Questions Asked on
April 22, 2013

Physics
Neglecting air resistance, how high could a 0.15kg baseball be thrown if it is throw straight up at a speed of 25m/s?
asked by Kevin 
Math
What is length of DF if DE and EF are equal and EF is 4 meters?
asked by Jay 
social development
what emotion male express more freely that female
asked by Alston 
math
solve the following inequality. 24x55
asked by sue 
chem
Which of the following solutions represent a buffer system? Select all that apply. Answer A. H2CO3 and HCO3 B. HNO2 and NaNO2 C. NH4Br D. Na2SO4 E. HClO4 and NaClO4 F. CH3COOH
asked by bj 
Child Develompment
_____ is the only emotion do males express more freely than females in everyday interaction?
asked by Alston 
physic30
Changing Momentum The illustrations show two ways of providing impulse to change the momentum of a vehicle. In the top illustration, the vehicle collides with a massive concrete barrier. In the bottom illustration, the vehicle collides with waterfilled
asked by alejandro 
Chemistry
I had to share a diagnostic procedure that I had done. I shared a breast MRI, in which I had contrast. Now I need to share on balanced chemcial equation related to this, and be sure to be specific. Can someone please help me??
asked by anonymous 
national governoment
why would Nullification would have had the effect of returning the nation to the Articles of Confederation
asked by Anonymous 
chemistry
predict which three of the following five aqueous solutions should react with solid aluminum metal (the elemental form of aluminum): AgNO3, Na2CO3, CuSO4, CaCl2, Pb(NO3)2
asked by Anonymous 
math
1)find the sum of the odd integers from 25 to 75 2)find the sum of the first 20 terms in the series 10+5+2.5+1.25... . please show the steps to solve the problem^_^
asked by sarah 
physics
suppose that there are 1.9*10^25 stars in the universe. how many moles of stars would this be?
asked by john 
math
I am a six digit number, all my digits are the same, the sum of all my digits after being subtracted from the largest six digit number is six, who am i
asked by srinidhi 
Organic Chemistry
A student dehydrated 12 grams of 2methylcyclohexene with 85% H3PO4. What are the theoretical and percent yields?
asked by Josh 
Organic Chemistry
A student dehydrated 12 grams of 2methylcyclohexene with 85% H3PO4. What are the theoretical and percent yields?
asked by Josh 
Statistics
An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: (Family) (Income)
asked by Jak 
Organic Chemistry
A student dehydrated 12 grams of 2methylcyclohexene with 85% H3PO4, and acquired 6.50 grams of alkene. What are the theoretical and percent yields?
asked by Josh 
Statistics
International Pictures is trying to decide how to distribute its new movie ‘Claws’. ‘Claws’ is the story of an animal husbandry experiment at the University of Southern Queensland that goes astray, with tragic results. An effort to breed meatier
asked by Jak 
anatomy/urgent
What is the functional advantage of the cat having so many muscles performing the same or very similar action? How does this relate to the human musculature?
asked by paul 
chemistry
Using the PM3 semiempirical method in HyperChem, treat planar napthalene. First build the molecule, choose SemiEmpirical methods and PM3, and perform a Geometry Optimization. Look in the "Compute>Orbitals" menu to determine the energies of the HOMO and
asked by muneer 
Chemistry
(NH4)2S+CuSO4=
asked by judy 
Chemistry
Need type of reaction and balance of (NH4)2S+CuSO4=
asked by judy 
Business Law and Taxes
Q. No.1.From the following information compute the Gross total income and taxable income of Mr. Murugan of Chennai. Income from Salary 1,20,000 Interest on Government security 20,000 Winning from lottery (Gross) 30,000 Dividend 40,000 Rent from house
asked by Oprakas 
Demand Planing and Forecasting
A retail outlet deals with a wide range of gift articles (ranging in unit value from Rs 100 to Rs 1000). Identify the various factors influencing the demand and sales for this range of gift articles. What kind of data inputs will be useful for this
asked by Omprakash 
Research Methodology
A hospital has treated of 500 patients suffering from a disease. Find whether the new treatment is superior to the conventional treatment: No. of patients Favourable Not favorable New 280 60 Conventional 120 40 Use chisquare test. (Note: Table value at 5%
asked by Vijay 
Quantitative Techniques
Q No. A company is seriously considering buying one type of machine that can save significant labor hours. The labor hour saved by the machine follows a normal distribution with mean = 2200 and a certain standard deviation. It is known that there is a
asked by Vijay 
Math (Percent discount)
With the holiday approaching, Nancy's Closet is having a sale, where all their clothes are 40% off. Mary, who works there, can get a further staff discount of 30% off the sale price. What is the total percent discount that Mary gets?
asked by Bob 
math
A man travels 4km due north,then travels 6km due east and further travels 4km due north .how far he is from the starting point.
asked by nripesh 
Life Orientation
Factors that contribute to HIV & AIDS
asked by Petunia 
statistics
from a normally distributed infinite number of iron bars lengths with a mean and standard deviation as 4 ft. and 0.6 ft. respectively, a sample of 100 bars is taken. if the sample mean is 4.2 ft., can the sample be called a truely random sample?
asked by aman 
Physics
Climbing to the top of Mount Everest is hard. But, it's slightly easier than you might think as people weigh less as they climb to the top. Let WE be a person's weight on top of Mount Everest and WS be their weight at sea level. What is the value of
asked by Bob 
Physics
If you've ever watched sailing, you will sometimes see a sailor hanging off the side of the boat, for example in this shot from the movie "The Thomas Crown Affair." Eventually, of course, the sailboat tips over so far that a person cannot keep it balanced.
asked by Bob 
math
there are 9 candidates running for 3 seats....how many different election results are possible
asked by mike 
Chemistry
25 mL 0.1 M acetic acid is titrated with 0.1 M NaOH. Calculate the pH after the addition of 0.0 mL, 1.0 ml, 2.5 mL, 4.0 mL, 7.0 mL, 10.5 mL, 15.0 mL, 17.0 mL, 20.0 mL, 22.0 mL, 23.0 mL, 23.5 mL, 24.0 mL, 24.25 mL, 24.5 mL, 24.75 mL, 25.0 mL, 25.25 mL, 25.5
asked by smartkid <33 
life Orientation
what are the health hazards of HIV AND AIDS and how does it affect our environment?
asked by Monki Moloisane 
chemistry
STANDARDISATION OF 0.1 M HCl Borax dissolves slowly in water at room temperature. Why do we not use a stirring rod to mix the solution and speed up this stage of the experiment?
asked by alex 
chemistry
15.0 mL of 8.00 M NaOH was diluted with water to 500 mL. Calculate the molarity of the diluted NaOH solution. My calculations: 0.015L x 8.00moles/1L x 39.997/1mole = 4.8g M= (4.8g x 1mole/39.997) / 0.500L = 0.24M is my workings correct? Is there another
asked by alex 
chemistry
Calculate the weight (in mg) of borax Na2B4O7.10H20 required to react with 25.0 mL if 0.100 M HCI No. moles HCl consumed = __________ moles No. moles borax required = __________ moles Molar mass of borax = __________ g mol1 (Na2B4O7.10H2O) Weight borax
asked by alex 
GED
2.) Sharon's share for lunch is $8. If she pays with a $20 bill, how much change should she get?
asked by Mustafa 
Maths
For how many odd positive integers n
asked by OIan 
chemistry
For each of the following primary standard acids, write the titration equation and calculate the volume of 0.100 M NaOH required for the titration: (i) 300 mg benzoic acid (C6H5COOH) (ii) 200 mg oxalic acid dihydrate (C2O4H2.2H2O) Equations: (i): C6H5COOH
asked by alex 
PHYSICS!!!!...PLEASE HELP
Ski boots are usually made with releasable bindings. This is done for safety – if you fall and your ski gets caught, the binding between the boot and the ski will release so the ski pops off rather than twisting your knee. Sometimes this leads to the
asked by HELP ME...uRGENT!...PLEASE 
physics
a block of a mass starts from rest and slides down a surface which correspnds to a quarter of a circle. if the curved surface is smooth, what is the speed at the bottom?
asked by mojalefa 
applied physics
an ironworker drops a hammer 5.25m to the ground. what is its speed as it hits the ground?
asked by donna 
applied physics
a sky diver jumps out of a plane at a height of 5000 ft. if her parachute does not open until she reaches 1000 ft, what is her velocity at that point if air resisitance is disreguared?
asked by donna 
physics
Calculate the pressure in newtons per square meter due to whole blood in an IV system, such as the one shown in Figure 6.9, if h = 1.5 m. (b) Noting that there is an open tube, so that atmospheric pressure is exerted on the blood in the bottle, calculate
asked by Anonymous 
statistics
When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation?
asked by Anonymous 
calculus
the function s(t)=(t^2+t)^2/3, t>0, represents the displacement s, in metres, of a particle moving along a straight line after t seconds
asked by kmk 
statistics
1. In a Gallup poll of 1,038 adults, 540 said that secondhand smoke is very harmful. What is the percentage of adults who said secondhand smoke is very harmful?
asked by Anonymous 
applied physics
a 5000lb truck is 20.0ft from one end of a 50.0ft bridge. a 4000lb car is 40.0ft from the same end. how much weight must each end of the bridge support?(neglect the weight of the bridge.)
asked by donna 
applied physics
two painters stand on a 10.00m scaffold. one,of mass 65.0kg, stands 2.00m from one end. the other, of mass 95.0kg, stands 4.00m from the other end. they share a paint container of mass 18.0kg located between the two and 2.50m from the larger person. what
asked by donna 
applied physics
the work required to lift eleven 94.0lb bags of cement from the ground to the back of a truck is 4340ft lb. what is the distance from the ground to the bed of the truck?
asked by donna 
applied physics
a gardener pushes a mower a distance of 900m in mowing a yard. the handle of the mower makes an angle of 40.0 degrees with the ground. the gardener exerts a force of 35.0 N alonf the handle of the mower. how much work does the gardener do in mowing the
asked by donna 
college physics
How many seconds would it take a 7.00hp motor to raise a 475 lb boiler to a platform 38.0 ft high?
asked by sean 
college physics
how long would it take a 4.50kW MOTOR TO RAISE A 175KG BOILER TO A PLATFORM 15.0M ABOVE THE FLOOR?
asked by sean 
Java Programming
Write a program that asks the users to enter five test scores into an array
asked by Caren 
physics
A particle is projected vertically upwards with velocity of u.after t seconds particle is projected from some point with same velocity.How long does it take for the second particle to meet the first particle?
asked by Anonymous 
maths
When pulled a 30 m piece of string streches 180cm.find percentage increasing length
asked by patrick 
agricultural science
outline and explain the objectives of fencing a farm?
asked by patrick matlholwa 
High School Diploma  Writing Skills
Pennfoster  Questions 1  20 I need to compare the answer. Please help.
asked by annoymous 
physics
A resistor with 780 is connected to the plates of a charged capacitor with capacitance 4.32 . Just before the connection is made, the charge on the capacitor is 7.80 1)What is the energy initially stored in the capacitor? 2)What is the electrical power
asked by samya 
chemistry
is there a chemical equation for gadolinium medium contrast?
asked by HeatherPlease help 
philosophy
Hello I am to write a three page paper that identifies a current event or a contemporary social issue that involves ethical values.I have chosen to write about abortion. For my pro choice argument I have chosen existentialism. And for the prolife argument
asked by angela 
physics
A ﬂat coil of wire consisting of 56 turns, each with an area of 39 cm^2, is positioned perpendicularly to a uniform magnetic ﬁeld that increases its magnitude at a constant rate from 3.1 T to 10 T in 5.7 s. If the coil has a total resistance of 0.56
asked by Jenna 
Physics
A coil with 347 turns of wire, a total resistance of 49 Ω, and a crosssectional area of 0.28 m2 is positioned with its plane perpendicular to the ﬁeld of a powerful electromagnet. What average current is induced in the coil during the 0.31 s that the
asked by Jenna 
physics
Thunderstorms can have an electric ﬁeld of up to 341 × 10 ^5 N/C. What is the magnitude of the electric force on an electron in such a ﬁeld? The fundamental charge is 1.6002 × 10^−19 C .
asked by Jenna 
math
n and m are positive integers that satisfy n^3+2n^2=m^2. If 1≤n≤1000, how many possible pairs of (n,m) are there?
asked by er 
Computers
In Python  A state creates license plates, each containing two letters followed by three digits. The first letter must be a vowel (A,E,I,O,U), and duplicate letters and digits are allowed. The second letter can be any letter of the alphabet. The state
asked by Sheryl 
English 8th class
why polo is called king of the game?
asked by Anonymous 
Chemistry
How much energy, in kj, is absorbed by 23.8g of acetone when it evaporates if its molar heat of vaporization is 32.0 kj/mol?
asked by Jill Hoff 
math
If pam as 100 dimes and nickels,that equals $14.05. How many quarters does she have?
asked by Isaias 
Principles of Management
Question 1 of 20 5.0 Points Which of the following is NOT a benefit of planning? A. Helps you check on your progress B. Helps you think ahead C. Helps you cope with uncertainty D. Helps you compare your results to a standard Reset Selection Question 2 of
asked by Joel 
Math
An equilateral triangle ABC has AB=20√3. P is a point placed in triangle ABC and D,E and F are the foot of the perpendiculars from P to AB, BC and AC, respectively. If PD=9 and PE=10, what is the value of the length of PF? Please work the complete
asked by Watson 
algerbra 2
3 · u · 7v + 8v  6uv
asked by Anonymous 
maths
If a= 3 +2 root 2 , then find the value of a^2  1/a^2 ????
asked by tuhituhi 
Math
A car moving at 4.5 m/s accelerates at 2.5 m/s square. How fast will it be moving after 7.5 seconds ?
asked by Aayushman 
Math help
A gas station charges $2.19 per gallon of gas. Use function notation to describe the relationship between the total cost C(g) and the number of gallons purchased g. C(g) = –2.19g g = 2.19C(g) C(g) = g + 2.19 C(g) = 2.19g Please tell me the explination
asked by Mr.Brain 
life orintation
Recommendations on how to address. Teenage pregnancy
asked by mpumie 
Life orientation
In 1015 lines critically discuss 5 ways in which the Environment problem impacts on the community.provide relevent sources to support your claims.
asked by Rosemary 
Physics
Calculate the magnitude of the magnetic ﬁeld at a point 43.6 cm from a long, thin conductor carrying a current of 1.24 A. The permeability of free space is 1.25664 × 10^−6 T · m/A. Answer in units of T
asked by Like a Boss 
Art Appreciation
Compare Raphael's School of Athens with Veronese's Christ in the House of Levi. How did each work reflect the environments of Rome or Venice?
asked by kendra 
Life orientation research
20 ways in which fire impact the community
asked by Biyela zanele 
Chemistry
Suppose you wanted to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.88 g of pure AgNO3. a. What is step 1 in solving the problem? b. What is the molar mass of AgNO3? c. How many milliliters of solution are needed?
asked by Somer 
Life orientation
Recommendation on how to address fire
asked by Biyela zanele 
Math
A spinner has three congruent sectors colored orange, green, and purple. Every spin has has 1/3 chance of landing on any color and there is 1/9 chance of landing on orange and then on purple. There is 1/3 chance of landing on same color twice in a row. I
asked by Cherie 
Life orientation
Discuss 5 ways in which the human or environmental problem impacts on the community.
asked by Thomas 
life orintation
Recommendations on how to address. Teenage pregnancy
asked by mpumie 
chemistry
if burning one mole releases 1310.0 kj, then how many moles will release 227.30?
asked by suzy 
Probability?
A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. Find P(red, then blue).
asked by Katie 
chemistry
how many milliliter of .750M sulfuric acid are needed to neutralize completely 20 g of NaOH?
asked by xavier 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or invironmental problem impacts on community (HIV/AIDS)
asked by Ntombenhle 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or invironmental problem impacts on community (HIV/AIDS)
asked by Ntombenhle 
Science Help! Ms. Sue Please!
8. Which of the following explains why the chemical products from a reaction have a different mass than the chemicals at the beginning? The products are heavier and sink. The products are lighter and rise. The products are a gas and escape into the air.
asked by Sarah 
Life orientation
Provide recommendations on how to address aids
asked by Rosemary 
english
who is the author of the story the ghost got in
asked by raasha 
Computers
What is Snapshot Tracking Search Patterns?
asked by Tameika 
life orientation
5 recommend ations on how to adress the environmental problems with in your community or any other community wi thin south afri ca and globally
asked by prudence simelane 
Math Ms Sue??
What is the formula to find the diamter of a given circumference?
asked by Tamara 
Logarithms
if loga(b)=1/48 what is the value of logb(a^2) ?
asked by Tony 
Math question
Does d =2/r relate4s to the measures of the diamter and radius of a circle? or d= r/2 ? I think the first one I said.
asked by Tamara 
chemistry
What is the osmotic pressure in torr of a 0.0155 M glucose solution at body temperature ( 35.7 °C)? What are the boiling and freezing points for the same solution?
asked by Ali 
Physics
Visitors at a science museum are invited to sit in a chair to the right of a fulllength diverging lens (f1 = 3.3 m) and observe a friend sitting in a second chair, 1.94 m to the left of the lens. The visitor then presses a button and a converging lens
asked by tommm 
Agricultural science
What are the important features of a building which could be used as a milking shed (parlour),diary (milk room) and food store to ensure production of clean fresh milk?
asked by Keorapetse 
Life orientation
Provide recommendations on how to address the Hiv/aids
asked by Shonisani 
Life orientation
Community organizations that are involved in supporting,how these organizations are involved
asked by Shonisani 
Life orientation
Impact of(hiv/aids)identified environmental hazard on the community
asked by Rosemary 
english
(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventhgrade science, I have some experience with the faces
asked by nena 
Economics
Would leisure time considered an inferior good when the substitution effect dominates? I think that the answer is yes because if you are willing to work more hours in order to make more money than you do not value leisure time that much. Is this correct?
asked by Hannah 
english
What kind of fallacy are these 2 examples? 1. "Fresh fruits and veggies make life better." 2. "Fairway coffee is the essence of life itself."
asked by Rachel 
Education
A term referring to perspectives on children’s development that emphasize the importance of cultural influences is A) cultural constructivism. B) ethnoconstructivism. C) social constructivism. D) anthropological constructivism. I believe the answer is C,
asked by Lor 
english
The Call of the Wild is a story about a dog named Buck. Buck is a pampered dog who lives with a wealthy family in southern California. During the Gold Rush, Buck is captured, sold, and eventually shipped to Alaska to work as a sled dog. Along the way, Buck
asked by nena 
Math
A 15g sample of radioactive iodine decays in such a way that the mass remaining after t days is given by m(t) = 15e^(−0.051t), where m(t) is measured in grams. After how many days is there only 3 g remaining?
asked by Zach 
Algebra
Which inequality represents the solution set for the compound inequality below? 3
asked by Shevani, help me 
math
Suppose that a vegetable vendor pays 7% interest daily on a $10 loan. Then, suppose that this individual was able to save $0.50 per day by drinking less tea. Calculate the number of days it would take for the vendor to no longer need to borrow money in
asked by cevin 
Chemistry 110, college
A solution is prepared by dissolving 56.5g of ethylene glycol in 874 g of water. Calculate the change in the boiling point and the freezing point.
asked by Holly 
Education
It is not necessary for teachers and parents to maintain a close relationship for successful inclusive teaching to take place. A) True B) False I believe the answer is false, but wanted a second opinion.
asked by Lor 
Life oriantation
In 1015 lines critically discuss 5 ways in which the human or environmental problem(pollution)impacts on the community
asked by Majoro 
physics
why we find a wave form in a floating flag
asked by Anonymous 
College: Diversity Education
A term referring to perspectives on children’s development that emphasize the importance of cultural influences is A) cultural constructivism. B) ethnoconstructivism. C) social constructivism. D) anthropological constructivism. I believe the answer is C,
asked by Anonymous 
anatomy
how to write an essay on the importants of diet and exercise?
asked by bryonna 
Algebra
How are the processes of adding monomials and adding polynomials alike? How are the processes different?
asked by Casey 
english
Detective Simon Levant had the unconscious habit of caressing his moustache while pondering evidence. 19. Which element of an effective fictional narrative does this sentence best represent? A. Plot B. Characterization C. Theme D. Conflict
asked by no 
Chemistry
Lead can be extracted from lead(II) sulfide, PbS, in two stages. Stage 1: Lead(II) sulfide is heated in air. It reacts with oxygen to produce lead(II) oxide and sulfur dioxide. Stage 2: The Lead(II) oxide is then heated in a blast furnace with coke. (a)
asked by Qindan 
Biology immediate help! please!
Need help please don't understand these questions. Dihybrid Genetic Crosses for Corn. A. What are the two hypotheses that you made about the allelic frequencies of progeny produced by the crosses: P x P? P F1 x F1? F B. Based on what you know about
asked by TIna 
life orientation
Eight ways in which poverty impacts the community in south Africa
asked by Reratilwe 
Chemistry
The equation for the reaction that occurs when lead(II) oxide is heated with coke in a blast furnace is: 2PbO+c >2Pb+CO2 (i)State, with a reason, whether PbO is oxidised or reduced in this reaction. (ii)Calculate the minimum mass, in tonnes, of coke
asked by Qindan 
Physiology Midterm exam
1 List at least 5 most striking morphological and functional characteristics of nerves tissue make it different from other tissues? 2 Point out the advantages and disadvantages of chemical synapses as compared to electrical ones. Where in the human body
asked by Physiology 
to Anonymous or Lor or whoever
Do NOT put a tutor's name where YOUR name should be. That's impersonation, and it will not be tolerated.
asked by Writeacher 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impacts on the community. Provide relevant sources to support your claims.
asked by Ndidzulafhi 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impacts on the community. Provide relevant sources to support your claims.
asked by Ndidzulafhi 
science
Explain how heat is transferred between a hot and a cold object by conduction — for example, a warm foot on a cold floor.
asked by Boobear 
physics
4(a) What is the magnitude of the gravitational force of the Earth on a surveillance satellite of mass 1040 kg that is in a grazing circular orbit 100 km above the surface of the Earth. (b) Find the magnitude of the acceleration of a satellite in such a
asked by joey 
HITT
The doctor is dictating, "He was the 8 lb 1 oz product of agolz." Agolz is what it sounds like.
asked by Suzi 
Algebra (logs)
Please help, I need help on these two problems. Solve the equation. log3(x − 16) = log3(9x) e^1 + ln(7) It appears on the homework that the ln(7) is written like this ^ln(7) but I am still stuck on it. Thanks!
asked by Karl 
math
what is 25/50 pleaes reduce to the lowest term
asked by debra brwwn 
maths
In an AP the first term is 2 and the nth term is 29 and the sum of the n term is 155 find n
asked by John 
maths
the simple interst on $480 after 2 years is $72. the rate percent per annum is
asked by naral 
english
write your points for or against the motin which states that 'excessive self confidence is indisputably a boon and not a bone .750 words
asked by John 
math
a post is driven into the ground. the first strike drives the post 30 inches into the ground. the next strike drives the post 27 inches into the ground. assume these distances form a geometric sequence, what is the total distance the post is driven into
asked by Anonymous 
math
a post is driven into the ground. the first strike drives the post 30 inches into the ground. the next strike drives the post 27 inches into the ground. assume these distances form a geometric sequence, what is the total distance the post is driven into
asked by Taylor 
Math PLEASE HELP!
I am really struggling with these questions. Any help is appreciated. Approximate x to three decimal places. log x = 3.5829 log x = 0.6703 log x = −1.5959
asked by Eric 
math
If a prism was filled with 43 cubes with half unit side lengths. what is the volume of the prism in cubic units?
asked by sydney 
Math
Add and convert 44/5 + 33/5=
asked by Tim 
Social studies(Mrs.Sue Please Help)
Can someone tell me what are context clues are? Can you give me some examples? Thanks if you help:)
asked by Kim 
College Chem
charles law: 7.89 l sample of gas had pressure of 850 torr. what volume will it occupy if the pressure is changed to 457 torr? (torr is a measurement of pressure. 760 torr = 1 atmosphere
asked by judy 
geometry
which pattern blocks can be combined to make the shape rhombus?
asked by Mrs. Vargas 
Calculus
Part I The change in annual revenue in thousands of dollars for the Ozark Zip Line Corporation has been modeled by the function. R(x) = 8.2x^2 + 23.1x where x is the number of years after 2000. To find the total revenue gained between the years 2002 and
asked by Roland 
algebra
how do you make a stemandleaf plot for numbers like this: 24,000 28,000 26,000 32,000 30,000 41,000 27,000 22,000 26,000 33,000
asked by s 
math
What fraction is equivalent to 14/22
asked by sam 
physics
In a series circuit, the voltage across the resistor has an amplitude of 10 V. Across the inductor it is 25 V and across the capacitor it is 9 V. To the nearest tenth, what is the amplitude of the voltage across the whole group?
asked by hannah 
english
what are the different kinds of nouns for 7th grade and what do they mean? ms. sue if you can may you help me????
asked by lola 
CHEMISTRY
Suppose a student adds 25.00 mL of 1.025 M HCl to a 1.50 g antacid tablet. The student boils and then titrates the resulting solution to the endpoint with 0.4969 M NaOH. The titration requires 21.3 mL NaOH to reach the endpoint. How many moles of HCl were
asked by Sarah 
algebraword problem
20012005 number hours user spent on the internet each week increased 110% by hours. This percent increased amount to 11 hours. Find the average number of hours that a user spent on the internet in each week in 2001 and 2005. Having problems with setting
asked by Deb 
math
Round 398,669.6 to the nearest whole number.
asked by Anonymous 
Physics
a simple pendulum consists of a 1.5 kg mass connected to a cored without and mass or friction. Initially the pendulum is vertically positioned when a 2.0 kg mass collides with ie, causing the pendulum to displace vertically upward 1.25 m. After the
asked by Natalia 
math
What am I? I have four digits is 1. The product of my digits is 0
asked by justin 
psychology
what makes social psychology unique in terms of social science
asked by slomomo 
math
if the perimeter of a rectangle is 140m what would the length and width be
asked by denny 
math
Harry planned a rectangular garden that was 40 feet long and 10 feet wide. A. What was the perimeter, in feet, of the garden that Harry planned? B. What was the area in square feet, of the garden that Harry planned? C. Suppose Harry decided to change the
asked by Anonymous 
math
how do you calculate the area of a net
asked by Anonymous 
CHEMISTRY
If a tablet contains 129 mg of Mg(OH)2 and 505 mg of CaCO3, how many moles of HCl would theoretically be neutralized?
asked by Jo 
Math
The sunglasses that Ramon wants to buy are 50% off the original price of $85. If he has to pay 6% tax, what will the glasses cost? Please help me by answering and explaining.
asked by Anonymous 
science
If the current in a wire is at 0.5 A and the voltage is measured at 100 volts, what is the resistance in the wire? Show all work and include the proper units.
asked by Anonymous 
chemistry
how many moles of sand were reacted when you process 100 g of sand and produce 51.4 g of silicon carbide
asked by daniele 
geometry
What shape will you always get when you combine a trapezoid pattern block and a triangle pattern block?
asked by Mrs. Vargas 
geometry
What shape will you always get when you combine a square pattern block and a triangle pattern block?
asked by Mrs. Vargas 
Find the function
Find the function that is finally graphed after the following transformations are applied to the graph of y=√x in the order listed. 1) Reflect about the xaxis 2) Shift up 7 units 3) Shift right 4 units
asked by Karlee 
Chemistry!!
A chemist wants to prepare a stock solution of H2SO4 so that a sample of 20.00mL will produce a solution with a concentration of .50 M when added to 100.0mL of water. A)what should the molarity of the stock solution be? B)If the chemist wants to prepare
asked by Anonymous 
momentun
A small steel ball B is at rest on the edge of a table of height h=1m. Another steel ball A, used as the bob of a simple pendulum also of length h=1m, is released from rest with the pendulum suspension horizontal, and swings against B as shown in the
asked by Anonymous 
physics
Assume that you have two objects, one with a mass of 5 kg and the other with a mass of 20 kg, each with a charge of −0.012 C and separated by a distance of 9m. What is the electric force that these objects exert on one another? Answer in units of N
asked by Anonymous 
analytical chemistry
chemical equilibria involved in precipitation reaction
asked by rose 
Physics/Astronomy
Predict the size of the image of Jupiter if photographed at opposition with a lens having a focal length of 9600 mm ( Assume Jupiter is a disk of 1.43 x 10^5 km and is 6.29 x 10^8 km from the earth).
asked by Blake 
Chemistry
If the hydrogen volume reads 8.35 mL, what number of moles does the represent at STP (1 atm and 0oC)? How many moles of electrons were added to the solution to create 8.35 mL of hydrogen gas?
asked by Anonymous 
Math
There are 8 pencils in a package. How many packages will be needed for 28 children if each child gets 4 pencils?
asked by Taytay 
calculus
Let f(x)=3x^2+x+3/2x+1. What is the derivative of f with respect to x
asked by lisa 
CHEMISTRY
What mass of NaCl is required to precipitate all the Ag ions from 20 mL of .100 M AgNO3 solution
asked by CIndy 
Algebra 1
1.Simplify the expression below (2w^3)^5 / 8w. What is the value of the exponent on "w" ? 2.Simplify the expression (4x^2  3x +1)  (x^3 +2x +7). What is the coefficient of the x term in the simplfied expression? 3. Jack Watson is wroking in a lab making
asked by Shevani, help me 
ANATOMY
What is the functional advantage of the cat having so many muscles performing the same or very similar action? How does this relate to the human musculature? Can someone help me? please
asked by paul 
Cost Accounting
Miller Ltd has been considering the purchase of a new machine. The existing machine is operable for three more years and will have a zero disposal price. If the machine is disposed now, it may be sold for $35,000. The new machine will cost $180,000 and an
asked by Keyano 
english
is correct to say "the patient was brought to the operating room." ? "was brought" seems awkward. Instead, "the patient was taken to the OR."
asked by greg 
Trig
Rewrite 2x^2 + sqrt(3)xy  y^2 +2 = 0 with the xy term eliminated. Round terms to nearest hundredth.
asked by Lost One 
percent increase
If you increase 7,500 by 15%, how much would you have?
asked by Captain Obvious 
Precalculus with Trigonometry
Calculate the work done by gravity as a 10 kg object is moved from point A = (0,0,0) to point B = (1,2,0). We are given s = (x sub f  x sub I)x(hat) + (y sub f  y sub I)y(hat) + (z sub f  z sub I)z(hat). Sorry if that doesn't make sense. I think I have
asked by Natalie 
U.S/history AP
a Treaty provision that the colonies of the central powers wentunder the control of the Allies,to be administered so that they could become independent at some later(never set)date. is not Treaty of Versailles,what coul be? can you help me?
asked by joy 
Math
What is the difference between the number of possible answers on a five question truefalse test and a five question multiple choice test withfour choices per question
asked by Praphul 
Math
What is the difference between the number of possible answers on a five question truefalse test and a five question multiple choice test withfour choices per question
asked by Praphul 
Algebra 1
What is an equation of a line perpendicular to the line with equation y = 1  3x a.y=3x + 5 b. y=3x + 5 c.y=1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= 6 5x  3y = 16 a. substitute 4y6
asked by Ley 
Trig
Convert 2xy = 1 to polar form.
asked by Lost One 
math
I need 2 three digit numbers that total 16848
asked by julia 
Health
Can you please Analyze the health impacts of the second stage of stress (Resistance?
asked by John 
MATH.
7=25m; m= X+ 0.054= 1.802; x= If u can help me out or answer these for me u arr awesome and thank you.
asked by Audrey 
Physics
In a photoelectriceffect experiment it is observed that no current flows unless the wavelength is less than 570nm . A)What is the work function of this material? W0= in eV B) What is the stopping voltage required if light of wavelength 420nm is used?
asked by Allen 
physics
A gammaray photon produces an electronpositron pair, each with a kinetic energy of 275keV . What was the energy of the photon? E=in MeV What was the wavelength of the photon? wavelength in m Please help thank you!
asked by Allen 
Fact & inference
Please check if these are correct: 1)King Alfred of England invented the candle clock [fact] 2) People had to keep replacing the candles [inference] 3) The candle clock had a lantern over it [inference] 4) Rooms in 870 A.D were probably drafty [fact?]
asked by Celest 
constitution/essay
Write your paper about a hypothetical proposal that is before the elected school board for the public schools in your city. The proposal stirs deep controversy in the community. Opponents claim that it would violate the Constitution’s prohibition against
asked by Sarah 
percent decrease
So, would it follow that 14.5 decreased by 4% would be 14.5 times .96?
asked by Captain Obvious 
Physics
Photons of energy 12eV are incident on a metal. It is found that current flows from the metal until a stopping potential of 8.0V is applied. What would happen if the wavelength of the incident photons was tripled? Would the energy be 4eV,so 12/3=4, and
asked by Sheila 
Math
A gerbil in a maze has 6 places at which to turn left or right.How many different ways can the gerbil get through the maze?
asked by Praphul 
Health
What physical changes do individuals encounter at the first stage of stress (alarm)?
asked by John 
math
what is the formeral for square meters?
asked by Anonymous 
physics
Someone on a glassbottom boat shines a light through the glass into the water below. A scuba diver beneath that boat sees the light at an angle of 17 degrees with resoect to the normal. If the glass's index of refraction is 1.5 and the water's index of
asked by Taylor 
Physics
When UV light of wavelength 295nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.50eV. What is the work function of the metal? W0 in eV Please someone help me out. Thank you.
asked by Sheila 
math Ms Sue help??
Calculate the area of the trapezoid, which is not drawn to scale. Is this formula right? A = (5+4) x 11/2 =49.5 Paraell sides are 8 in and 11 in. top is 5 inch bottom is 4 in. Wtih two little boxes on each side. Please help me understand ?
asked by Tamara 
Study?
I have to take a test tomorrow on math to decide whether or not I can make it into the next grade same for tomorrow for reading. What should I do to study? I don't have a textbook to study cause it's at school. Should I look over my notes on everything I
asked by Anonymous 
Math help another
Find the area of the composite figure. Square with missing top corner. 12in prarel to 10in top 14in bottom 20in. All of little boxes on the three showm corners. I did this. Find area of rectangle A= lxw 14 x 12 = 168 in. Find triangle area A = 1/2 x b xh
asked by Tamara 
Math
The school bus stops at Randy's stop at 8:15 a.m. Randy arrived at the bus stop at quarter after 8. Did he miss the bus? Explain.
asked by Quan 
Math
Doug is standing at (2,1). Susan is standing at (1,2). Who is farther to the right? How do you know?
asked by Thea 
math
Sean's older brother is 16 years old. He runs between 15 and 25 miles each week. The sum of the digits of the total number of miles that he ran last week is eight less than his age. How many miles did Sean run last week?
asked by Gaby 
Optics
Predict the size of the image of Jupiter if photographed at opposition with a lens having a focal length of 9600 mm ( Assume Jupiter is a disk of 1.43 x 10^5 km and is 6.29 x 10^8 km from the earth).
asked by Blake 
physics
You stand 5.2 meters away from a spherical mirror and your image forms 6.3 meters away on the front side of the mirror. What is your magnification?
asked by Michaela 
Physics
A light ray traveling through air strikes a smooth, flat slab of crown glass at an angle of 30 degrees to normal. Index of refraction for crown glass is 1.66. What is the angle of refraction?
asked by Brandon 
math ASAP please
4. What would the graph of y = x^2 + 1 look like? (1 point) a straight line a parabola a dotted line none of the above 5. What would the graph of 10/x look like? (1 point) a straight line a parabola a curve none of the above 6. What would the graph of y =
asked by Delilah 
Math
Simplify: 2x^3y^2=4x^2z / 2x^4
asked by Janae 
Math
Solve. x+12/x+4 = x/x+8 A) x=4 B) x=8 C) x=6 D) x=6 thinking that it's B.. help?(:
asked by Maddy 
Math
Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and range
asked by Veronica 
Math
What is 538 divided by 63
asked by Morgan 
Algebra
Which algebraic expression is equivalent to the expression below? 11(8 + 3x) + 20
asked by Poe 
Math
Solve. 10/3x + 4/3 = 7 + x/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 thinking it's A.. help?(:
asked by Maddy 
Math
Mr.Brown is building a slide for his kids. The ladder is 3 meters tall ad the slide is 5 meters long. What is the distance between the ladder and the bottom of the slide?
asked by Anna 
Pre Calculus
If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear velocity?
asked by Deontre 
Medical Billing & Coding
1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD10CM B. ICD9CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62yearold woman who was admitted to the
asked by Evelyn 
Physics
A rock is dropped from a bridge that is 45 m above the water. It falls directly into a model boat, moving with constant velocity, that is 12 m from the point of impact when the key is released. What is the speed of the boat?
asked by shy 
math
what is the slope and yintercept for y=2/3x 4.3
asked by kathy 
chemistry/Ksp
It is more accurate to report a single value OR a range of values for Ksp?
asked by ANNA 
geometery
Formula to find the area of a composite figure of a square and a triangle?
asked by Tamara 
Chemistry
Net Ionic Equation for reaction between bromide and silver nitrate
asked by Teresa 
physics (Newton's Law of gravitation)
I need help with this question until the end if you can, please. Thank you. A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×10^30 kg and the black hole has a mass of
asked by Kathy PLEASE HELP 
4th grade math
4 1/4 minus 1 3/4
asked by jordyn 
Math
Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?
asked by Anna 
Physics Eletric fields and coulomb's law)
Please, I need the development and correct answer for this problem. I would really appreciate it. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads
asked by Kathy PLEASE HELP 
Operations Research
The Ploughman family farm owns and operates a 640acre farm that has been in the family for several generations. The Ploughman’s always have had to work hard to make a decent living from the farm and have had to endure some occasional difficult years.
asked by Meme 
Per Calculus
A surveyor is standing 50 feet from the base of a building. The angle of elevation to the top of the building is 60 degrees. Approximately how tall is the building?
asked by Deontre 
math
a man and a woman get into an elevator in the basement of a building. The elevator can let them off at any floor from 1 to 9. What is the probability that they both get off on the same floor?
asked by Anonymous 
Math
Solve. 10/3x + 4/3 = 7 + x/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6
asked by Karis 
Physics/Optics
What would the image size of the moon be if you photographed it at Cassegrain focus of a 24inch telescope with a focal length of 9600mm?
asked by Blake 
Business mathematics
randy had saved 5000 in an account that offered r% simple interest per annum on 20 march 2008. If the interest on 6 june 2008 was 40, find the exacttime of the investment
asked by Vicky 
Math
Solve. 10/(3x) + 4/3 = (7 + x)/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 help??
asked by Amanda 
algebra
6 ways to make 18
asked by lucero 
math
What is a unit price?
asked by sophie 
Pre Calculus
If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear velocity? A. 0.62 feet per second B. 0.31 feet per second C. 37.68 feet per second D. 3.14 feet per second E. 9.42 feet per second
asked by Deontre 
Per Calculus
An apple pie has a 12 inch diameter and the angle of one slice is 60 degrees. What is the area of that slice of pie? Use 3.14 for A. 14.13 square inches B. 75.36 square inches C. 36 square inches D. 18.84 square inches E. 0.52 square inches
asked by Deontre 
maths
choose the correct operations to make this statement true;1000[?]81[?]190=10
asked by ninjini 
Math
Solve. 10/(3x) + 4/3 = (7 + x)/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 help??
asked by lynn 
social studies
how were the cultural ideals of the renaissance reflected in literature?
asked by Anonymous 
Algebra
The graph of y=x^23x+6 has how many intercepts? (the term x^2 means x squared)
asked by Kristy 
Algebra
What is the maxima and minima of a parobola?
asked by Jane 
algebra
Solve. 10/(3x) + 4/3 = (7 + x)/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 PLEASE HELP MRS. SUE!
asked by lynn 
math
for every 30 feet you descend in a cave, it gets 4 degrees colder. if you are at 8 degrees, how far have you gone. how do you write the equation?
asked by Anonymous 
math
a car moving at 4.5 m/s accelerates at 2.5 m/s2. How far will it be moving after 7 seconds.
asked by Aayushman 
government
Is fiscal policy the same thing as a fiscal cliff? If not, then how do they differ? Also what are some important policies in foreign countries that affected citizens their citizens?
asked by K 
Science
How do I calculate between the race of two automobiles in kilometer speed this is a 8th grade science question
asked by Alexsi 
Algebra
Drum major tosses the baton into the air from height of 6feet and initial velocity of 45 ft/sec. What is max height? We are to use ht=h+vt1/2at^2
asked by Julie 
Math
What figure has an infinite number of lines of symmetry?
asked by tj 
math
As part of a new fitness plan, Sabir runs on a treadmill at the same speed for 15 minutes every morning. The table shows the calories he burns over time. Time (in minutes) Number of calories Burned 3 15 6 30 9 45 12 60 Write an equation to represent the
asked by peter 
pre calculus
what is 36.1 and 50.8 rounded to three decimal places? I was never really good at this stuff....please help!
asked by terry 
math
As part of a new fitness plan, Sabir runs on a treadmill at the same speed for 15 minutes every morning. The table shows the calories he burns over time. Time (in minutes) 3 , 6, 9, 12, Number of calories Burned 15, 30, 45, 60, Write an equation to
asked by peter 
algebraic expressions
If a billiard table is x feet, write an expression involving x that represents its length
asked by Anonymous 
PreCalculus
Could someone check my answers? 27. (16/9)^2/3 = 64/27 28. (49/25)^3/2 = 343/125 31. (64)^2/3 = 8 32. (8)^4/3 = 1/16 or 1/16
asked by Caroline 
anthropology
im needing help with an assignment that is due tonight by midnight
asked by pam 
algebra
If a billiard table is x feet, how do I write an expression involving x that represents its length?
asked by Anonymous 
Math
The invested in a bank savings accouint is coumpounded continousl, with an annual interest rate of 3%. If a deposit of $2000 is made, then determine the balance after 2 years
asked by Emily 
Quantum Physics
What is the maximum value of the wavelength of light that will ionize the hydrogen atom? Express your answer in units of nanometers.
asked by qwerty 
math (anybody can answer this,my son homework, i )
As part of a new fitness plan, Sabir runs on a treadmill at the same speed for 15 minutes every morning. The table shows the calories he burns over time. Time (in minutes) 3 , 6, 9, 12, Number of calories Burned 15, 30, 45, 60, Write an equation to
asked by peter 
Aviation structures
during landing the leg is subjected to a vertical load of 10,000N, and a drag load 3000N,
asked by Ryan 
CHEMISTRY URGENT!
alpha emission by plutonium 242 write a nuclear equation
asked by jinie 
chemistry
if calculating molecular weight of unknown by freezing point depression...All of the unknowns in the activity were nonpolar organic molecules with molecular weight= 100250 g/mol and using around 1g of the unknown. Provide an example of a solvent that
asked by JENNA 
algebra1
joe and jim are picking oranges in an orange grove.joe can fill his sack with oranges in 20 minutes.Jim can fill his sack with oranges in 30 minutes They need one more sack at the end of the day.Working together,how long will it take them to fill the sack?
asked by loulou