S

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

Questions

The following questions were asked by visitors named S.

R wants to round 47 to the nearest ten. Which halfway number can help him? 45, because it is halfway b/w 40 & 50 or 50, because it is halfway b/w 0 & 100?

1.how do you calculate the specific heat of a metallic element if 314 joules of energy are needed to raise the temperature of a 50.0 g sample from 25.0 degrees c to 50.0 degrees c. 2. how do you propose a method for determining the specific heat for a met...

can someone explain to me how to answer this: Polycarbonate plastic has a density of 1.2 g/c3. A photo frame is constructed from two 3.0 mm sheets of polycarbonate. Each sheet measures 28 cm by 22cm.What is the mass of the photo frame?

if aluminum chloride is mixed in with hydrochloric acid, how can you recover it?

i have a lab to do on spectrophotometry and im supposed to graph all these numbers and i really have no clue what to do. can anyone help me???

Which of of the following is a correct example of the plural possessive case? 1) stone's throw 2) men's plan 3) it's place 4) woman's plan

Which one of the following is a correct example of the singular possessive case? 1) women's club 2) audiences' reaction 3) who's job 4) king's rights

Which sentence below contains a correctly used modifier? a) He spoke "sharply" to his sister. b) I feel "goodly" now that I'm over the flu. c) The sauce tasted "bitterly", and I couldn't swallow it. d) Joe looked "sad" at his broken bike. Appreciate the h...

For the system 2SO2(g) + O2(g) <--> 2SO3 (g), change in enthalpy is negative for the production of SO3. At a particular temperature, 8.00 moles of sulfur dioxide and 10.00 moles of sulfur trioxide are introduced into a 2.00 L container. The system is allo...

If you dive to 50 m below the surface of a lake, a) what is the pressure due to the water alone? b)What is the total or absolute pressure at that depth?

the monroe doctrine was named after president monroe? true or false ,false right!

which of the following could reduce your cholesterol?A.cheese, B.fatty foods, C.cakes,pies, D. a low-fat diet.is D the correct answer.

which type of exercise is weight lifting? A.aerobic, B.yoga, C.boxing, D.kicking. A is the answer right!

the plan for governing the nation is the united state contract? true or false, false its the constitution right

each state sends a different number of representatives to the house of representatives,depending on the population of the state? true or false, i think it's true

the united state superior court is the nation's most powerful court? true or false, false right

at any giving time,if the demand for a product is greater than the supply available,the price will be higher? true or false , true right.

an entrepreneur could go to investors or a bank to get the capital for a new business? true or false , true right

corrections please!! gliding , hungrier, believe, receipt, noticeable, poisonous, postdate, neighbors, cities, knives.

"Votez Sean pour president" is that an okay way of saying "Vote for Sean for president? thanks

I have to write a simple Latin poem by tomorrow; we can literally write anything. Does anyone know any good websites for inspiration?? or want to tell me a poem in latin i could use.

i'm stuck on an essay can you help: "How does Shakespeare make Act3 Scene4 so dramatic?"

Hello, Does this sentence make sense? If not, can you please provide suggestions on what I could write in place of? I need a sentence that is strong to reflect my desire to enter the business workforce. I find myself driven, as I expect to demonstrate my...

Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved?

which property are these two question (18+3)+14=18+(3+14) and (17-7).12=17.(7.12)

In ABC, mB > mC and mC > mA. Which side of ABC is longest? A. AB B. AC C. BC

Two triangles are similar. The measure of the shortest side of the first triangle is 12 and the measure of the shortest side of the second triangle is 5. If the longest side of the first triangle measures 15, what is the measure of the longest side of the...

Two parallel lines cut by a transversal can create all the following types of angles except A. Alternate interior angles B. Alternate exterior angles C. Corresponding angles D. Complementary angles

In ΔABC, m∠C = 118 and m∠B = 44. Which is the shortest side of the triangle A. AB B. BC C. AC

I just need a quick check before I hand in my work if you would...Thanks. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6, 4)…Is this correct? 2...

Perform the indicated operations an write the result in standard form. (9+5i)(6-4i)

The United States, Canada, Australia, New Zealand, Japan, and the countries of Western Europe are examples of ____ countries.

What is the expression and numerical value for the equilibrium constant for the following: Ag+ + Cl- = AgCl(s) using the Ksp= 1.8*10^-10 of AgCl please show how its calculated.

if the industrial revolution increased production why did the laborers need to work such long hours weren't they producing more than before?

I need help understanding the following passage: “Could we suppose two distinct incommunicable consciousnesses acting in the same body, the one constantly by day, the other by night; and, on the other side, the same consciousness, acting by intervals, in...

To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C?

Locke says, "nor is it at all material to say that this same and this distinct consciousness, in the cases above mentioned, is owing to the same and distinct material substances or no" Locke was talking about consciousness defining who we are. I would thi...

what is the immaterial spirit?

Locke says, “Make these intervals of memory and forgetfulness to take their turns regularly by day and by night, and you have two persons with the same immaterial spirit, as much as in the former instance two persons with the same body.” I am having troub...

Melissa collected 3 kinds of leaves when she was out walking--- elm, maple, and oak. She has 2xs as many maple leaves as elm leaves and 5xs as many oak leaves as elm leaves. Altogether, she has 32 leaves. How many of each kind does she have?

What are some similes in The Odyssey? (lattimore translation)?

I am doing an essay on Aristophanes Clouds and The Trial and Death of Socrates by Plato. I am trying to find differences in the types of education Socrates provides? I am unclear whether he actually charges a fee in Plato ( it seems that he doesn't) ? It...

I need help writing an intro and conclusion for an essay. The thesis is : Socrates is depicted differently in Plato's dialogue and Aristophanes' Clouds in terms of the education he provides and his beliefs. I already wrote most of the middle, and am havin...

can i say that Sorates head is in the clouds when he is portrayed up in the clouds in Aristophanes comedy clouds

I need help balancing equations 1) CH4+O2-->CO2-->+H2O 2) Hf+N2-->Hf3N4 3) Mg+H2SO4-->MgSO4+H2 4) C2H6+O2 -->CO2+H2O 5) Pb(NO3)2 + NaI--> PbI2+NaNO3 6) Fe+O2-->Fe3O4

the symbol % represents percent or percentage true or false

percent means hundredth true or false?

What are the different forms of social media that exists today?

Some heat is supplied to a mixture of ice and liquid water in a closed container and the contents of the container are thoroughly mixed. If, after the addition of heat, both ice and liquid water remain: A) the temperature of the system will increase B) th...

STATE THE SLOPE AND Y-INTERCEPT OF THE EQUATION 5X-2Y=-10

What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the improtance of theat distinction.

Which if these questions does not help to assess the vaildity of research findings: a. How much did this study cost? b. Are the results presented fairly? c. What was the purpose of te research? d. How well was the study conducted?

how much heat energy would it take change the temperature of 50 mL of water from 23 C to 28 C?

If I have 10 silver coins and they weigh 55 grams and displace water from 25 mL to 35 mL, what is the density? What is the specific gravity?

If the line 3x-4y = 0 is tangent in the first quadrant to the curve y = x^3 + k, then k is

A student mixed 15.0 mL of a solution of 0.0200 M ferric chloride FeCl3, with 25.0 mL of water. Calculate the moles of iron ion, Fe +3 in the resulting solution. (I think this is a Dilution problem, but I wasn't really sure how to start it out. Any help w...

An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the molality, mole fraction, and molarity of NH4Cl in the solution. I know the formulas needed but I'm not sure where to start. M = moles s...

Is (NH4)2 CO3 ionic or covalent?

A detergent solution has a pH of 11.63 at 25°C. What is the hydroxide-ion [OH-] concentration?

I need figurative language on the genre fantasy

A skier leaves the end of a horizontal ski jump at 22.0 m/s and falls 3.20 m before landing. Neglecting friction, how far horizontally does the skier travel in the air before landing?

how do you solve xp-yp=z

Choose an ecosystem to research with regard to abiotic factors and how organisms in that particular ecosystem depend on those abiotic factors. Write a paragraph that describes the ecosystem that you selected and how organisms compete for abiotic factors w...

Which West African kingdom was the first to benefit from the gold and salt trade? Ghana Songhai Mali Morocco My answer is Ghana.

At what point of a plot does the action wind down to reveal the effects of the action or decision? climax exposition falling action resolution Read the following passage from “The Oxcart”: The governor of Settsu had three outstanding samurai in his servic...

Assuming evey year is 365 days, and that you were counting one dollar each second,how long would it take to count 3.803 trillion dollars? Write your answers as years+days,rounded to the nearest day

Lead has a density of 11300 kg/m^3 at 0 degrees celcius. What is the density of lead at 90 degrees celcius?

How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg of ice at -20 deg C, assuming all energy is absorbed by the ice?

Consider a piece of metal that is at 5 deg C. If it is heated until it has twice the internal energy, its temperature will be. a)556 deg C b)283 deg C c)273 deg C d)278 deg C e)10 deg C

A monatomic ideal gas expands from 1.00m^3 to 2.50m^3 st a constant pressure of 2.00x10^5 Pa. Find the change in the internal energy of the gas.

I need a few suggestions of store names. Its a grocery store in Manhattan. Thx

Is it possible if you can shorten the text: Perindnes Tree, its sweet fruit throughout the tree is remarkably pleasing; a dove’s delight living in the tree. Living in India with rich and vibrant colors exotic, expressive, and aromatic; what could the dove...

can you shorten it now: Living in India with rich and vibrant colors exotic, expressive, and aromatic; what could the doves possibly live in fear with? Dragons are the doves enemies & fear the perindnes tree. The shadow of the tree was casted east, the dr...

A gas absorbs 25kj of heat and does 12kj of work calculate (triangle) E

Giselle has $5.90 dollars in quarters and nickles. If Giselle has 16 more nickles than quarters, how many quarters does Giselle have?

Use the given plan to write a two-column proof of the Symmetric Property of Congruence. Given: segment AB ≅ segment EF Prove: segment EF ≅ segment AB Plan: Use the definition of congruent segments to write segment AB ≅ segment EF as a statement of equalit...

Solve the system by substitution or elimination. x^2 + 2y^2 = 8 x^2 - y^2 = 1

Convert the concentration of CoCl2 from 22.0 mg/mL into molarity.

Prove: sin2x*sinx/2cosx + cos^2 0 = 1

BSA stock solution A has a concentration of 3.50 mg/mL. 1.00mL of stock solution A is diluted to a final volume of 5.00mL to prepare solution B. 1.00mL of stock solution B is diluted to a final volume of 5.00mL to prepare solution C. 1.00mL of stock solut...

A protein sample is diluted 5-fold before measuring the protein concentration in a protein assay. In the protein assay, the concentration of the diluted protein is determined to be 0.27 mg/mL. What is the concentration of the original protein sample?

*Trying to laugh as quietly as possible*, Lucas snuck out of the kitchen. A. Prepositional phrase B. Gerund phrase C. Participial phrase D. Appositive phrase Hello I was wondering if my answer is correct for this question, the answer I choose was C. Thank...

What is the domain of f(x)= (x-3)/(x^2-9)? lim f(x) x->3

I'm writing an essay and need help coming up with economic reasons to to be against Caps on Punitive Damages. Google is not turning up what I need. I need how will implementing this program be bad economically?

a glass lens has a convex surface with a radius 25.0 cm and a concave surface with radius 50.0 cm with the glass refraction = 1.51 calculate the focal length

A rectangular rug has a base b and a height h, with a perimeter of 30 feet. Both b and h are both whole numbers between 5 and 10 feet. Fill in the blanks to complete this sentence: The area of the rug is at least _______ but not greater than ______.

1. What is the Right Riemann Sum for f(x)=x−3 over the interval [8,11], with n=3 rectangles of equal width? 2. What is the right Riemann sum of f(x)=x+3 when using 3 rectangles in the range [−3,−1]? 3. What is the left Riemann sum of f(x)=−2x+1 when using...

Benzene sulfonic acid, C6H5SO3H, is a strong acid and will neutralise sodium hydroxide solution (a 1:1 molar ratio). Benzene sulfonic acid crystals (y grams) were weighed into a titration flask and titrated against sodium hydroxide solution (1.0 M) and ne...

In a random sample of students at a middle school, 24 wanted to change the mascot, and 30 wanted to keep the current mascot. Which is the best prediction for how many of the total of 1,140 students want to keep the current mascot? (a) 507 (b) 600 (c) 633...

4t-3s^2+s^3 for t=-2 and s=-3 4(-2)-3(-3)^2+(-3)^3 -8-3(-9)+(-27) -8-(-27)+(-27)=-8 Am I right?

If 309 J of heat are removed from 10.0 g of ice (specific heat = 2.06 J/g ºC) at -5.5 ºC, what is the final temperature of the ice sample?

The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Distance on the surface of the ocean is sometimes measured in nautical miles (1 nautical mile = 6076 feet). The water beneath a surface rectangle 3.70 nautical miles by 2.80 naut...

A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t = 0 s. Approximately how long does it take the tennis ball to reach its maximum height?

solve: cot(2theta/3)= -sqrt3 Please help, I don't know how to start and how to set it up.

A 2.20-kg ball, moving to the right at a velocity of +1.27 m/s on a frictionless table, collides head-on with a stationary 7.20-kg ball. Find the final velocities of (a) the 2.20-kg ball and of (b) the 7.20-kg ball if the collision is elastic. (c) Find th...

A ball is dropped from rest at the top of a 5.89-m-tall building, falls straight downward, collides inelastically with the ground, and bounces back. The ball loses 5.34% of its kinetic energy every time it collides with the ground. How many bounces can th...

Curve A is banked at 11.2 °, and curve B is banked at an angle of 15.2 °. A car can travel around curve A without relying on friction at a speed of 14.5 m/s. At what speed can this car travel around curve B without relying on friction? Do I need to find r...

Suppose the surface (radius = r) of a cylindrical space station is rotating at 29.1 m/s to provide artificial gravity. What must be the value of r for the astronauts to weigh 1/3 of their earth weight? Don't know how to start please help.

The drawing shows a 156-kg crate hanging from the end of a steel bar (S = 8.1 x 1010 N/m2). The length of the bar is 0.117 m, and its cross-sectional area is 7.44 x 10-4 m2. Neglect the weight of the bar itself and determine (a) the shear stress on the ba...

Answers

The following answers were posted by visitors named S.

i have %composition and absorbance.

the numbers vary a lot. like some of the numbers are .004 and some are 1999. how would you graph that big of a difference?? and it asks questions like at what wavelength was the absorbance the greatest but for the color red i recorded the absorbance to be...

since there are 10.00 moles of sulfur trioxide, shouldn't the initial concentration of SO3 = 5.00 M? (you have it posted as O2 = 5.00 M) And for part b, I'm having problems on letter iii. I don't understand how the equilibrium constant would be affected b...

so since K= products/reactants, K will get smaller?

I definitely understand this concept better now. Thank you so much for your help!

The answer is c) ns^2 np^5 I know this because in addition to the explanations posted, above I just did this for my chemistry homework. I'm guessing you also have Mastering Chemistry?

which type of exercise is weight lifting? A.aerobic, B.yoga, C.boxing, D.kicking. A is the answer right!

The information pertaining to this question is undoubtedly in your text.

Perhaps the business that I will work for in the future...

I think that the similarities in rational expressions and fractions are very similar in functions. The need to utilize common denominator and find the LCD is relatively the same. The factoring process between the two is similar, but the difference is in t...

Yeah , like how do you answer the third question . I don't get it .

how many grams of KCl must be used to prepare 400g of 5.00wt%solution?

I hope you realize by doing this you are helping students taking online calculus cheat on their test, as this is direct content from the test under Unit 6 Activity 9.

Thank You I am still having writers block writing an intro and conclusion, any ideas of things I can put in would be appreciated.

I have written most of the paper. The thesis is Socrates is depicted differently in Plato's dialogue and Aristophanes' Clouds in terms of the education he provides and his beliefs.

i meant Socrates not Sorates, sorry.

821213 4243 __________ Place the numbers like this then solve 821213*3, then go on to the next line and place a 0 under the last number of your previous answer, then solve it for 821213*4, then under this add two 0s and solve it for the 2, then three 0s u...

asking about a halfway number is irrelavent?

2174111 KPa or 21.47 atm

is the answer 24?

Wouldn't I just leave the answer as 0.0003 moles since the question is asking for the amount of the moles of the iron ion Fe +3 ? :) That's when I got confused.

Thanks so much for your feedback! :)

Thanks so much for the feedback! I think I figured the answers out! :) Molarity = 0.161 M Molality = 1.74 m Mole Fraction = 1.57E-4 moles NH4Cl

Made a mistake. ****Mole Fraction = 0.0303 moles NH4CL

That's not true. 0 isn't equal to 16. & It isn't greater than 16.

3 ft = 1 yd So, 2355 ft/3ft = 785 yd

10 total marbles 3/10 red 1/9 white (since the marble isn't replaced) So, 3/10 x 1/9 = 1/30

10 total marbles 3/10 red 1/9 white (since the marble isn't replaced) So, 3/10 x 1/9 = 1/30

Is this the correct way to set it up & solve for the problem? [OH-] = 10^-11.63 [OH-] = 2.34E-12 I wasn't sure if it was the same set up as it is for the hydronium ion.

Okay, thanks so much for your help!! :)

Thank you for the answer! Cash should be (600*4)+11000 not "10,000" I got rent expense without dividing by the term, so that's the total off all payments considering the annual increase. Defferred Rent Expense = Rent expense - Cash

Sorry, for the mistake I made in the above post, here is the solution. Hope my calculation is correct but this is the right formula that needs to be used. The JE for 2013 mentioned above is correct; however for 2023 the JE should be: Dr. Rent Expense Dr....

Identify whether the italicized words in the sentences below are used as participles or verbs. She’s an EXPERIENCED chef; she should have no trouble finding work. participle or verb? I would say participle.

THANK U VERY MUCH ODESA...THAT WAS ACCURATE FORMULA..

She needs the polynomial... it isn't hard to figure out the 50%

Many gramatical errors.

for part 4 (rho_2*g*L^2)/(4*E_1)+(rho_2*g*L^2)/(8*E_2)

for problem 1,part 4 (rho_2*g*L^2)/(4*E_1)+(rho_2*g*L^2)/(8*E_2)

for problem 1,part 4 (rho_2*g*L^2)/(4*E_1)+(rho_2*g*L^2)/(8*E_2)

susie, is b correct?

I like cheese K K K L ☆*:.｡. o(≧▽≦)o .｡.:*☆

Thank you! I tried to solve it like this: x^2 + 2y^2 = 8 ( x^2 - y^2 = 1 )2 x^2 + 2y^2 = 8 2x^2 - 2y^2 = 2 3x^2 = 10 x^2 = 10/3 x = ±√(10/3) Any idea as to why my textbook would say that the solution is ±√(30/3)?

I figured it out. No fraction can appear under a radical.

Not 4; it is an independent variable. I think it is 5 and 6, as the plant that benefits more (either from vinegar or tap water) will have more germinated seeds and the length of the root will increase.

Should say absorbancy *, A, was plotted.. My phone autocorrected the word.

Thank you I also was wondering about my answer for this question. *Climbing so slowly they seem immobile* is how sloths spend their days. A. Prepositional Phrase B. Gerund Phrase C. Participial Phrase D. Appositive Phrase My answer is A. Am not sure if it...

Oh okay I get it now. Thank you. :)

I have checked some of these sites and while it gives me the pros and cons, I don't see a reason why or how implementing this program will affect us economically?

If r = 12.5 and s = |−13|, which of the following inequalities is not true? A) r ≠ s B) r < s C) r ≥ s D) r ≤ s

Rate= interest / principal*time interest = 15 Principal =100 Time is 2/52 (2 weeks/ 52 weeks/year) 15/(100*2/52)= 3.90 3.90*100 = 390%

Phil is right, the answer is B

Thank you Dr. Bob

thank you very much Damon. It is much clear now, since u explained it step by step.

Damon, I honestly want to thank you for your precious efforts in helping students. I have a question regarding the equations you've set above. Could you clarify how to find FB please?

and theta is between 0< theta< 2 pi

I figured this out.. So basically you find the acceleration first V-Vo/t= 59.4-0/14.1 = 4.21m/s2 then, you find the apparent weight by multiplying 66.7*(9.8 + 4.21)= 934.47N

sorry I solved part C, I need help with a and b pls.

ok I got the answer: a) Vf1=(m1-m2/m1+m2)*(Vi1) B) Vf2=[(2(m1)/m1+m2](Vi1)

As far as I know, Delta T means the difference in temperature. T final- T initial.

Thanks a lot Damon!

Thank you Don. A great way of clarifying through the steps, very detail oriented. Thanks again!

I was able to solve this problem at firs, use the equation V=sqrt(R g tan theta) since you have two angles you will need to separate the equation into 2 Va= sqrt(r g tan a theta) Vb= sqrt (r g tan b theta) then solve for Vb Vb/Va= sqrt(r g tanb )/ sqrt(r...

it is aggression, you can't kick others, take it from that principle.

Got it: reasoning and solution.. the normal force exerted by the wall on each astronaut is the centripetal force needed to keep him in the circular path so, Fc=mv^2/r. rearranging and letting Fc=(1/3)mg yields r=3v^2/g= 3(29.1m/s)^2/(9.8m/s^2)=259m

got it, a) the stress is F/A= mg/A = 156(9.8)/7.44*10^-4= 2.05*10^6 N/m^2 B) F=S(delta y/ Lo)A,, solve for delta y delta y= (F/A)*(Lo/S) the value of F/A was found in part a, so substitute the answer in the second equation. 2.05*10^6(0.117/8.1*10^10)=2.96...

7.5 is the answer it's 0.15*50 = 7.5

plus 30 is more than half which is 25 so disregard the other way.

sorry! wrong calculation.

x=4 gives inclination=k=1 in y=kx+m. It also states that m=4. y=x+4

273.15°K is 0°C. Go from there to 232°C and its where tin melts. Conversion from °C to °K °K = °C + 273.15

x=number of mystery books. 3x=total number of books on the shelf. x/5<10<x/4 is given. Get rid of the fifths and quarters by multiplying by 20. 4x<200<5x --> 40<x<50. The number of mystery books is anything between 40 and 50, multiply by 3 and you have yo...

The inverse of a 2x2 matrix is given by: A=[a b A^1=1/ad-bc[d -b c d]. -c a]. If these two multiplied by each other gives the "identity matrix": [1 0 0 1]. then the inverse exists.

2. mean 50, variance 25

Can someone answer this: 1) too high, B) too low or C) unaffected. In each case, explain how this result occurs a) after removing the flask from the water bath, the experimenter cools the flask to room temperature but does not dry it. The calculated molar...

This is just a question on my chem lab which is determining the molar mass of a volatile liquid. i don't understand how to answer this question, esp with the reasoning that has to be provided. help for this would greatly be appreciated!

(Ans. (a) ∆U = ∆H = 0; q = 1.57KJ, w = −1.57KJ, (b) ∆U = ∆H = 0; q = 1.13KJ, w = −1.13KJ, (c) ∆U = ∆H = 0; q = 0, w = 0.)

the ratio of the length to the width of a rectangular field is 3 to 2, if the field is 120 yards long, how wide is the field.

Nevermind, thanks for the help!

Anna is correct I got a 5/5

answers can be: 27.4, 13.2, 14.2, 11.42, 0.5 (all are N)

Yea they wrong very

so is it 196 or 191J?

Uh the answer is 48 for how many angelfish there are and the other answer is 36 for goldfish.