Monique

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

Questions

The following questions were asked by visitors named Monique.

A trolley of mass 2kg accerates from rest across a rough surface at 2,5m.s.It experiences a frictional force of 3N.Calculate the velocity of trolley after 4s and the distance travelled by the trolley in 4s

I'm doing a worksheet on the physical features of the former Soviet Union. There are some physical feature names I'm not sure about, which are some of the mountain ranges and rivers of the former Soviet Union. I've looked in atlases and my textbook, but t...

I need some help finding the kinds of rocks and trees in Australia. The catch is, they have to be useful in making a house and tools. No modern technology is going to be used, so it's like starting from scratch. Any websites that can help? Thanks much. Ch...

When a teacher wants you to do a reserch paper on the literary reflections of something, what does that mean? I am not certain what the teacher has in mind. When one looks into a mirror, one sees not the actual object, but rather an image. The image is un...

Imagine you are the office manager for a medical practice and have recently attended a conference where you learned about active listening and its benefits. You want to share the information with your practice’s staff.

A thin lead apron is used in dental offices to protect patients from harmful X rays. If the sheet measures 75.0 cm by 55.0 cm by 0.10 cm, and the density of lead is 11.3 g/ cm, what is the mass of the apron in grams?

What would increase the pressure inside a tank of helium gas?

Describe how each of the following nation was drawn in the assassinated of Ferdinand, Germany, Russia, France and Britain.

If the specific gravity of E85 gasohol is 0.801' what is the mass of 1.00 gallon of th E85 fuel. Given 1 gallon = 3.75 liters

I'm doing a report on the red panda, and I have to explain why the organism is classified in that group. The red panda's species is fulgens, but I'm not sure how to explain why its species is fulgens. Also, are there any other organisms in the Genus Ailur...

For all real numbers, f(x)=(x^2+1)/2. If f(a)=25 and f(11)=b, what could be the value of b-a? I'm confused on how you do these problems. Can someone show me how to do them? Thanks much!

The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution. The mean number of passengers per cruise is 1,820 and the standard deviation is 120. a. What percent of the cruises will have betw...

A survey of undergraduate students in the School of Business at Northern University revealed the following regarding the gender and majors of the students: Major Gender Accounting Management Finance Total Male 100 150 50 300 Female 100 50 50 200 Total 200...

Research at the University of Toledo indicates that 50 percent of the students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed their major area o...

The estimate of the population proportion is to be within plus or minus .10, with a 99 percent level of confidence. The best estimate of the population proportion is .45. How large a sample is required?

What was the real significance of the Mempa case? What is the difference between a suspended sentence and probation?

was Rupert's Land named after King Rupert?

Actually calculate the final amount on $1000 compounded annually at 6% per year for 4 years.

When attempting to solve a gravitational potential energy equation, is the free-fall acceleration always 9.8m/s2?

A piece of metal 3 7/8 inches long is to be cute from a longer piece of 5 1/16 inches.What will be the length of the remaining piece?

Using the TI-89 Titanium calculator: Find the largest and smallest values of each of the following functions on their given intervals. (I'll show you one) f(x) = 2^x + x^2 [-4, 1] I put in the function on the Y= screen as shown, then -4 < x < 1 (it's actu...

Are these quotes primary sources?Why? It give me pleasure to announce...that the...removal of the Indians...is approaching to a happy end...We could not wish to see this continent restored to the conditions in which it was found by our forefathers.What go...

An open box is to be made from cutting squares of side "s" from each corner of a piece of cardboard 25" by 30". Write an expression for the volume, V, of the box in terms of s. -I have no idea where to start on this. I know V=lwh (length*width*height), bu...

How do find the inverse function for this problem: f(x) = -(x+3)^2, x is greater or less than 3 I know the first thing you do is switch the variables, so it looks like this: x = -(y+3)^2 Then expand: x = -y^2-6y-9 And solve for y: x + 9 = -y^2-6y I get a...

An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the compound was burned, it produced .138g of CO2 and .0566g of H2O. All the Nitrogen in a different .200g sample of the compound w...

Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor? Baseball. Ocean liner. Both the same. Can't say without more information. 2 . A truck moves with a certain momentum. If both its speed and its mass are doubled, how much g...

A child riding a bicycle has a total mass of 40kg. The child approaches the top of a hill that is 10m high and 100m long at 5m/s. If the force of friction between the bicycle and the hill is 20N, what is the child's velocity at the bottom of the hill? (As...

What impact did Martin Luther and John Calvin have upon the perceptions and events of the Old World?

Could you please give an example of a topic sentence?

I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer I chose) In the United States, early warning systems h...

[THESE QUESTIONS ARE NOT THE SAME AS MY PREVIOUS POST) I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer...

How has media convergence changed American culture?

What are the atomic number (z) mass number (a) and symbols of the carbon isotope with 7 neutrons. What is and how do I get the mass number?

maximize Z = 30x+50y subject to 2x+4y=100 and x+5y=80

Three identical stars of mass M form an equilateral triangle that rotates around the triangle's center as the stars move in a common circle about that center. The triangle has edge length L. What is the speed of the stars?

Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner? why or how based on Ellis and Larsen-Freeman(2009) and Eskilsden(2008) all make the case that second language learning emerges from usage, from a learn...

Give two different kinds of specific examples of transfer from an L1 to and L2? A particular grammar construction, a particular pronunciation, and a particular word meaning

Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

A 50g sample of metal was heated to 100 degrees Celsius and then dropped into a beaker containing 50g of water at 25 degrees Celsius. If the specific heat of the metal is .25 cal/g degrees Celsius, what is the final temperature of the water? A. 27 B. 40 C...

An irregular shaped stone was lowered intro a graduated cylinder holding a volume of water equal to 2.0 ml. The height of the water rose to 7.0 ml. If the mass of the stone was 25 g, what was the density

Silver has a density of 10.5 g/cm3 and gold has a density of 19.3 g/cm3. Which would have a greater mass, 5 cm3 of silver or 5 cm3 of gold

When a boxer is knocked out, it is believed that his _____ has been affected.

Rip Van Winkle was a man who slept 20 years Upon autopsy, it was found that there was structual damage to his?

When a boxer has been knocked out what part of his brain has been affected?

I don't understand what valence electrons and core electrons are. Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and 4p4 valence electrons and the rest core

Chris works an electrician with the Central Electric Company. He earns $16.25 per hour with time and a half after 40 hours. If he works 43 hours Monday through Friday, how much will he earn?

Write the Lewis structure for each ion Al3+ Mg3+ Se2- N3- My question is why does Se2- get a bracket and 8 dots. And the same for N3-. I hope I'm making sense.

A car covers 2924 km in 43 hrs. What is it's speed

Sorry if you spend $4 every 7 mins, in 9 days you'll spend how much

A 1.250 g sample of copper wire was heated in air and reacted with oxygen to give 1.565 g of copper oxide product. Calculate the empirical formula of the copper oxide. Please help I'm lost. I need step by step Please and thank you

Very confused! Converting between grams of a compound and grams of a constituent element Determine the mass of oxygen in a 5.8 g of NaHCO3 5.8 g NaCHO3 * 1 mol NaCHO3/ 84.01 NaCHO3 * 48.00 mol O / 1 mol NaCHO3 * 16.00 g O/ 1 mol = I got 53 but the answer...

How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute. This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am I right

Ok I'm given 38.5 mg as mass. I have to find moles and number of atoms. Am I also converting mg to g? If so please help

Confused again ok I have to find the number of atoms in carbon with a mass of 13.5. So this is what I didi. 13.5 / 12.01* 6.022 *10^23= 6.77x10^23 but the correct answer is 6.74x10^23 what have I done wrong

Ok I think I'm gettingvit I hope, I need to check my work. Given 0.0449 mols Pt Find mass 0.0449 mol Pt x 195.08/1 =8.76g Pt Am I right

Given 2.05 mol Hg find mass Hg 2.05 mol Hg x 200.59g Hg / 1 mol Hg =411g Hg My question is would my answer be wrong if I put it in scientific notation 4.11E2

Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron. Fe2O3 I really can't figure this one out please help step by step

Calculate the empirical formula for the compound 1.245g Ni, 5.381g I Can you help with the steps please

Caffeine a stimulant found in coffee has the mass composition of C, 49.48%, H, 5.19%, N, 28.85%, O 16.48%. The molar mass of caffeine is 194.19g/mol. Find the molecular formula for caffeine.

Iron is found in Earths crust as several different iron compounds. Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron. Fe2O3 Please help step by step

What is the formula mass for (NH4)3PO4

What is the percent zinc in Zn(NO)3 2xZn/189.41]=34.52% am I right

Calculate the number of molecules in 3.11mol of CCL4 this is what I'm doing I got the molecular weight of CCL4 which is 181.88 Then I set it up like this 3.11 mol CCL4/ 181.88 mol CCL4 x 6.022E23 = 1.03E22 Am I right

How many CO2 molecules can be made with 0.500 mol of oxygen atoms?

Calculate the number of molecules in 3.11 mol of CCL4 I got 2.88E26 am I correct

When the following equation is balanced with the smallest integral coefficients, the coefficient of the HNO3 is Li2CO3(s) +HNO3(aq) -- LiNO3(aq)+H2O(l)+CO2

Four couples have purchased ticket to the school play. Their sear are next to one another in a single row. If each couple sits side by side, how many seating arrangements are possible? (I came up with 24. correct??)

Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help with setting this up

C4H10O(l) + O2(g) --- CO(g) + H2O(g) When I balanced it I got this C4H10O(I) + 4O2(g) --- 4CO(g) + 5H2O Am I correct

What is the net ionic equation for the reaction Cu(s) + 2 Ag (NO3)2(aq) --- Cu(NO3)2(aq) + 2AG(s)

I have to put the correct complete and balanced equation for Li(s) + N2(g) Li(s) +N2(g) --- LiNi2(s) I think I'm correct what do you think

Li(s) + N2 6Li(s) + N2 ==> 2 Li3N Li =6. Li =6 N= 2. N =2 Am I correct now

What is the mass of 0.0065 mole of ruthenium 6.5 mol Ru x101.07g Ru/1mol Ru = 0.656g Ru Or is it 0.66g Ru

Calculate the number of moles in 22.6 g C3H7OH 22.6g C3H7OH x 1 moL C3H7OH /60.11g C3H7OH = 0.375 molC3H7OH Am I right

I need help balancing this problem HClO3(aq excess) + CaCO3 I got to HCO3 + CaCiO3

Is it true that Na+ and K+ are always spectator ions in reactions that involve sodium and potassium compounds

For each precipitation reaction, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of the second reactant. 2KI(aq) + Pb(NO3)2(aq)--->PbI2(s) + 2KNO3(aq) Not looking for the answer I really want to know if I did i...

Find the limiting reactant for the initial quantities of reactants 2k(s) + Cl2(g)--> 2KCl(s) 1.8 mol K; 1 mol Cl2 I'm lost

Consider the reaction between reactants S & O2 2S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9 mol O2, how many moles of S, O2 and SO3 will be in the reaction vessel once the reactants have reached as much as possible? A...

Consider the reaction between reactants S & O2 2S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9 mol O2, how many moles of S, O2 and SO3 will be in the reaction vessel once the reactants have reached as much as possible? A...

So I have this question it reads Consider the generic chemical reaction How many moles of B are required to completely react with 2A + 3B ==> 3C 1. 6 mol of A 2. 2 mol of A I won't put them all just guide me in the right direction please

A thief uses a bag of sand to replace a gold statue that sits on a weight sensitive alarmed pedestal. The bag of sand and the statue have exactly the same volume 1.75 L. Assume that the mass of the bag is negligible. A) calculate the mass. ( density of go...

Convert a pressure of 23.8 in. Hg into kilopascal. Ok so I looked up kilopascal and it Said 1 Kpa = 1000 pa So I began to set it up like this 23.8 / 29.2 x1000 am I correct

Answers

The following answers were posted by visitors named Monique.

Ok, so f(25)=(25^2+1)/2. 626/2=313. So, a=313. When substituted, 61-313 is -252. There's a small issue though. This question is multiple, and I don't see a -252 as one of the choices: a. -14 b. 36 c. 68 d. 77 e. 86 Did I do something wrong?

Future Value if you deposit 10,000 in a bank account that pays 10 percent interest annually, how much would be in your account after 5 years?

What is the equivalent of half an inch to metres?

So 1 3/16?But how did you change th 5 1/16 to 4 17/16?

Oh,so they are primary sources.Thanks for the info I get it now :).

oh, i also meant that x is greater than or equal to 3. sorry.

Yes! Thank you so much! I realized that you had to put gravity in but I couldn't figure out where. Thanks again!

maximize Z = 30x+50y subject to 2x+4y=100 and x+5y=80

When I worked the question I got cu = 0.0196 and o= 0.0196 so the empirical formula is CUO

Ok what I did wrong was say 48 O atoms instead of just 3. Thank you very much

Ok thank you very much

I figured it out yay

I got that as well but then I took the molar mass and divided by the empirical formula and got C8H10N4O2

So this is what I did 1E6kg x 1 mole Fe/55.85g= 17905 moles Fe 17905 mole Fe x 1 mol Fe2o3/2mol Fe *159.70g/1moleFe2O3* 1kg/1000= 1429kg

I did Zn(2)=65.39 then I divided that by the amu of Zn(NO3)2 x 100 is that right

I don't understand how to work this problem can you help

is that with the requirement that each couple sit side by side?

why adding 1=I Rather then 1-i

I don't want the answer. Do I have to account for the molar mass of CO2 and O2.

got it. Thanks so much.

Li(s) + N2 6Li(s) + N2 ==> 2 Li3N Li =6. Li =6 N= 2. N =2

What does it mean by aq excess and is this something I need to pay attention to. Does it help me balance the equation

I think I got it 6 mol A / 2 mol A x3 mol B = 9 mol B

DrBob222 I used 29.2 in Hg because my book gave me 1 atm = 29.92 in. Hg. But why did you use 1atm/760mm

Ahhhhh thank you!!!!! I was so frustrated

where did you get the 96.2

DrBob222 I think Im doing something wrong. When I worked this problem out I came up with the right answer but wrong units. 0.112L KOH x 0.100molKOH/LKOH x 1mol H3PO4/3 mol KOH x 0.01 L H3PO4/1 mol H3PO4 = 0.373 L H3PO4

i think this is because water always has some ions in it. am i right

I got - log (0.0045) = 4.75

DrBob is the HCOOH---->H^++HCOO^ the HCHO2

Ok DrBob I think I got it after all the plugging in my final answer is 5.45 I hope

So is it a problem if the conch of NH4NO3 was not given to me. Or do I just assume it's the same as the NH3

pH = pKa + log ([A-]/[HA]) pH = pKa + log ([C2H3O2-] / [HC2H3O2]) pH = -log (1.8 x 10-5) + log (0.50 M / 0.20 M) pH = -log (1.8 x 10-5) + log (2.5) pH = 4.7 + 0.40 pH = 5.1 I used this example And I still got it wrong it should have been 4.75 + 0.12 = 4.8...

No I'm sorry I just used this as the example of the H H equation

This what I did log(1.76 x 10-5) +log(0.150/0.200) = 4.879

DrBob I want to thank you SOOOOO much for all the help you give. I had never heard of the H H equation. And I also appreciate you patience

I'm stuck Ka=1.84 x 10-4= x x/ 0.125 (1.84 x 10-4)[0.125] 2.3 x 10-5= x = [H30] lost which way do I go

Don't think I know how to calculate the M of NH4NO3

Second thought I just don't understand what to do. pH= pKa + log [NH3]/[NH4NO3] pH= -l log ? + log (0.005/?) pH= ? pH= ?

ok DrBob the answer i got was 2.7 x10-5 am i correct

I can see that now thank you very much

O# of Cr(OH)4- How did you get +3

What is the best approach for marketing services such as a City's best features to attract tourism?

Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.

2 paragraph essay..What comes to mind when you think of needing more time? Some examples might be studying, family, exercise, relaxation, a hobby, or building your business

In front of the letter n there is actually the pie sign

Answer 9+1=10, 10+6=16 16-9? [ [ 6 10 ( 10+6=16) then you cross out the 0 to make the 1 then what is left is 9 (9+1=10)

How to find the n

It is A I just took the test your welcome😀

Use the excerpt to answer the question. Which sentence best describes how Tolstoy uses dialogue in this passage? A. Tolstoy uses dialogue frequently to develop character. B. Tolstoy uses dialogue evenly to balance the narration. C. Tolstoy uses dialogue f...

I think you are of no help to me

Which sentence best describes how Tolstoy uses dialogue in this passage? A. Tolstoy uses dialogue frequently to develop character. B. Tolstoy uses dialogue evenly to balance the narration. C. Tolstoy uses dialogue frequently to convey strong emotion. D. T...

I see. Thank you for this information.