Questions Asked on
September 9, 2016

Physics
A baseball is his so that a travel straight upward after being struck by the bat. A fat observes that it takes three seconds for the ball to reach its maximum height. Find the balls initial velocity and the height it reaches. my professor showed a similar
asked by Lauren 
Math
The least common multiple of two numbers is 60 and one of the numbers is seven less than the other number what are the numbers? justify your answer
asked by Ariana 
Physics
A baseball is hit so that it travels straight upward after being struck by the bat. A fanobserves that it takes 3 seconds for the ball to reach it's maximum height. Find the balls initial velocity and the height it reaches. My teacher gave me a similar
asked by Ri 
chemistry
presentation Tasks: Ephedrine (structure see below) is a natural product that is used as a medicine in the treatment of asthma. The corresponding acid to ephedrine have pKa = 9.60 at 25 ° C. Question: Calculate the pH reaches 991 mg ephedrine
asked by Maria 
chemistry
Calculate the pH at 25 ° C when 120 mL of a HCl solution having a concentration of 50 mM is added 50.0 mL of a 120 mM ephedrine solution. Assume no change in temperature. Amitriptyline is a drug used in treating depression. It is typically formulated
asked by Maria 
chemistry
Calculate the pH reaches 30.0 mL one 0.200 M solution of HCl salt of amitriptyline is added 100.0 mL of a NaOH solution of concentration 80 mM.
asked by Maria 
chemistry
a) Hva er fellesioneffekten? Veronal er et barbiturat (struktur se over). Barbiturater er en stoffklasse som forekommer i en rekke legemiddelgrupper, blant annet i sovemedisiner (hypnotikasedativa), i smertestillende (anestetika) og i antiepileptika. Et
asked by Maria 
chemistry
To create a 0.1 M carbonate buffer pH = 10.2. You choose to use a combination of HCO3 / CO32. This buffer system has pKa = 9.9. a) Calculate how much you need to weigh in each of the sodium salts, NaHCO3 and Na2CO3, to create 1.0 L carbonate (with
asked by Maria 
chemistry
Cocaine is a weak base (Figure see below) with pKb = 5.59. Cocaine has local anesthetic effect (local anesthetic) but is also a narcotic. a) Calculate the ratio of the concentration of cocaine and its conjugated acid in a solution which has. pH = 7.40
asked by Maria 
chemistry
In quality control of raw materials for pharmaceutical production often used foul reactions to prove that raw materials in salt form containing the appropriate salt. Hydrochloride (eg. Amitriptyline hydrochloride) can be detected for example by
asked by Maria 
chemistry
a) What is fellesioneffekten? Veronal is a barbiturate (structure see above). Barbiturates is a substance class which occur in a variety of drug classes, including sleep medications (hypnotikasedativa), in painkillers (anesthetics) and anticonvulsants.
asked by Maria 
algebra
3x − y2 − 3 + 2y2 + 2x − 4 I have to combine like terms My answer is 5x+1y7
asked by jennifer 
Maths
David is 3 years older than Justin. In 4 years, David will be one and a half times as old as Justin. How old is David now?
asked by Jonnyko 
Math.
A shop was selling chocolates for rd.1and if you get return 3wrappers you get o e free.if so how many chocolates can you get for rd 45.
asked by Jst 
English
1. Oh, Susanna Oh, I came from Alabama with my banjo on my knee,  2. Oh, Susanna Oh, I come from Alabama with my banjo on my knee, ================================ There seem to be many versions for the famous song
asked by rfvv 
maths
In 2013 all the 180, student of a class played either chess polo or tennis of two out of there 3 game or all the 3 game 84 of them played chess 87 played polo and 87 played tenins 39 pay led only polo and 16 played both chess and tenins but not polo in
asked by NIKHIL jain 
Chemistry
2CO(g) + O2(g) > 2 CO2(g). What volume of oxygen is required at 25 degrees celcius? This is all the information the question come with, and I am not sure if there might be something missing?
asked by Gill 
Chemistry
2CO(g) + O2(g) > 2 CO2(g). What volume of oxygen is required at 25 degrees celcius? This is all the information the question come with, and I am not sure if there might be something missing?
asked by Gill 
chemistry
a) What is fellesioneffekten? Veronal is a barbiturate (structure see above). Barbiturates is a substance class which occur in a variety of drug classes, including sleep medications (hypnotikasedativa), in painkillers (anesthetics) and anticonvulsants.
asked by Maria 
Chemistry
2CO(g) + O2(g) > 2 CO2(g). What volume of oxygen is required at 25 degrees celcius? This is all the information the question come with, and I am not sure if there might be something missing?
asked by Gill 
help please?!
If it takes 30 seconds for a reactant concentration to decrease from 1.0 M to 0.5 M in a firstorder chemical reaction, then what is the rate constant for the reaction?
asked by jameson 
hcc
A tuberin skin test should be read within 24 hours administered. sincefromas
asked by dan 
anal.gom.
ellipse has an equation of x^2+3y^2+16x+4=100y? standard form
asked by Anonymous 
Math.
Define quantum
asked by Jst 
Chemistry
What changes of state are involved in this use of ethyl chloride? Select all that apply. Select all that apply. 1liquid to gas 2liquid to solid 3gas to solid 4liquid to solid 5solid to liquid 6solid to gas
asked by Sam 
chem help!
Which statement is true about a reaction at equilibrium? A. The reaction is not reversible. B. The reaction concentrations of the reactants and products are always equal. C. The reaction rates of the forward and reverse reaction are always equal. D. The
asked by jameson 
Agriculture
Discuss agriculture as the nerve center of the nation.
asked by Emmanuella 
math
Show the functions f= f(z); z=x+iy is nowhere di fferentiable f(z)=cosy i siny how do i do this? heres my idea separate them into u(x,y) and v(x,y) then differentiate them and since the first derivative of u(x,y) and v(x,y) does not equal i can deduce
asked by lim 
chem help!
If the equilibrium constant is much less than 1, how can you tell where the equilibrium lies? A. Reactants are in the numerator of the equilibrium expression, so equilibrium lies toward the reactants. B. Products are in the numerator of the equilibrium
asked by jameson 
chem help!
A reaction has an equilibrium constant very much less than 1. Will the reaction proceed spontaneously? A. Yes, because products are favored and deltaG° < 0. B. Yes, because reactants are favored and deltaG° > 0. C. No, because reactants are favored and
asked by jameson 
pre calc
Give the coordinates of the circle's center and its radius. (x−1)^2 +(y+8)^2 =16 a. (1,8); r=4 b. (1,8); r=16 c. (1,8); r=4 d. (1,8); r=16 e. none of these
asked by emma 
Math
first five number of: a) Palindromic numbers b) Triangular numbers c) Square numbers
asked by Tula 
Math
Two spheres of copper, of radii is 1 cm. and 2 cm. respectively, are melted in to a cylinder of radius 1 cm. Find the altitude of the cylinder.
asked by Anonymous 
Math
Find the area of the largest square that can be cut from a circle whose radius 4 mm?
asked by Anonymous 
Math
Increase the quotient of 1/2 and 2 by 1
asked by Tata 
Social Studies
1. Why was capturing Quebec so important for the British during the French and Indian war? A. By gaining control of Quebec, the British could increase financial and military support from the colonists.*** B.By gaining control of Quebec, the British would
asked by the number 7 the letter Q 
English
1. Because he had no money, I lent him some money. 2. He having no money, I lent him some money. (Are both the same? Can we use #2?) 3. Because Dave was hungry, I gave him some bread. 4. Dave being hungry, I gave him some bread. 5. Dave hungry, I gave him
asked by rfvv 
maths
2,3,5,7,11,13,?"
asked by Anonymous 
Math
Which table shows a function whose range has exactly three elements? x f(x) 1  4 2  4 3  4 /////// x f(x) 3  8 4  6 5  12 6  8 /////// x f(x) 0  5 2  9 0  15 /////// x f(x) 1  4 3  2 5  1 3  4 Is the answer C? I was also thinking A since
asked by Sandy East Ward 
math 101
8 janitors can clean the college grounds in 3 hours. how long will it take 6 janitors to clean the college grounds?
asked by Arvee 
english
"I hear American siniging the varied carols I hear" Is this a) onomatopea b) anaphora c)Aliteration d)Antithesis E) Personification I think it is personification because Americaa is not a person therefore it can't sing?
asked by bob 
Math
xy=5 x+y=7
asked by Usman 
math
innthe expression 174x=679x, what is the value of x? please show me the steps.
asked by Arvee 
math
The perimeter of a rectangular garden is 46. The length is 7 less than 4 times the width. What are the dimensions of the garden?
asked by stacy 
ALGEBRA 2
Insert ,or = to make the sentence true. 1/3 ___ 2/5
asked by Becky 
math
you have 8 different flavors of ice cram and 10 diff toppings how many different desserts could you make
asked by Anonymous 
chemistry
If 100 g of butane are reacted with unlimited amounts of oxygen, how much carbon dioxide (in grams) and how much water (in grams) should form?
asked by Greg H 
math
1. Give an example of an open equation. 2. How can you use an equation to make a prediction from a pattern ?
asked by oto 
Chemistry(please check my answer)
The transuranium elements A. are the elements with atomic numbers above 92. *** B. occur in nature. C. are sometimes radioactive. D. all of the above
asked by Cherry 
stuff
is hair biotic or abiotic
asked by bob 
ENGLISH
RIDDLE:My weakness and fame equals
asked by HENRY 
Algebra 2
Which probability matches the probability histogram? Assume that there are 2 trials. X = 2 where X represents the number of successes. . P(success)=0.3 P(success)=0.4 P(success)=0.6 P(success)=0.7
asked by Arianna 
MATH
IF ALPHA +BETA=PI/2 THEN SIN ALPHA =1/3 THEN SIN BETA =?
asked by R.SURYA PRAKASH 
Math
27 marbles in a bag containing 9 black, 5 white, and 13 clear what is the percent of getting a white.
asked by Cody ragland 
Math
A bag contains 8 white, 6 black and 4 red discs. They are selected at random and not replaced. What is the probability that there is at least one black disc in the first four discs drawn out of the bag?
asked by Grace 
Science
A body is moving with uniform accelaration goes 65 meter 5th second and 105 meter in 9th second. How far will it go in 20th seco d
asked by kabak tamo 
PHYSICS
a violin string emits sound of freqency 510Hz.how for will be the sound waves reach when string completes 250vibration?the velocity of sound is 340M/S.
asked by value 
Social Studies
What kind of relationship did colonists have with the Native Americans A. The two groups were equals B. Colonists ignored Native Americans C. Native American taught colonists religious rituals D. Colonists treated Native Americans poorly
asked by Sam 
math
If the difference between the exterior regular polygon and an (n+1) sided regular polygon is 12 find the value of n.
asked by poonam 
HIT 211
Anesthesia services for closed treatment of fracture of numerous;patient is 85 years old,but healthy.Provide the code(s)and physical status modifier.
asked by Lora Jackson 
Science
One:the sI unit measure for length the meterwould be most appropriate when Two:The metric System Of measurement is based on the number Three: Scientists use SI because it allows them to compare data and communicate with each other about their results
asked by Mia 
Calculus
An airplane takes off from an airport at sea level and climbs at the constant rate of 5m/s . The outside air temperature T varies with altitude h according to the law T=150.0065h where T is measured in degree Celsius and h in meters above sea level . Find
asked by Anonymous 
Chemistry
Calculate the degree of dissociation and oh conc in 0.1m (nh4)3po4 having alpha 50%
asked by Sudiksha soni 
History
Which features describe the religion handed down in jewish scripture? Select all that apply. A) Belief in opposing forces of good and evil B) Call to spread jewish belief in the diaspora C)Guidance from the sacred text known as the torah D)Obedience to the
asked by Sage 
Math
A circle has a radius of 8cm . Find the length s of the arc intercepted by a central angle of 110° .
asked by Ange 
Tax Accounting
Many tax professionals have moved into the field of financial planning for their clients. How do taxes impact financial planning for a client? Why do tax professionals have a perfect opportunity to perform financial planning for their clients?
asked by Patte 
Math
The cost for 3 dinners plus a 15% tip is $27.60. Write an equation representing the situation if p is the price of the dinner in dollars. You may asssume there is no tax.
asked by Bobby 
chemistry
Which of the following reactions have a positive delta S rxn? check all that apply 1) A(s)+2B(g) >C(g) 2) 2A(g)+3B(g) >4C(g) 3) 2A(g)+2B(g) >5C(g) 4) 2A(g)+B(s) >3C(g) Not sure how to tell if the reaction is positive.
asked by ang123 
Chemistry
Ammonia is composed of hydrogen and nitrogen in a ratio of 9.33 g of nitrogen and 2.00 g of hydrogen. if a sample of ammonia contains 6.28 g of hydrogen, how many grams of nitrogen does it contain?
asked by Kelsey Walenciak 
mates
lo que es 20 Plus 65 Plus 76 emmo~~~
asked by ayudarme en matemáticas 
Social studies
which of the following were effects of pizarro and cortes defeat of native americans Settlement and colonization of Florida under Spanish rule Inspiration for other Europeans to being explanations and settlement •• Settlement and colonization in the
asked by Lily 
English
What is the prepositional phrase in the following sentance: We take our vacation in July and August.
asked by Diedra 
math
which property is illustrated by the equation 5/6(11)=11(5/8)
asked by ellen 
Physics
Superman lived on Krypton where the acceleration due to gravity is 23.6 m/s2. If a woman falls from a building that is 88.3 m tall, how long does he have to save her before she hits the ground? Givens: Unknown: Substitute: Solve:
asked by Anonymous 
Chemistry
The density of an unknown gas is 1.23 g/L in 330K and temperature 25.5 pressure kPa. What is the molar mass of the substance?
asked by MONICA 
Math
A function f is defined by the equation f(x)=4x−8. Suppose that the state variables T and Q are related by this function according to the mapping f:Q↦T. Suppose that T=3. Use the equation of the function to find the value of Q.
asked by Zach 
calculo
Let f(x) = 4x5/4 + 10x3/2 + 9x. Find the following. (a) f '(4)
asked by df 
Calculus
The following equation defines y as a function of x. −5xy−3x=−6y
asked by Zach 
Math
In a class of 35 students 29 play droughts,16 play chess and 10 play both droughts and chess what's the number of students who play droughts only and chess only???
asked by Rhonda 
Algebra HELP PLEASE
A pair of jeans is on sale for 25% off the original price. Which expression represents the sale price? If the original price of the jeans is $40, evaluate the expression to findicate the sale price.
asked by Kitty 
English
Oh, Susanna, Oh don't you cry for me For I come from Alabama With my banjo on my knee  What is the meaning of the sentences? 1. Don't cry for me, because I've come from Alabama with my banjo on my knee. 2. Are you
asked by rfvv 
Math
The following equation relates u and t. 3t=(1)/(7+u) Solve for u as an explicit function of t.
asked by Sarah 
Math
The population of a town in 1920 was 3500 people. The town's population decreased linearly, and in 1927 the population was 3185. Find a formula for P, the town's population, in terms of t, the number of years since 1920.
asked by Sarah 
Math HELP!
Richard paid $80 per hour plus $55 for parts to get his computer fixed. If Richard paid a total of $175, how many hours did he pay for?
asked by Amanda 
Math
You bought a new car for $26,500 in 2005, and the value of the car depreciates by $900 each year. Find a formula for V, the value of the car, in terms of t, the number of years since 2005.
asked by Billy 
Math
Machine A was able to finish copying a set of document in 36 minutes. Machine B was brought in to work together with machine A to finish copying the document in 20 minutes. How long would it take machine B to finish copying the document by itself
asked by John 
Math
The function f relates state variables f:Q↦S according to a power function f(x)=Axp. For each state, give the corresponding equation involving the parameters A and p. (Q,S)=(6,11) implies ____=_____ (Q,S)=(5,19) implies ______=_____
asked by Terrance 
Math
The GCF of two numbers is 5. The LCM is 60. One of the numbers is 20. What is the other number?
asked by Devan 
math
Sum of 2 numbers =14 Difference of the numbers =40 Find the numbers. What is their difference?(show work)
asked by I REMAIN ANONYMOUS 
Math
A 75% alcohol concentration mixture of water and alcohol and was made by mixing 30 ml of pure alcohol with 150 ml of original mixture
asked by Jordan 
College mathematics
if 1/2 cup of sugar is used to make 48 cookies how many cookies 2 ¼ cups of sugar?
asked by Nadia 
science
What is , a quarter after four in digital form.
asked by Connie 
Math Help needed quickly
In a mixture of alcohol and water the concentration of alcohol is 55%. Water is 20 ml less than alcohol in the mixture. There should be _____ ml of alcohol and ____ ml of water to make up ____ ml of mixture
asked by Quang 
Science
How much mL of dilute nitric acid is needed to add in control solution in chloride limit test in sodium hydroxide sample according to japanese pharmacopia??can u please give me Answer
asked by Palakpatel 
Geometry
A rectangular prism is measured 84 cm(l) x 42cm (w) x 56cm h. What is the largest size cube that fits the dimensions of the prism? Number of cubes required? Maximum length of the edge of the cube that fits 64cm, 42cm, and 56cm is _____cm. Number of
asked by Brian 
Math
Tom is 17 year old and mary is 3 year younger then.tom how old will mary be in 5 year
asked by Princess brown 
Math
Heidi conducted a survey in her neighborhood to determine the restaurant her neighbors preferred. Restaurant Number of Neighbors Pams Diner 23 Nick's 36 Magnolia 12 Olive Groove 22 Fine Dining 20 Patsy's 22 Best Eatery 22 Heidi concluded that one of the
asked by Callie 
Science
How much mL of dilute nitric acid is needed to add in control solution in chloride limit test in sodium hydroxide sample???can u please give me Answer urgently??
asked by Palakpatel 
Chemistry urgent please
How much mL of dilute nitric acid is needed to add in control solution in chloride limit test in sodium hydroxide sample???can u please give me Answer urgently??
asked by Palakpatel 
Math
A group of 54 randomly selected students from one school district participated in a survey. Out of the 54 students in the survey, 9 are enrolled in band camp. If there are a total of 1,200 students in the school district, which estimate is reasonable for
asked by Pokemon 
Math
The stemandleaf plot shows the scores of Jon's Basketball team for the year. 3 8 8 3 3 5 7 5 2 4 6 9 6 1 3 8 3 8 represents 38. What is the range of the basketball scores? 53 52 30 38
asked by Frankie 
Science
1. A study was done to find if different tire treads affect the braking distance of an Army Jeep. The same road surface was used each time. Independent variable: Tire Treads Dependent Variable: Braking Distance 2. An experiment was performed to determine
asked by Plz check my answers! 
Physics
A car goes North at 55mi/hr for 1.3 hrs. It then goes East at 65mi/hr for 45 min. What is the total distance travelled, total displacement,average speed and average velocity of the car?
asked by Erica 
Math
China population is approximately 1.325 billion. The United States has approximately 0.304 billion. How many times as many people live in China than in the U.S. Round to the nearest tenth if necessary.
asked by Lola 
math
Explain the difference in meaning between 3 and 3. In your explanation, be sure to include various key words you learned within this unit.
asked by nania 
College Algebra
A 6 ft tall man is standing 40 feet from the light post, if his shadow is 20 feet, determine the height of the lamp. Here I use simple ratios: 40ft + 20ft = 60ft 6/20 = h/60 Cross multiply both sides with 60: 6 (60)/20 = h 360/20 = h h = 18 Height of the
asked by Anonymous 
Chemistry
For my lab, I have been asked to calculate the pKa of an unknown amino acid. We titrated the unknown amino acid with NaOH. The pKa needs to be calculated using the Henderson Hasselbach Equation. Obviously you can just get the pH from any point on the graph
asked by Eleanor 
Math
A train travels at an average speed of 15 m/s. a) Express its average speed in km/h b) Find the time in sec taken by the train to travel 750m
asked by Tanto 
Algebra
(x^2)^3 (x^2)^4 on the bottom its x^15 I did this to get my answer (x)^6 (x)^8 /x^15 got x^4 / x^15= x14(15)= 29 final answer is x^29 IDK what I did wrong the computer saying its wrong! Help pleas
asked by Sarah 
Math
I am very confused on how to figure out the below math problem: A traffic light changes every 30 seconds. Another traffic light changes every 40 seconds. Both lights just changed. After how many minutes will both lights change at the same time again?
asked by Matt 
Math
I am also having big trouble with this math problem. A teacher is making identical activity packets using 92 crayons and 23 sheets of paper. What is the greatest number of packets the teacher can make with no items left over? Please help me.
asked by Matt 
math
three fireworks are fired at the same time. The first one is fired every 64 seconds, the second one is fired every 84 seconds and the third one is fired every 96 seconds. How many seconds after they start will it take until all three fireworks are again
asked by lulu 
Algebra
(2x^2y^6)^4 / (4x^3y^4)^2 = I got 16x^14/y^16 The computer is saying it's wrong and I don't get it. Even watched a video on similar problem. Help me!
asked by Sarah 
Grammar world
They crowned him king
asked by Nagaland edition for class 6 
Physics
What acceleration is imparted to a football when the player kicked it with a force of 25 N? Mass of a football = 0.40 kg.
asked by Jenny 
Physics
Two forces of magnitudes 6.0 N and 4.0 N act on a 3.2 kg body. What is the acceleration produced when these forces are acting in the same direction? What is the acceleration produced when these forces are oppositely directed?
asked by Jenny 
Math
There are 72 boys and 90 girls on a math team. For the next competition, Mr Johnson would like to arrange all the students in equal rows with only girls and only boys in each row. What is the greatest number of students that can be in each row? Answer: 72
asked by Matt 
Algebra
2^1+4^5 I thought 5/8 but its wrong. help please
asked by Sarah 
Math
The new facility is square in shape. The length of one of the wall is 20 feet. How many square feet is the facility?
asked by Tammie 
Physics (Help Plz)
Ilya and Anya each can run at a speed of 8.00 mph and walk at a speed of 3.50 mph . They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half.
asked by Ashley 
math
What is the perimeter of the facility? 20 feet
asked by Tammie 
Physics
The observation deck of tall skyscraper is 370. m above the time required for a penny to free fall from the deck to the street below and its velocity when it reaches the ground . Plzz help I know the t= .869 and the v= 85.2 and thank u :) have a good day
asked by Dyla 
Math
You’re involved in the design of a new facility. It is important for people to move between work stations quickly. Based on the figure below, how many feet would a person need to walk to get from Work Station 1 to Work Station 3? Work Station 1 5 feet
asked by Tammie 
Physics
If a basketball player has a vertical leap of 1.29 m , then what is his takeoff speed and his hang time ( total time to move upwards to the peak and then return to the ground ) ?
asked by Chloe 
Math
Tom has three pieces of rope with lengths of 140 cm, 168 cm and 210 cm. He wishes to cut the three pieces of rope into smaller pieces of equal length with no remainders. a) what is the greatest possible length of each of the smaller pieces of rope? b) how
asked by Dara 
physics
how many meters does a car travel in 3 seconds at 75 mph
asked by jw 
Math
Jack's age is 3 times more than his younger cousin, Gabby's age and 4 times more than his younger brother's. If Jack's younger cousin's age is 8, how old is his younger brother?
asked by edwina