure what direction to take it. Thanks again!

Great... thanks for the insight. I have not got to the point of rewriting the sentences yet. However, when I do, I will be sure to post a couple to make sure I am on the right track.

nevermind, figured it out

No, the first term means 8 times the cos of x, and the second term means the cos of 8 times x.

I'm just not sure if I have to do the product of both Arcsin^4 (3x-1) and then do the quotient rule with sqr(3), or do it the way I just did, considering Arcsin^4 (3x-1) as one and do the quotient rule right away Thank you

thank you very much, I understand my mistake!

Thanks for deleting my post- I found out 'will sing' is the future tense. So A and C are wrong. Can't be D, because there are no object pronouns. It is B, because it has two pronouns - Conrad and his sister

I meant compound subject, sorry.

1/4x=1/4 1=(1/4)*4x 1/(1/4)=4x x=(1/(1/4))/4 x=(1/0.25)/4 x=4/4 x=1

What are the risks of using cell phones when driving?

so it's always a tan when it's 2 dimensions? Thank you very much

Take the information that you have been give a step at atime. 3 x 6 = 18 You divide the number by 2 to get this, so the number is 36. To confirm this take 3 x 3 (=9) from it and you will get 27. This is equal to 3 x 9. Hope that helps

it is down from horizontal drwls, Thank you for your time

the angle is at the top left corner of the first block

I think it is he hit the ball well because it describes how he hit it I think really quickly because it describes how he raised the glove

@Jay: it is genetic... liturgy

it marked me wrong for this

I'm a little lost. How is wt = arctan(wt) = 0.565 rad & sin(wt) = 0.535 rad?

Answer is .3525 grams?? Thanks

Does anyone know how to do this?

How do you solve for x with the equation 1.8 = x^2 / .0964 - x? i don't understand what to do isolate x

Thank you DrBob

Thank you so much. So you are saying its D right.

attempt an insight into- two of the most popular techniques of calculating or evaluating the profitability of a project, which are the internal rate of return (IRR) or its modified internal rate of return (MIRR).

Is that factorization?

Each double slit is in itself a single slit. That's why you see a "modulating" single slit pattern over the double slit pattern

Its harder finding it in a link is it fine if someone can just give me an ide

Thanks! What about this question: When parents modify their child-rearing expectations according to their offspring's temperamental style, the result is a more harmonious "fit" between them? I would say this is "false" because it wouldn't benefit anyone i...

9.8 meters per sec squared.

They made a perfect pear.