Questions Asked on
March 3, 2018

Chemistry
What is the total molar concentration of all the ions in 0.0200 M solutions of the following salts in water? 0.0200 M KCl 0.0200 M CuSO4 0.0200 M CaCl2
asked by Naomi 
physics
An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?
asked by a 
Chemistry
Lactic acid, a chemical responsible for muscle fatigue, is a monoprotic acid. When 0.578 g of lactic acid is titrated with 0.206 M NaOH, a volume of 31.11 mL of NaOH is used. What is the molar mass of lactic acid? HA + NaOH > NaA + H2O (also does the A
asked by Naomi 
Social Studies
Which of the following was among President Wilson’s Fourteen Points? A disarm all major powers B form a league of nations ** C create an alliance with Germany D make all European country learn their lesson What was the main purpose of President
asked by Cole 
New Mexico History
1. Based on the changes in New Mexico's population after World War II, which conclusion is supported? A.) Economic changes made new mexico a difficult place to make a living B.) New mexico climate was believed to be dangerous and unhealthy C.) people were
asked by Anonymous 
Math
There is 48 students in a class. 7 out of 8 are females what percent are females?
asked by Jesse 
Calculus
The total stopping distance T of a vehicle is shown below, where T is in feet and x is the speed in miles per hour. T = 2.5x + 0.5x^2 Approximate the change and percent change in total stopping distance as speed changes from x = 15 to x = 18 miles per
asked by A 
MATH
How many kilometers can a motorist travel from 8:55 AM to 10:10 PM at a rate of 60 km/hr?
asked by HANHAN 
Chemistry
A solution is created by dissolving 13.0 grams of ammonium chloride in enough water to make 265 mL of solution. How many moles of ammonium chloride are present in the resulting solution? When thinking about the amount of solute present in a solution,
asked by Onye 
math
the minute hand of a clock is 6cm long.how far does the end of the hand travel is 35minute
asked by Samuel 
Physics
a rocket of mass 1000kg containing a propellant gas of 3000kg is to be launched vertically. If the fuel is consumed at a steady rate of 60kg per seconds, calculate the least velocity of the exhaust gas if the rocket and content will just lift off the
asked by Michael 
math Question
classify the triangle by its angles and its sides. Explain how you knew which classifications to use. top of the triangle is 70 degrees, bottom right is 45 degrees and bottom left is 65.
asked by Anonymous 
Optics
A converging lens of focal length f1 = +22 .5cm is placed at a distance d = 60 .0cm to the left of a diverging lens of focal length f2 = −30.0cm. An object is placed on the common optical axis of the two lenses with its base 45.0cm to the left of the
asked by Anon 
geometry
Classify the triangle with angles with measures 48,62 and 70 as acute right or obtuse A acute B right C obtuse
asked by oof 
MATH  NEED HELP ASAP PLZ
Toshi works at a pet store. They sold 136 bags of dog food last month. To boost dog food sales, the store manager is going to give all the store clerks a bonus if they can increase dog food (bag) sales by 25% next month. How many bags of dog food do they
asked by Ryleigh 
geometry
name the angle that is supplementary to COB A.AOF B. COD C. BOF D. DOC
asked by oof 
physics/electrical circuits
A given wire has a resistance of 17.5 ohms. If its length is 560 m, how much length must be cutoff from the wire in order to reduce its resistance to 10 ohms?
asked by dumon 
Math
The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle.
asked by K 
ElA / Who Knows if The Moons
Which line from the poem best supports the idea that the moon might be a perfect place?
asked by Cheater 
Physics
If s=at^2+bt+c where is distance and is time, what will be the correct unit of a, b, and c
asked by Queen 
Algebra
a square painting is surrounded by a frame. the outside edges of the frame are x inches in length and the frame is 1 inch thick. what is the total area of the frame? A: 4x + 4**??** B: 4x  4 C: x^2 + 4x + 4 D: x^2  4x  4
asked by BemoGeno 
English
WILL GIVE BRAINLIEST 1. (Look) out of the window and tell me what you see. indicative imperative subjunctive 2. Yosemite National Park (is) a national treasure. indicative imperative subjunctive 3. If I (were) you, I’d hike up Bridal Veil Falls.
asked by MSTV 
Math
A soccer team played a total of 27 matches and the ratio wins to losses was 7:2. How many games did the team win and how many did it lose?
asked by Anonymous 
Math
There is a school that has 6,190 students there is already 216 how many more teachers are needed
asked by Jesse 
math
The state lottery (which has a 6% lottery tax) offers to pay winnings in 25 annual payments or one lump sum, sometimes called a cashout option. This week’s lottery has a jackpot of $30 million and a cashout value of $18.2 million. Granted that the odds
asked by sarah 
Maths
In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that OP=PQ=QB Many Thanks
asked by Peirs 
Chemistry
10. Write out the precipitation reaction formulas: NaOH(aq)+MgCl2(aq)> a. Complete ionic reaction: b. Net ionic reaction: c. Molecular reaction: *Please could some explain step by step why and how you solve this problem I do not understand at all . Thanks
asked by Naomi 
Lab Physic
If T=2π√L/8 Then given that L=100.0±0.1cm(limit standard errors) and T=2.01±0.01s(limit standard error) Calculate the value of g and its standard error. Pls I need answer to that
asked by Nomis 
Math
When a marathon runner completes 3 round around a circular track he covers a distance of 66 km.find the radius of track.
asked by Ujjwal gautam 
Chemistry
Calculate what Mass of CO2 is produced when 34.6g of C8H18 is burned in the air
asked by Maiboe 
american government
All of the following are modern polling methods except: a. pollster interviews b. mail questionnaires c. inperson interviews d. telephone interviews I can't find this answer anywhere in my textbook. Help!
asked by huncho jack 
Statistics
(GRAPH) Sketch a normal curve that has a mean of 15 and a standard deviation of 4. On the same xaxis, sketch another normal curve that has a mean of 25 and a standard deviation of 4. Describe the two normal curves.
asked by Sylvia 
physics
A 32 kg girl runs up a flight of stairs that is 30 m high. How much work does this require? Not sure how to even start
asked by si 
Physics
You are standing 7 feet from one speaker and 10 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is barely audible at your location, which of the following could be the wavelength of the sound? Choose
asked by Shae 
geometry
Which of the following of the complement and the supplement of an angle with a measure of 20˚
asked by oof 
Statistics
Find the area under the normal curve in each of the following cases. 1. Between z = 0 and z = 1.63 2. Between z = 1.56 and = 2.51 3. Between z = 0.76 and z =1.35 4. Between z= 0.26 and z = 1.76 5. To the left of z = 2.35 6 To the right of z = 1.31 7.
asked by Sylvia 
Chemistry
The half life of tritium is 12.3 yr. If 62.2mg of tritium is released from a nuclear power plant during the course of an accident, what mass of this nuclide will remain after 105 yr?
asked by TP 
HELP ME WITH MATH
find the value of x in the triangle  x \  \  \  \  \ _ 54 \ _________________________________\ A 126 B 234 C36 D144
asked by tengo 
physics/electrical circuits
a wire has a resistance of 1 ohm if the length is increased four times and the area is double the original, find the new resistance of the wire.
asked by dumon 
physics/electrical circuits
a heater wire length 50cm and a 1mm^2 in cross section carries a current of 2A when connected across a 2 V battery. what is the resistivity of the wire?
asked by dumon 
physics/electrical circuits
two identival 3v, 1 ohm batteries are connected in parallel with like polarity to like. the norton equivalent circuit of this combination is?
asked by dumon 
science
A boy moves 100m towards North then 70 my towards East then what is its displacement
asked by kamran 
Algebr
what is the simpler form of the expression (5d+2)(3d^2+8d3) A: 15d^3 + 46d^2 + 1d  6 B: 15d^3 + 34d^2  1d  6 C: 15d^3  34d^2 + 1d  5 D: 15d^3 + s4d^2  1d  5 My answer is A or B.
asked by BemoGeno 
physics/electrical circuits
if there are eleven resistors of 33k ohms each in parallel, what is the total resistance?
asked by dumon 
Physics
Due to interference, a thin film reflects no orange light...it appears dark. If you double its thickness and illuminate it again with orange light, what will you see? Choose one answer only. It will appear dark again. It will appear bright (strongly
asked by Shae 
Physics,,,,,,,How do I solve this?
Red light always has a lower frequency than blue light. (a) In a vacuum, these two colors are known to travel at the same speed. How do their wavelengths compare in vacuum? Choose one answer only. wavelength of blue > wavelength of red wavelength of red =
asked by Shae 
Physics,,,,,,,How do I solve this?
Objects A, B, and C lie in the next room hidden from direct view of the person shown in the diagram. A plane mirror is placed on the wall of the passageway between the two rooms as shown. Which of the objects will the person be able to see in the mirror?
asked by Shae 
stats
Is the chi squared test used for continuous/discontinuous data? I think its continuous.
asked by Anonymous 
Math
There is a school that has 6,190 students there is already 216 how many more teachers are needed?
asked by Rena 
Social
it is possible to be part of multiple nations simultaneously. however, in times of crisis, it is essential that loyalty to your country of residence take priority over any other loyalties. To what extent should we embrace the perspectives reflected in
asked by Sarah 
Chemistry
Study the balanced equation. 3O_2=2O_3 When 4.26 x 1016 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed?
asked by Summer 
physics/electrical circuits
hevenin resistance Rth is found [ ] (A) by removing voltage sources and replace with their internal resistances (B) by shortcircuiting the given two terminals (C) between any two open terminals (D) between same open terminals as for Eth
asked by dumon 
Great Cities Past and Present
Answer the following questions in a few sentences. Shanghai Questions 1. How did Shanghai merge East and West in the era of colonialism? Who do you think benefited most from the city as it existed at that time? 2. How was Shanghai transformed in the
asked by Saif 
Science
A simple of oxygen gas at room temperature and 1.03atm occupies a volume of 22dm³. Find the volume of the oxygen gas at STP?
asked by Exzive nanzii 
Science
I am a world of five letter People eats me If u remove my first letter i will be a form of energy If u remove my 2nd i will be needed 4 living If u remove my 3rd letter i will be a preposition If u remove my 4th letter i will be frink 4 u Ans if u r
asked by Chandrakant 
Statistics
A. In a given normal distribution, the sample mean is 75 and the sample standard deviation is 4. Find the corresponding standard score of the following values: 1. 69 2. 85 3. 70 4. 65 B. In a given normal distribution, the population standard deviation is
asked by Sylvia 
English
I was wondering if anyone could give me an idea for this essay prompt? Describe a situation in which you have made a direct impact on the life of someone else. I just have no idea where to start or write about...
asked by Jack 
Maths
Sorry In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that OP=PQ=QB
asked by Edwas 
american government
Which of the following is NOT true in U.S. elections? a. A third party candidate can cause the candidates in a dominating party to lose votes. b. Third parties give those voters who do not support the political views of either dominating party a chance to
asked by huncho jack 
Maths
In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that QP=PQ=QR. Thanks in advance
asked by Edwas 
Chemistry (mol)
How many particles are in 9.22 x 10–37 mol of iron(III) oxide (Fe2O3)? 5.55 * 10^13 mol Fe2O3 5.54 * 10^12 mol Fe2O3 1.47 * 10^23 mol Fe2O3 1.60 * 10^23 mol Fe2O3
asked by Summer 
american government
How would the work of lobbyists be affected if there were no political parties? So I wrote about how there would be a lot of chaos if there weren't any political parties and how everyone would be divided. But I can't figure out this part about the
asked by huncho jack 
Science, chemistry
Electrophilic substitutions reaction of pyrrole
asked by Pronob 
college of education Kangere bauchi state
3×a√1x= 27x find x
asked by sulaiman abdullahi 
Math
1) if the polynomial p(x) has factories of 12, (x5), and (x+4), which of the following must also be a factor of p(x)? 2x^2 + 8 4x^220 6x^2 6x120 x^210x+25 2) IF f(x)= x+7 and g(f(x))= 2x+1, what is the value of g(2)? ^I got 11 The square of a
asked by Aline 
physics/electrical circuits
there are two wires a and b. if the resistance of B is R and the diameter of A is twice of B, the length and the nature of the material is the same, find the resistance of A.
asked by doffy 
physics/electrical circuits
five resistors each has a resistance R ohms and are connected in parallel. if the equivalent resistance is 20 ohms. find the ohmic resistance of each resistors.
asked by dumon 
Electronics
I have an amplifier and an attenuator in cascade. I know that when dealing with amplifiers in cascade, the overall gain is A=A1*A2*A3..., but how do I compute the overall attenuation when dealing with more than one attenuator? How do I compute the overall
asked by Cascade Amplifier and Atenuator 
Math
The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle. Please provide COMPLETE solution and FINAL ANSWER.
asked by K 
Math
First tray apple is 1/5 bad, second tray apple is less 5 apples and 1/4 bad apple, write equation tray 1 in terms of x and solve x
asked by Anonymous 
New Format?
Did Jiskha get a sitewide formatting update? I would suggest next to add buttons that say "B" for bold, "U" for underline, and "I" for italics. Nice!
asked by Anonymous