Questions Asked on
January 21, 2018

Biochemistry
What volume (in milliliters) of 0.180 M NaOH should be added to a 0.135 L solution of 0.0230 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.73? Plz help, I'm not sure how to answer the question! Thank you!!
asked by Deena12 
Honors English 10A
Which of the following sentences contains a verb in the future progressive form? A. The fox was hiding behind the barn, waiting for a chance to attack. B. Housing prices have been slowly increasing over the last months. C. This class has been studying
asked by Help Me Please! 
Algebra 2
URGENT HELP PLEASE the temperature of a room during an experiment can be modeled by the function f(x)=23.7 cos (Pi x /60) +18. Where f(x) is the temperature F degrees and x is the number is hours into the experiment. What is the lowest temperature the room
asked by Algebra 2 
Honors English
Can somebody please let me know or show me a website that clarifies what the elements of the Restoration comedy are? Also how food consumption relates to the play "The Importance of Being Earnest"?
asked by Kimberly 
Chemistry
Magnesium can be used as a “getter” in evacuated enclosures to react with the last traces of oxygen. (the magnesium is usually heated by passing an electric current through a wire or ribbon of the metal) If an enclosures of 0.452L has a partial
asked by Ricky 
Chemistry
What is the maximum amount of magnesium chloride you can produce when 15 g of magnesium (Mg) reacts with 20 g of hydrochloric acid (HCl)? Mg + HCl → MgCl2 + H2
asked by Malia 
physics
the radius of earth is 6000km what will be the weight of a 120 kg body if it is taken to a height of 2000km above the surface of earth?
asked by disha 
State history
7. Describe ways in which the reservation system was beneficial to settlers but harmful to the American Indians.
asked by Help please ! 
Physics
Calculate the frequency of an electron traveling at 1.85 X 10^7 m/s. Since the velocity and mass of the electron are known, I tried to use the De Broglie wavelength formula: let L = lambda, h = plancks constant L = h/mv and I got 3.94*10^11 for the
asked by Stesson 
English
Identify the correct sentence. a) Please pick me up at five p.m. at night after work. b) Please pick me up at 5 p.m. after work. c) Please pick me up at 5 pm at night after work. d) Please pick me up at 5:00 p.m. after work. B
asked by Kourtney 
Physics
It is observed that 55.50 mL of water at 20 ∘C completely fills a container to the brim. When the container and the water are heated to 60 ∘C, 0.37 g of water is lost. Density of water at 60 ∘C is 0.98324 g/mL. What is the coefficient of volume
asked by Marthin 
physic
The figure shows the yposition (in blue) of a particle versus time. (a) What is the average velocity of the particle during the time interval t = 1.50 s to t = 4.50 s? (Express your answer in vector form.) Incorrect: Your answer is incorrect.
asked by joy 
English
Identify the sentence that is punctuated correctly. a) In December, 2013 I visited my aunt for Christmas in Allentown, Pennsylvania, for the first time in 20 years. b) In December 2013, I visited my aunt for Christmas in Allentown, Pennsylvania for the
asked by Kourtney 
physics
a water pump of 1.2kw rating pumps 480kg of water into overhead tank at the height of 5m at 30seconds.calculate the effiency of the pump
asked by victoria 
Math
What is 3 tens plus 52 and 11? Write your answer in 3 forms.
asked by Damon 
Chemistry
If an electric discharge produces 300 liters of ozone (O3), how many liters of oxygen (O2) are required? 3O2>2O3
asked by Student 
Economics
Suppose a university decides to alter its tuition schedule by separating its students based on how many years of college they have completed. Most university programs require four years to complete. Firstyear students would get a 13% tuition reduction.
asked by Help me 
physic
A particle's position is given by z(t) = −(8.10 m/s^2)t^2k for t ≥ 0. (Express your answer in vector form.) (a) Find the particle's velocity at t = 3.00 s and t = 6.00 s.
asked by joy 
Math 6th Grade
Jordan has 4/5 as many DVDs than Joseph. If Jordan has 56 DVDs, then how many does Joseph have?
asked by William Tran from Connexus 
Chemistry
A pyrotechnician mixes 280 g of black powder for a firework. Find the amount of oxygen, carbon dioxide, and sulfur dioxide generated when this firework bursts, if the oxidizing agent in the powder is saltpeter. How do I find their amounts?
asked by Student 
math
3/5 of a revolution represents approximately how many radians? Question 12 options: 6.28 3.14 3.77 108.00
asked by mike 
English
The quarterback, along with his teammates, __ congratulated following a dramatic victory. Which of the following options correctly completes the sentence above? A. was B. were C. have been D. were being
asked by Kaye 
Physics
The mass of ball A is 10kg and the mass of ball B is 5kg. If the initial velocity is set to 3 meters per sec for each ball, what is the final velocity of ball B if the final velocity of ball A is 2 meters per second? Use the elastic collision equation to
asked by Anonymous 
Physical science b
The mass of ball A is 10kg and the mass of ball B is 5kg. If the initial velocity is set to 3 meters per sec for each ball, what is the final velocity of ball B if the final velocity of ball A is 2 meters per second? Use the elastic collision equation to
asked by Anonymous 
Chem Bob Pursley ASAP Please Help!
So I have to draw a couple of lewis structures for; (b) (CH 3 ) 2 S (c) KOCl For b I did HCCSH (Remaining Hs connected above and below C) and for c) I did [K]^+ OCl. Are either of the right?
asked by ChemGuy 
English
Jimmy you must leave the room shut the door and be quiet. Which of the following options correctly punctuates the sentence above? A Jimmy, you must leave the room, shut the door, and be quiet. B. Jimmy; you must leave the room, shut the door and be quiet.
asked by Kaye 
Biology
A heterozygous brown mouse is crossed with a homozygous white mouse. What are the genotypes and phenotypes of the offspring? If these mice had 3 offspring, what is the probability that all 3 would be white?
asked by Jenna 
Chemistry
In the equilibrium system CH3COOH(aq) + H2O(l) —> — H3O+ CH3COO(aq) .
asked by L 
Chemistry
Hi this question is on my study guide and I want to make sure I get to the right answer and know why. Explain why the following reaction goes to completion instead of to equilibrium. Mg(s) + 2HCL(aq) > MgCl2 (aq) + H2(g) (subscript 2 after MgCl2 and H2)
asked by Lauren 
social studies
how is life different now in the European Union (EU) than before it was formed.
asked by Kate 
Java
Design a flowchart for a program that prompts the user to enter ten numbers one at a time. After the user has entered all ten number the program will then print out the total of those ten number and quit.
asked by Max 
Math
Find graphing solutions to 4xy=5
asked by Krystal 
English
The team __ is wearing the red jerseys is the one I came to see. Which of the following pronouns correctly completes the sentence above? A. who B. whom C. that D. which
asked by Kaye 
Physics
How does the electric potential energy (EPE) between two point charges depend upon their separation s? a. EPE ∝ 1/s b. EPE ∝ s c. EPE ∝ 1/s2 d. EPE ∝ s2 I want to say it's a. since it's part of the formula UE = kq1q2/s but I'm not too sure if that
asked by Brian 
Physics
As you travel through space, you find yourself moving into regions of everhigher voltage. You are traveling . . . A) perpendicularly to the electric field. B) in exactly the same direction as the electric field. C) in a region with no electric field. D)
asked by O 
Science
A coach wants to find out the speed of the runners on the track team.Tell what simple equipment the coach need in order to do this and explain how it should be done.
asked by Mel 
English
The surgeonoperated on the patient has a great reputation. Which of the following options correctly completes the sentence above? a) whom b) that c) who d) which
asked by Kaye 
Chemistry
Hi this question is on my study guide and I want to make sure I get to the right answer and know why. Calculate K for the synthesis of ammonia at 400°C N2(g) + 3 H2(g) —> 2 NH3(g)
asked by Lauren 
Physics
The tube of a mercury thermometer has an inside diameter of 0.130 mm. The bulb has a volume of 0.270 cm^3. How far will the thread of mercury move when the temperature changes from 13.5 ∘C to 32.5 ∘C? Take into account expansion of the Pyrex glass.
asked by Marthy 
Maths
A map has A scale of 1.25000.two towns are 15cm apart on the map.how far apart in real life ? answer in metres ?
asked by Sam 
Geography
Assess the extent to which the ethical consumption trends may have reduced the negative consequences of globalisation. Thank you.
asked by Adam 
advanced algebra 2
(5y^423y^3+24y^27)/(y3)
asked by bret 
Math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches. Calculate with and without distribution
asked by Darkdream 
Math
A monkey climb 3metre in 1second but slip 1metre. How will take time climb 60metre
asked by Pawan 
Physics
As you travel through space, you find yourself moving into regions of everhigher voltage. You are traveling . . . A) perpendicularly to the electric field. B) in exactly the same direction as the electric field. C) in a region with no electric field. D)
asked by O 
Chemistry
List the most i mportant (strongest) intermolecular force(s) that must be overcome to (a) vaporize liquid CH 3 OH (b) remove water of hydration from NiSO 4 • 7H 2 O (c) melt solid KBr so for a Isaid H bonding, for b I said iondipole (not sure about this
asked by Adam 
Java
The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design the Javascript for a program that accepts data about an ad:
asked by Max 
Social Studies
What is the goal of the European Union
asked by Tyler 
Chemistry
How do you find a reaction order?
asked by Student 
Physiology
1. Two molecules of ____ are produced by glycolysis. Each molecule has ____ carbons. C A. Oxaloacetate...4 B. Citrate...3 C. Pyruvate...3 D. Acetate...4 2. Oxaloacetate combines with acetyl coA at the beginning of. D A. Electron transport chain B.
asked by Hayley 
physics
a car of mass(m)800kg initially at rest is accelerated at rate of 4m/s calculate the k.e @ 5seconds
asked by victoria 
Further Mathematics Arithmetic Progression
I have a problem solving the question below could someone help me solve it or at least give me a hint on how to solve it ? If you can help here is the question ; p,q,r are three consecutive terms of an A.P whose sum is 21. The ratio p:r = 6:1 , Find p:q:r.
asked by Ini 
BIOLOGY
Wat is Enterobacteria including Fluoroquinolones
asked by PEREKUN KING HEZEKIAH ESKAYXZY IYANU 
PreCalculus
So I'm given a general equation and am expected to get the location on the unit circle, the period, and the general solution to it. The equation is (3cot^2)2x1 = 0. I've gotten it down to (cot^2)2x = 1/3 but I have no clue what to do next. Please help!
asked by Mariam 
Math
In 2009, a diabetic express company charged $39.95 for a vial of type A insulin and $30.49 for a vial of type B insulin. If a total of $1446.64 was collected for 40 vials of insulin, how many vials of each type were sold?
asked by Erin 
Math
A rectangular parking lot has an area of 7/8 of a square kilometer. The length is 1/4 kilometer. What is the width, in kilometer, of the parking lot?
asked by Anonymous 
Physiology
Will someone look at these again please? There are 2 wrong but can't figure out which 2 1.During which stage of cellular respiration is most ATP made? C A. Glycolysis B. Chemiosmosis C. Electron Transport Chain D. Citric acid Cycle 2. The
asked by Hayley 
Math
The only way to get to Ship Island is to take a boat, which is free for 2 and under, $17 for children 3 to 10 years old, $25 for seniors 62 and over and $25 for everyone else. Debbie paid $116 for 6 people in her family to go to the island for the day. Is
asked by Kris 
Physiology
1. Atp synthase is an enzyme in the. D A. NUCLEUS B. CELL MEMBRANE C. MITOCHONDRIAL MEMBRANE D. MITOCHONDRIAL MATRIX 2. Each condon on a(n) ____ molecule encodes for ___ amino acids. A A. mRNA...one B. mRNA....three C. tRNA...three D. tRNA...one
asked by Hayley 
Math
A farmer harvested 144 bags of maize in one season. In the second season the yield increased in the ratio 4:3. The farmer supplied all the bags of maize harvested in the second season equally to three millers. How many bags of maize did each miller get?
asked by Elis 
Math
rectangular water tank whose base is 1.5 m by 0.5 m is to be filled with water 50 litre containers. How many such containers will be required to fill the tank to a height of 1 meter?
asked by Elis 
Math
A watch loses 30 second hour. If the watch was set right on Sunday at 11:30 p.m. What day and time did it show after 10 hours?
asked by Elis 
Math
The height of an isosceles triangle is 4 cm. Each of the two equal sides measure 5 cm. What is the area of the triangle?
asked by Elis 
Math
1 x (4)8 x 9/3 This is a question from khan academy and it says the answer is 20. When it shows their work, it shows they are doing the 9/3 division first, is that correct? Isnt the 8x9 first?
asked by Javier 
Chemistry
Trichloromethane consists of10.05% carbon 0.83% hydrogen and 82.12% chlorine.Its relative molar mass is 119.5% .Find its molecular mass(Cl=35.5,C=12,H=1)
asked by Morgane 
Math
I am a little confused with this trigonometry question. It says that sin0=O. I understand that because It says sin it means quadrant 1 and 2. The possible answers are 0, 90, 180, and 270. I know 270 is not correct but the others are confusing me. Angles 0,
asked by Ineedhelp 
Math
Hi! I'm Julia Nae and I need help in this question: In a class of 50 students, 19 are girls. What percent of the class are boys? Pls. Just answer this quickly because I really need this tomorrow (Jan.22,2018). I'm living in the Philippines and tomorrow is
asked by Julia Mae 
Physics
A 68.6 kg solid aluminum cylindrical wheel of radius 0.45 m is rotating about its axle in frictionless bearings with angular velocity ω = 45.5 rad/s. If its temperature is then raised from 21.0 ∘C to 88.0 ∘C, what is the fractional change in ω?
asked by Marthy 
math
is 8square root 2 + 2square root 2 equal to 10square root 2? Sorry, I don't know how to type that on my computer. So 8 next to the square root symbol with 2 underneath it + 2 next to the square root symbol with 2 underneath it. I'm thinking those are like
asked by carly 
Chemistry(Photoelectric effect)
I've got this question wrong 2 times now... Which of the following statements about the photoelectric effect are correct? I. If electrons are being ejected, the number of electrons ejected increases with increasing light intensity. II. The minimum energy
asked by John 
Algorithms
Consider a very large undirected graph of Email Networks. The nodes (or vertices) represent email addresses, and an edge represents the fact that there was at least one email in at least one direction between the two addresses. Which technique will you use
asked by Learner 
Maths
Determine the two consecutive integers that each irational number lies between 56,45and6
asked by Pertunia 
Math
A survey shows that 15% of men in a cerain are tall if a man is chosen in the street one afternoon what is the probability that he is short
asked by Seun 
Physiology
1.During which stage of cellular respiration is most ATP made? C A. Glycolysis B. Chemiosmosis C. Electron Transport Chain D. Citric acid Cycle
asked by Hayley