Questions Asked on
April 13, 2014

geography
what is the value of igneous rocks to humankind

calculus
A population of a very rare insect in an area in a discrete rural region in ASEAN will grow at a rate that is proportional to their current population. In the absence of any outside factors, the population will triple in two weeks’ time. On any given day

English
Which option below would make the following statement parallel? She insisted the presentation not only begin on time but: A. it will be closed to anyone who arrived late. B. conclude 10 minutes earlier than scheduled. C. that she be allowed extra time

linear algebra
In a dilation with a scale factor of 3/4 , the image is __________ the preimage

algebra 1 question pls help!!!
1. Find the mean, median, and mode of the data set: 15, 16, 21, 23, 25, 25, 25, 39 a.mean = 23.6, median = 25, mode = 24 b.mean = 24, median = 23.6, mode = 25 c.mean = 24.6, median = 24, mode = 25 d.mean = 23.6, median = 24, mode = 25 This is what i got:

Algebra
The accompanying bar graph shows the milk fat percentages in three dairy products. A=whole milk @4%. B= milk for cream cheese @8%, and C= cream @30%. How many pounds each of whole milk and cream should be mixed to form 200 lb of milk for cream cheese? How

freebody diagram help
A 20.0 kg block is being pushed forward on a flat surface with a force of magnitude 45.0 N against a frictional force of 13.0 N To draw this freebody diagram, would I only have the forces mentioned in the question? or would i include the 9.8m/s^2 force

English
Choose the version of the sentence below that has correctly placed modifiers. A. Carrie said that there was nothing like a cold soft drink, frosty and foaming, on a hot day. B. Frosty and foaming, Carrie said that there was nothing like a cold soft drink

Math 10
Hello, Is there easiest and simplest way to do this question? "A baseball is thrown from the top of a building and falls to the ground below. The height of the baseball above the ground is approximated by the relation h = 5t2 + 10t + 15, where h is the

math trigonometry
two office towers are 31 m apart. From the top of the shorter tower, the angle of elevation to the top of the tall tower is 25 degrees . The angle of depression to the base of the taller tower is 31 degrees. Calculate the height of each tower

college algebra
A rubber ball is dropped from the top of a hole.Exactly 3.0 seconds later, the sound of the rubber ball hitting bottom is heard.How deep is the hole? HInt: The distance that dropped object falls in t sec is represented by the formula s = 16t^2.The speed

maths
i am a two digit number above 50. the sum of my digits is 12. and the difference of my digits is 4. who am i?

college algebra
a rocket is fired upward from some initial distance above the ground. Its height in feet, h,above the ground, t seconds after it is fired, is given by h=16t^2+32t+560.

Calculus
ABC Daycare wants to build a fence to enclose a rectangular playground. The area of the playground is 900 square feet. The fence along three of the sides costs $5 per foot and the fence along the fourth side, which will be made of brick, costs $10 per

English(FAL)
What are the comparatives and Superlatives of Infectious?

social studies
(3,5,7,9,11)U(3,6,9,12,15)would be correctly expressed as

Science
A homeowner determined that he used 114 gallons of oil every month to heat his home during the winter. This information would be considered part of his _______________________________. Idk this one please help!!!

Science
A 3.4g sample of h2o2 solution containing x% H2O2 by mass requires x ml of a KMnO4 solution for complete oxidation under acidic condition. the molarity of kmno4 solution is: a)1 b)0.5 c)0.4 d)0.2

SCIENCE
To solve the problem of a polluted stream a scientist traced where the pollution came from. She determined that the pollution was coming from many small sources. She worked on a plan to help reduce the pollution to the stream. This is an example of

MATH
dANIEL HASS A SET OF RED, GREEN AND BLUE MARBLES tHE RED ONE MAKE UP 1/2 OF THE SET THE SET HAS 2 BLUE THE NOMBER OF GREEN IS TWICE THE NUMBER OF BLUE HOW MANY MARBLES ARE IN DANIELS SET/

Help
A homeowner determined that he used 114 gallons of oil every month to heat his home during the winter. This information would be considered part of his _______________________________.

math
Use the given transformation to evaluate the integral. double integral R (x − 8y) dA, where R is the triangular region with vertices (0, 0), (7, 1), and (1, 7). x = 7u + v, y = u + 7v

Math
Annual sales (in millions of units) of pocket computers are expected to grow in accordance with the following function where t is measured in years, with t = 0 corresponding to 1997. f(t) = 0.18t^2 + 0.16t + 2.64 How many pocket computers will be sold over

Math
Jason Printing has $85,000 to invest. They can invest in Wilder Revenue at 10% compounded semiannually or at Cheapskate Investments at 9.8% compounded monthly. a) Calculate the two APYs and compare them to determine your answer. Make sure to distinguish

math
Good 1 Steve so I sux at math but your here :) Heres another: X = [students playing football], Y = [students playing baseball], and Z = [students playing rugby]. Draw a Venn diagram of Z – (X U Y), and write a sentence describing what the set represents:

chemistry
Biosynthesis of proteins from amino acids is an energy driven condensation process (ÄH = + 10 kJ/mol) requiring energy input in the form of ATP. In an experiment, 0.4 mol of amino acids reacted to give a polypeptide and some ATP was consumed. a) explain

math
identify the sequence 1.6, .8, .4, .2 as arithmetic, geometric, or neither and why.

maths
i needhelp!!! how do you find the surface area of a cake that has a piece cut out?????

trig/ vectors
Points C and D are directly across from each other on opposite banks of a river. A boat travels across the river directly from point c to point d at a speed of 12 mph. If the current of the river has a speed of 4 mph, at what angle, and speed, must the

chemistry
If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this

math
a searchlight is shaped like a paraboloid of revolution. if the light source is located 5 feet from the base along the axis of symmetry and the opening is 8 feet across, how deep should the searchlight be?

science
Ethanol can also be manufactured from glucose, C6H12O6. C6H12O6 2CO2 + 2C2H5OH. A solution containing 18 kg of glucose makes only 0.92 kg of ethanol. Calculate the percentage yield of ethanol.

Eng
what is the job outlook of Adoption social workers?

Geometry
Directions: Find the measure of one interior angle in each polygon. The first given is a PENTAGON. (that's all) I am drawing a blank!

LA
In all of recent American history, there has been no worse river flooding than what occurred on the Mississippi River between late June and the middle of August in 1993. Record flooding affected communities from Minnesota to Missouri. Iowa and Illinois

Ethics in Criminal Justice
If we eliminate free will completely, we would also be eliminating: A. the possibility of genetic bases for human behavior. B. The value of modern science. C. Moral responsibility. D. Excuses for criminal conduct.

Chemistry
What mass of octane must be burned in order to liberate 5410 kJ of heat?

Business
What are some potential legal issues for a sports shop business?

math
two office towers are 31 m apart. From the top of the shorter tower, the angle of elevation to the top of the tall tower is 25 degrees . The angle of depression to the base of the taller tower is 31 degrees. Calculate the height of each tower

science
If you were riding on a train, which of the following would look as if it is not moving? the conductor walking by you a building you are passing a flying bird

math
pam served her apple pie on a 13 inch diameter dish. she wanted to tie a ribbon around the dish to make it a litlle more festive. how long does the ribbon need to be in order to fit around the dish

Math
Need help on how to solve this problem.. Five cards are chosen from a deck of playing cards and put into a pile. Three of the cards are red and 2 of the cards are black. A second pile is made using 2 red cards and b black cards. One card from each pile is

Chemistry
Can alcohol dissolve any of these? PCl5 NaNO3 NH3 KOH KCl

Algebra
$6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?

pol201
Question 2. 2. In Marbury v. Madison, the Supreme Court established the principle of constitutional review by (Points : 1) denying Marbury his right to sue. denying the authority of the President to have made his appointment. claiming that Section 13 of

physics 1
A person is sitting with one leg outstretched and stationary, so that it makes an angle of 30.0° with the horizontal, as the drawing indicates. The weight of the leg below the knee is 50.5 N, with the center of gravity located below the knee joint. The

Math
A company is planning to expand its business in a few years. New plant construction costs are estimated to be $4.75 per square foot. The company invests $850,000 today at 6% compounded quarterly/ a) How many square feet could be built in 3 1/2 years? b) If

Chemistry
A 3.4g sample of h2o2 solution containing x% H2O2 by mass requires x ml of a KMnO4 solution for complete oxidation under acidic condition. The molarity of KMnO4 solution is: a)1 b)0.5 c)0.4 d)0.2

calculus
The top and bottom margins of a rectangular poster are 6 centimeters each, and the side margins are 4 centimeters each. If the area printed on the poster is fixed at 384 cm2, a) Sketch the figure. b) Find the dimensions of the poster using the least amount

physics grade 10 icse
two balls of masses in ratio 1:2 are dropped from the same height find : a. the ratio between their velocities when they strike the ground and b. the ratio of the forces acting on them during motion

Algebra
Hockey teams receiver 2points when they win and 1 point when they tie. One season, a team won a championship with 64 points. They won 11 more games than they tied. How many wins and how many ties did the team have ?

Math
A disc jockey must play 14commercial spots during 1hour of radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1hour is 11 minutes, how many 30 second commercials were played that hour? How many 60

Math 10
Hello, I did this question for homework, but my teacher said it was wrong and she didn't explain how it was supposed to be done. So could you please tell me how I am supposed to do this step by step? "A baseball is thrown from the top of a building and

Math
Bobo bought a 1 ft squared block of cheese. He needs to cut it into 3 in. cubes. The block is yellow outside but green on the inside. How many 3 in. cubes does it have? How many of the cubes have no yellow face, one yellow face, 2 yellow face, etc. Please

Chemistry
Hello everyone I need your help at once. How many grams of CO2 are needed to neutralize a 5 L tank of water with a pH of 11.5? my answer is around 220 grams of CO2. is that true or not?

american national goverment
1. Locke’s use of the term “property” (Points : 1) serves to stress the absolute sanctity of property. serves as a defense against the arbitrary exercise of power and authority. dramatizes his commitment to natural law. means that a sovereign who

Math
Small painting has area of 400^2... Length is 4 more than 2 times width... Find the dimensions

math
Dave is going to leave academia and go into business building grain silos. A grain silo is a cylinder with a hemispherical top, used to store grain for farm animals. Here is a 3D view, a crosssection, and the top view. If Dave is standing next to a silo

SCI 207
Which of the following is not an environmental impact of conventional agriculture express.ed

math
Find the intersect point for the two equations: x = 2; y = 3

math
Julia had 150 fewer bonus points than Kelly.Bothgirls used tthe same number of bonus points. Julia was left with 1 out of 2 of her bonus pointand Kelly was left with 3 out of 4 of her bonus points.how many bonus did Kelly have at first

science
what is the momentum of a 20kg scooter traveling at 5.o m/s.?

science
what animal would have less momentum then a 52 kg cheetah running at 10 m/s.

science
why do people have a hard time moving a large rock out of the road

geography
consult a periodic table to find out what the symbols are for the following elements:silicon,aluminium,magnesium,iron,calcium and sodium

Science
Problem: What are parts of a cell and how are animal cells different from plant cells? Hypothesis: Can someone help me get a hypothesis?

math
Express z = 1 + 2j in polar form then find z^3 then convert the answer to Cartesian coordinates.

Math
Choose the most specific term that will make the following statement true. Do not assume anything more than the information given. I am a ____ because my opposite sides are congruent and parallel. square rectangle parallelogram rhombus

CULTURAL DIVERSITY
young children's functional use of language within a work context is often observed in ? i put D. native american cultures

Algebra
One canned juice drink is 20% orange juice! another is 5% orange juice. How many liters of each should be mixed together in order to get 15L that is 16% orange juice?

Math
Two blocks of mass 0.1 kg and 0.2 kg approach each other on a frictionless surface at velocities of 0.4 and 1 m/s respectively. If the blocks collide and remain together, calculate their joint velocity after the collision.

Math
A cyclotron produces a 100Î¼A beam of 15MeV deuterons. If the cyclotron were 100% efficient in converting electrical energy into kinetic energy of the deuterons, what is the minimum required power input, (in kilowatts)?

Math
In a certain 25W mercuryvapor ultraviolet lamp, 0.1% of the electric energy input appears as UV radiation of wavelength 2537 AËš . What is the UV photon emission rate per second from this lamp?

math
Find the scale factor troy will to build his pool. The width is 625cm. The olympic pool is 50m long and 25m wide. Then find the length using the scale factor of troy pool

math
find the 1st 4 numbers of the sequence 3 n + 5

Biology
Hi, I have several questions that I am not sure or do not know their answers. Lecturer gave the key words but I think there are some questions that do not have any answer among those key words. Please tell me whether the answer are correct or not. And tell

math
Define a new class Assistant that represent a faculty member who works a certain number of hours each month. In this case, the salary is computed by multiplying the working hours by the hourly payment rate. Create a new object of class Assistant and

Health Physics
1. Two blocks of mass 0.1 kg and 0.2 kg approach each other on a frictionless surface at velocities of 0.4 and 1 m/s respectively. If the blocks collide and remain together, calculate their joint velocity after the collision. 2. A cyclotron produces a

chemistry
A 200.0mL solution with 3.1 x 10^3 mol of MA will begin to precipitate at 19.4 C. Calculate each of the following at this temperature. a) Ksp b)change in G

English
I need to know the prepositions in the following question. The patient is a 42yearold male with a history of left shoulder osteomyelitis wit resistant pseudomonas from an injury he sustained approximately 20 years ago.

Chemistry Equilibrium
At 200 °C, Kc = 1.4 x 1010 for the reaction N2O(g) + NO2(g) 3NO(g) If 0.174 mol of N2O and 0.337 mol NO2 are placed in a 4.00 L container, what would the NO concentration be if this equilibrium were established?

Chemistry Equilibrium
For the reaction NO2(g) + NO(g) N2O(g) + O2(g) Kc = 0.914. Equal amounts of NO and NO2 are to be placed into a 5.00 L container until the N2O concentration at equilibrium is 0.0446 M. How many moles each of NO and NO2 must be placed into the container?

Science
what do you call it when there are few living things in an area? Extinguish?

Physics
Can someone help with the following physics problem? This is the only one I'm having trouble solving. Thanks. A 3.6mlong ladder leans against a frictionless wall as shown in the figure below. The coefficient of static friction between the ladder and the

math
Sally was making 3 sandwiches. there were only 10 slices. if she used 2 slices of bread to make each sandwich. what fraction of the bread did she use to make the sandwiches?

Criminal Justice
1. What is the "revolving door" concept? A. The concept that police only work with prosecutors when they are forced B. The concept that individuals on probation will just end up in prison C. The concept that offenders go to prison, get out of prison, and

Chemistry
The volume of 3.96g of a gas sample at standard conditions it was found to be 1.15L.Calculate its molecular mass.

Criminal Justice
1. Why is the role of the police in grand jury investigations important? A. Police officers often testify before grand juries in order to help make the case against a possible criminal defendant. B. Suspects always have the right to testify before the

MATH
Tome has twice as many toys as Luke, Together they hace 39 toys. How may marbles does Tom hae. This is what I have so far 39=L + T(2)

science
The volume of 3.96 g of a gas sample at standard conditions it was found to be 1.15 L.Calculate its molecular mass?

Criminal Justice
1. How do city police chiefs come to power? A. They are elected by voters in specific districts. B. They are appointed by the mayor or selected by the city council. C. They are promoted up through the rank system. D. They are appointed by the outgoing city

algebra
In 1990, the population of Africa was 643 million and by 2000 it had grown to 813 million. a.) Use the exponential growth model A=A0 e^kt, in which t is the number of years after 1990, to find the exponential growth function that models the data. b.) By

Math
Jackson jogged a total of 8 9/10 miles this week. His friends Aaron and Tanya jogged 4 3/4 miles and 9 2/5 miles respectively. How many more miles did Aaron and Tanya jog than Jackson?

algebra
Ln(x+3) Ln(x5)=Ln7

Math help
Elizabeth bought 3inch tomato plants at home depot. Each week after she bought the plants she measured their height. she recorded the data in the table below. Time(wks) 0 1 2 3 4 Height of tomato plants(in.)3 5 7 9 11 what is the Independent variable?

CHEMISTRY
Given that the structures of cocaine (on the right side of the equation) and its free base ( on the left side) with an H+ : a. Would you expect K for the cocaine to be greater or less than 1.0? Explain. b. Would K for the free base be higher or lower than

math
If A=3x+4 and B=x^2+2 and C=x^2+3x2, find the following: 1. AC+B 2. (A+B)(BC) 3. ABC

CHEMISTRY
Biosynthesis of proteins from amino acids is an energy driven condensation process (ÄH = + 10 kJ/mol) requiring energy input in the form of ATP. In an experiment, 0.4 mol of amino acids reacted to give a polypeptide and some ATP was consumed. a) explain

physical science
a ship is 850 m from a vertical cllff the ship sireN IS SOUNDED AN ECHO IS HEARD AFTER 5 SECOND CALCULATE THE SPEED OF THE SOUND FROM THE SIREN OF THE SHIP

math
what is tan(AB) if SinA=1/2, cosA>0, tanB=3/4 and sinB

Ethics in Criminal Justice
The power to make choices and engage in actions that originate with ourselves is referred to as: A. Free will B. Objectivism. C. Determination. D. Predetermination.

math
The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is a. 160 b. 163 c. 260 d. 272 e. 408 please answer and explain

math
There are 216 couples competing in a dance contest.After each half hour onethird of the contestants are eliminated. How many couples will remain eligible for the prize after the first hour? a. 24 b. 46 c. 48 d. 96 e. 98 please answer and explain

math
If there are 10 to 15 apples in a basket and there are 2 to 3 baskets in a bushel, what is the maximum number of bushels that can be filled by 900 apples? a. 20 b. 25 c. 30 d. 40 e. 45 please answer and explain

math
JILL NEEDS RIBBON TO WRAP GIFTS . THE RIBBON SELLS FOR $2 Per Yard , And Jill Needs 24 Inches Of Ribbon For Each Gift .Which equation could be used to find r , the amount of ribbon in yards , jill should purchase a. r = (36 Divided by 3)(24times2) b. r =2

physcis
Calculate the ratio of Rydberg value for doubly ionized lithium, a one electron atom with a nucleus of charge 3e, to that of hydrogen? Include the reduced mass effect for Li++ in your calculations.

math
A fish tank 1 feet x 1 1/2 feet x 1/2 feet is carefully used to fill a large tank which has a capacity of 15 cubic feet. How many times will the contents of the smaller tank be rquired to be emptied into the larger tank to completely fill the tank? a. 8 b.

General
What are some potential legal issues for a sports shop business?

MATH
HOW MANY MILES CAN MR THOMAS WALKS IN 30 DAYS IF HE WALKS 4 MILES AND 8 MILES EVERYDAY ?''.

math
A saleman operates a car which averged 15 miles to a gallon of gasoline.By installing a new carburetor the car improves its mileage by 1/5. How much will he save on gasoline during a year in which he covers 5400 miles, if the average cost of gasoline is 35

Chemistry
Calculate the molarity of 17.g of NaCl in 881 ml of solution

LA
3. In basketball, the most elite athletes would (1 point) be professional. become coaches. fail to make the team. have fun. 4. Read the sentence below. Based on the context clues in the sentence, which is the best definition for the italicized

math
A map measuring 8" x 10" and drawn to the scale 1" = 50 miles is pasted on a sheet of paper of the same size. Find theleast number of sheets of this paper that would have to be taped together to hold this same map if it were drawn to the scale 2" = 25

Calc III
Find the Jacobian of the transformation. x = 7v + 7w^2 y = 9w + 9u^2 z = 2u + 2v^2 ∂(x, y, z)/∂(u, v, w) ??

math
Maya chatted online with all her friends for 2/3 of an hour on saturday and 1/4 of an hour on sunday.During that time period she chatted with Paul for 1/8 of an hour. What fraction of the time Maya spent chatting with her friends online was spent chatting

Chemistry
I had conducted an experiment to figure out the percent by mass of baking soda in a mixture by titration. I had to standardize 1.0M HCl. Through the standardization process and the titration curve of the primary standard and the HCl, the molarity has to be

Chemistry
Given that the structures of cocaine (on the right side of the equation) and its free base ( on the left side) with an H+ : a. Would you expect K for the cocaine to be greater or less than 1.0? Explain. b. Would K for the free base be higher or lower than

math
The director of the center has asked you to design a garden. The director has asked you to design different sections of the garden that meet the following: Section 1 must be shaped like a square. Section 1 must have an area between 26 square feet and 50

math
A particle moves in a velocity field V(x, y) = If it is at position (x, y) = (1, 2)at time t = 5,estimate its location at time t = 5.01.

Math 203
At time t = 1,a particle is located at position (x, y) = (4, 3). If it moves in the velocity field F(x, y) = xy − 2, y^2 − 11 find its approximate location at time t = 1.06 (x, y) = ?

Chemistry  Science (Dr. Bob222)
At 25 degree C, a student adds 0.400 g of solid phosphoric acid to a beaker containing 500.0ml of water. After the solid is completely dissolved the student adds 20.0ml of a 0.995M sodium hydroxide. What is the pOH of the solution in the beaker?

american history
under America's second party system, the whigs stood for?

geometry
two concentric circles with center E, AB = 40 CD = 24, CD is perpendicular to AE, and AB is tangent at C. FInd AF AB is chord in big circle. CD is chord in little circle and C is center of AB.

Biology help please
In a cladogram, which organism would exhibit the most unique characteristics: the ancient ancestor or the most recently evolved species? I think it is ancient ancestor...?

physics
A small object is attached to the end of a horizontal spring at position x = 0. It is the pulled to position x = A and released. In one full cycle of its motion, the total distance traveled by the object is...

Math
Evaluate the following definite integral. 5(1 + 1/u + 1/u^2)du between, (5,7)

Chemistry
Zn(s)+2HCl(aq) >ZnCl2(aq)+Hx(g) How many millilters of 2.50M HCl(aq) are required to react with 3.95 of Zn(s)?

pol201
Question 1. 1. A district court is considered to be (Points : 1) a court that determines the validity of a law. a place where decisions from state courts can be appealed. a court to settle disputes between Congress and the President. a court of original

pol201
Which case established the precedent of the U.S. Supreme Court being able to strike down state laws as unconstitutional? (Points : 1) Marbury v. Madison McCulloch v. Maryland Fletcher v. Peck United States v. Nixon

pol201
Question 4. 4. A federal court is said to have a “federal question” jurisdiction because (Points : 1) federal courts supersede state courts. all laws are federal. they hear cases that touch the Constitution and other federal laws. they hear cases that

math
Sue has a list of 8 CDs and 5 DVDs that she wants to buy. Her friends randomly select one item to give her. What is the probability Sue's friend will select a CD? a DVD?

M A T H
A small plant manufactures riding lawn mowers. The plant has fixed cost (leases, insurance, etc.) of $48,000 per day and variable cost (labor, materials, etc.) of $1,400 per unit produced. The mowers are sold for $1,800 each. So the cost and revenue

sullavan
if you put me in to 7 equal groups whit 3 in 5 are left over , what number am i

Math
Josh's grandparents established a college fund for him when he was born. They deposited $8,200 into an account that earned 9.88% interest. Assuming Josh goes to college at age 18, how much money will he have if... a) ... the interest is calculated only

Math
Tom and Lana both need $15,000 in 3 years. Tom finds an investment in which he can earn 8% compounded annually. Lana finds an investment in which she earns 7 7/8% interest compounded monthly. Who must invest more money now in order to get $15,000 in 3

Math
Richard Simons is selling his house. He has a choice of taking $125,000 today or $135,000 in 6 months. If he takes the money today, he can invest it at Valley Bank at 5% interest compounded monthly. a) How much would be in the account after six month if he

math
Find all numbers that are not in the domain of the function. Then give the domain using set notation? F(x)=________17over xSquare+4x12

Math
Find the indefinite integral. (e^(9 x))/(2 + e^(9 x)) dx

statistics
the subway train has 18 doors and starts with 15 passenger. if each passenger is equally likely to get off at any station and the passengers leave the train independently, find the probability that 2 or more passengers leave the train through the same door

Calculus Help Please Urgent!!!
find the limit algebraically. Use L'Hospital's Rule where appropriate. If there is a moare elementary method, consider using it. If L'Hospital's Rule doesn't apply, explain why lim > 0 (cot(x)(1/x)) show work please!!!

Psy270
Individual Clinical Assessment Mr. and Mrs. Lawson brought their 4yearold adopted daughter, Clara, to see Dr. Mason, a psychiatrist. Clara was polite in greeting Dr. Mason, but did not smile and kept her gaze down as she took a seat. Mr. and Mrs. Lawson

Chemistry
If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this

Biology
How many calories are required to heat 10 ml of water from 25 degrees Celsius to 35 degrees Celsius?

sy270
What questions should I ask the parents of four year old Clara about her sudden change of behavior and refusal to go back to preschool.

chemistry
What is the density (in grams per liter) of a gas at STP if 4.16 L of the gas in a bulb at 43.7 °C, and 737.9 mm Hg weighs 0.262 g?

CALC 2
In the following series x is a real number. In each case, use the ratio test to determine the radius of convergence of the series. Analyze the behavior at the endpoints in order to determine the interval of convergence. a. Summation n=0 to infinity