Questions Asked on
February 21, 2014

Chem
Complete the Bronsted lowry reactions HPO42+H+ HPO42+OH
asked by Sharon 
Math
A container needs to package hazardous chemicals in a special plastic rectangular prism that holds 80 cubic feet. Find the whole number dimensions of the container that would use the least amount of plastic. My answer is 5ft, 2ft, and 4ft
asked by Americal 
physics
Dragrace tires in contact with an asphalt surface have a very high coefficient of static fric.tion. Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 2.1 km in 8 s,
asked by ryan 
Science
Which of the following must be true about the structures of axons and muscle cells in order for nerve impulses to stimulate muscle contraction? a Axons and muscle cells must both have structures that make and secrete the same small molecules. b axons and
asked by Anonymous 
Chemistry
What would be the density of Hydrogen gas at 500 C and 0.76 atm?
asked by Angelique 
Physics.
From greatest to least, rank the accelerations of the boxes. C. B. A. D.
asked by Amber 
math
My Math Problem When wrapping a birthday gift for his mother, Kenji adds an additional 2.5 square feet of gift wrap to allow for overlap. How many square feet of gift wrap will Kenji use to wrap a gift 3.5 feet long, 18 inches wide, and 2 feet high? My
asked by Americal 
math
i am a number between 60 and 100. my ones digit is two less than my tens digit. i am a prime number. what number am i? explain.
asked by taylor 
Statistics
Selecting a letter of the alphabet: If 3 letters of the alphabet are selected at random, find the probability of getting at least one letter "x". Letters can be used more than once. My answer was: P(at least 1 "x) = 1  (25/26)^3 = 1951/17576 or 0.11 Is
asked by Anonymous 
Physics
Consider a car is heading down a 5.5° slope (one that makes an angle of 5.5° with the horizontal) under the following road conditions. You may assume that the weight of the car is evenly distributed on all four tires and that the coefficient of static
asked by Maura 
Probability
A player is randomly dealt a sequence of 13 cards from a standard 52card deck. All sequences of 13 cards are equally likely. In an equivalent model, the cards are chosen and dealt one at a time. When choosing a card, the dealer is equally likely to pick
asked by Art 
Physics
Two automobiles, each of mass 800kg , are moving at the same speed, 18m/s , when they collide and stick together. At what speed does the wreckage move if one car was driving north and one east.
asked by Ty 
Social studies
I have tried to answer these im just not sure help plz. 1. Which word best describes modern life for Japanese teenagers such as Asuka? relaxed crowded isolated traditional 2. Tropical storms often hit Japan during the ________. summer winter spring fall 3.
asked by Jessica 
algebra
Which inequality represent the following eight fewer than a number is at least sentence 20 answers are. X8>20. 8X>20, x+8
asked by Molly 
chemistry
WRITE DOWN REACTION OF HYDROLYSIS OF NH4NO2 IN NET IONIC FORM. INDICATE REACTION OF MEDIUM.
asked by vee 
Chemistry
AgNO3 + NaCl → AgCl + NaNO3 . How many grams of NaCl would be required to react with 446 mL of 0.211 M AgNO3 solution? Answer in units of grams
asked by Zoey 
math
A colony of bacteria is growing in a petri dish which has a maximum capacity of 100mg. The mass of bacteria is increasing at a rate given by the logistic equation. Initially there is 2mg of bacteria and the rate of increase is 1mg per day.
asked by Sam 
Math! HELP!
For questions 1415, find the simplified form of each expression. (3/2b^4)^3 (3/5y^4)^2
asked by Abby 
Language Arts (Please check!)
Choose the type of punctuation that is missing from this sentence. The pet store shelves were filled with items I wanted for my pets. a. apostrophe b. semicolon c. colon d. hyphen ** Choose the type of punctuation that is missing from this sentence. Were
asked by #1Student 
physics
The distance between two telephone poles is 49 m. When a 1.6 kg bird lands on the telephone wire midway between the poles, the wire sags 0.149 m. The acceleration of gravity is 9.8 m/s2 . How much tension in the wire does the bird produce? Ignore the
asked by Anonymous 
Calculus Please help!
If 7000 dollars is invested in a bank account at an interest rate of 7 per cent per year. A) Find the amount in the bank after 6 years if interest is compounded annually? B) Find the amount in the bank after 6 years if interest is compounded quaterly? C)
asked by ALI 
Physics
Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 26.5 cm) 15.1 cm away from an object. Find the image distance. Answer in units of cm
asked by Anna 
Physics
A single mass (m1 = 3.2 kg) hangs from a spring in a motionless elevator. The spring constant is k = 253 N/m. 1) What is the distance the spring is stretched from its unstretched length? This first answer is equal to 12.4 cm but I am having trouble on the
asked by Cam 
Algebra 1
Genie has 100 feet of fence with which to make a rectangular cage for her rabbit. If she uses the wall of her house as one side, the area of the cage in square feet is given by the polynomial 2w^2 + 100w, where w is the width of the cage in feet. What is
asked by Anonymous 
Physics
An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the yaxis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the
asked by Allison 
Precalculus
C=80,000p/(100p) A)what happens of the company tries to remove 100 percent of the pollutants? Will it work or will it cost too much? B)draw a diagram to show what the consequences of the last question would be. Label the verticals asymptote(s) and analyze
asked by Aminata 
Chemistry
In a 1.0 x106 M of HNO3 (aq) at 25 degrees celsius identify the relative molar amounts of theses species HNO3 H3O+ OH NO3 H2O
asked by Joe 
Math
Kamal bought 7 packs of paper clips for a project. Then he bought 8 more packs. There are 25 paper clips in each pack. How many paper clips did he buy?
asked by Jake 
history
What was the role of civil service examinations in Ming China? does anyone have any idea what the answer could be. I was looking on the internet and found this The civil service examination system, a an effective cultural, social, political, and
asked by Victoria 
Math
why is an idea like the pacific?
asked by Nikeshaie 
biology
a farmer sprays insecticide on his crops and notices that the insect pest problems disappear. a year later he tries the same insecticide only to find that he did not achieve the same result. the insect population shows resistance to the insecticide. This
asked by Skyler 
physics
A person stands on a bathroom scale on a motionless elevator. When the elevator begins to move, the scale briefly reads 200 percent of the person's regular weight. Calculate the acceleration of the elevator, a_{elevator}. Use SI units
asked by Ryan 
Chemistry
What are the concentrations of HSO4 and SO42 for a 0.0050 M sulfuric acid solution? We are trying to find x but not sure how to find it on the calculator, please help!!!
asked by Haley&Emily 
physics
A kg block is initially at rest on a frictionless horizontal surface. It is pulled with a constant horizontal force N. How long must it be pulled before its speed is m/s? t_{pull} =
asked by sean 
Chemistry 2
A solution of NaOH (aq) contains 8.2 grams of NaOH(s) per 100.0 mL of solution. Calcualte Ph and POH at 25 degrees celsiuis
asked by Jason 
Physics
At the instant a race began, a 89.1 kg sprinter exerted a force of 710 N on the starting block in the direction 110 degrees measured clockwise from the positive xaxis. (a) What was the horizontal acceleration of the sprinter? a_x = (b) If the force was
asked by Rylan 
Chemistry 2
Calcualte PH and POh of an aqueous solution that is 0.050 M in HCL and 0.085 M in HBr at 25 degrees C
asked by Jason 
algebra
Solve the equation or formula for the indicated variable s=3r4t+or t answers are. t=s/3r. t=r43s t=s/3r4. T=811/s
asked by Molly 
Physics 2
A beam of light is incident on a plane mirror at an angle of 35¨¬. If the mirror rotates through a small angle ¥è through what angle will the reflected ray rotate
asked by Steve 
Chemistry
120.0g of ice is melted, how much energy is absorbed?
asked by carl 
algebra
A candy cane 20 cm high has a circumference of 3 cm. The red “ribbon” makes exactly 4 complete turns round the candy cane while its two ends touch the cane's top and bottom. How long is the ribbon in cm?
asked by gabriela 
West Chester University
From greatest to least, rank the accelerations of the boxes. C. B. A. D.
asked by Amber 
math
the school bands sells carnations on Valentine's day for $2 each. They buy the carnations from a florist for $0.50 each , plus $16 delivery charge . how will i put this in a system of equation .
asked by Trayanna 
physics
A block weighing 71.5 N rests on a plane inclined at 24.1° to the horizontal. The coefficient of the static and kinetic frictions are 0.26 and 0.13 respectively. What is the minimum magnitude of the force F, parallel to the plane, that will prevent the
asked by SAM 
physics
A ball of mass m strikes a wall that is perpendicular to its path at speed +v and rebounds in the opposite direction with a speed –v. The impulse imparted to the ball by the wall is
asked by jesse k 
Physics 141
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.60 104 m/s, and the radius of the orbit is 5.50 106 m. A second satellite also has a circular orbit around this same planet. The orbit of this second satellite has
asked by Hope 
Physics 141
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.60 104 m/s, and the radius of the orbit is 5.50 106 m. A second satellite also has a circular orbit around this same planet. The orbit of this second satellite has
asked by Hope 
physics
A 7 kg purse is dropped from the top of the Leaning Tower of Pisa and falls 53 m before reaching the ground with a speed of 17 m/s. What was the average force of air resistance? F_{average} =
asked by ryland 
algebra
Insertor=to make the sentence true 1/32/5 answers are. = < >
asked by Molly 
Physics
A volleyball is spiked so that it has an initial velocity of 15.6 m/s directed downward at an angle of 56.9 ° below the horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball?
asked by Elle 
math
Your friend is standing below the window outside of our classroom and attempting to throw a rock past the window to get your attention. The rock is thrown straight up in the air and passes our window 0.40s after being released. It passes the same window on
asked by gabriela 
management science
Riverside Oil Company in eastern Kentucky produces regular and supreme gasoline. Each barrel of regular sells for $21 and must have an octane rating of at least 90. Each barrel of supreme sells for $25 and must have an octane rating of at least 97. Each of
asked by Peter 
Chem Check Please!!!
Boric acid, H3 BO3, is a triprotic acid that dissociates in three reactions. The first dissociation step is: H3BO3 ⇌ H+ + H2BO3, Ka1 = 7.3 x 1010; the second dissociation step is: H2BO3 ⇌ H+ + HBO32, Ka2 = 1.8 x 1013; and the third dissociation step
asked by Mello 
Chemistry
An atom of gold has a mass of 3.271 times 10^22g. How many atoms of gold are in 5.00g of gold?
asked by Kelsi 
Chemistry
Light travels at a speed of 3.00 times 10^10 cm/s. What is the speed of light in kilometers/hour?
asked by Kelsi 
Chemistry
How much water would I need to add in order to dilute 200mL of a 5 M solution down to 2 M?
asked by Emma 
Chem
Assuming complete dissocaition, what is the pH of 4.93 mg/L BaOH2 solution
asked by Helena 
physics!!
A ball of mass m strikes a wall that is perpendicular to its path at speed +v and rebounds in the opposite direction with a speed –v. The impulse imparted to the ball by the wall is 1) 2mv 2)mv 3)mv 4)zero 5)2mv
asked by jesse k 
Science
In a fetal pig, what are the 4 lobes of the brain and their functions?
asked by Alexandra 
Physics
A block of mass 5.53 kg lies on a frictionless horizontal surface. The block is connected by a cord passing a. over a pulley to another block of mass 2.25 kg which hangs in the air. Assume the cord to be light (massless and weightless) and unstretchable
asked by Emeera 
college chemistry
Rubidium metal, Rb, crystallizes in a bodycentered cubic arrangement. What is the radius of one atom of Rb, if its density is 1.5320 g/cm3?
asked by hershi 
Algebra 1 Answer Check
1. Simplify 49^3/2. My answer: 343? 2. Simplify 5^ãx^25y^125. My answer: x^5y^25? 3. When the polynomial 5x  2x + 8x^2  7 is written in standard form, what is the leading coefficient? My answer: 2? 4. Classify the polynomial 5x^2 + 9x + 1 according
asked by Anonymous 
Bio 20
When blood enters a vein from a venule, the blood pressure A) remains constant because of the heart's pumping action B) increases because of the size of the vein C) increases because of stretch receptor stimulation D) decreases because of the size of the
asked by Courtney 
Math
The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 30 meters is 80 newtons per square centimeter. What pressure is exerted at 50 meters?
asked by Kara 
Chem
Bronsted reaction HCO3+HF acid?+base?
asked by Sharon 
Chem 2
Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 5.23 °C. . Calculate the molar mass of vitamin K. I posted this yesterday but I got the wrong
asked by Bri 
chemistry
How much heat is released when 28.95g of water is frozen?
asked by Sam 
History
Describe daily life and consumption in 18th century Europe during the Enlightenment and how it affected modern Western life. There is so many sites saying it had a good impact and bad.
asked by Victoria 
statistics
Use a table of tvalues to estimate the Pvalue for the specified onemean ttest. Lefttailed test, n=12, t= 3.412. a=p0.005. c= 0.005
asked by Kris 
Chemistry 2
Calculate Kp for the reaction C(s)+CO2(g)2CO(g) kp=? C(s)+2H2O(g)CO2(g)+2H2 kp1=3.47 H2(g)+CO2(g)H2O(g)+CO(g) kp2=0.735
asked by Sharon 
Physics 2
An antenna is connected to a car battery. Will the antenna emit electromagnetic radiation? Why or why not? Explain where Amperes and Faradays law is concerned
asked by Steve 
science
explain why a suspension is concidered a heterogeneous mixture
asked by spencer shelton 
economics
1.. Suppose that U(x; y) = min(x; y) with px = 1 and py = 1. Describe and illustrate the income and substitution effects of an increase in the price of good y. What does this imply about a tax imposed on good y.. 2.. Let U(x; y) = 5x:8y:2 showing all
asked by Anonymous 
Chemistry
A+2B>2C Kc=2.27 2c>D Kc=0.144 Calculate the equilibrium constant for the reaction D>A+2B
asked by Meredith 
algebra
To which set of numbers does the number belong55 answers are, Natural, whole, integers, irrational
asked by Molly 
physics
You are told that the linear "drag coefficient" due to air resistance for a particular object is 0.64 N · s/m and the object has a mass of 0.0010 kg. Find the magnitude of the terminal velocity of this object when dropped from rest. (Assume the object's
asked by name 
Physics
Suppose the magnitude of the "drag force" acting on the falling object of mass m is Dv2. Find the expression for the magnitude of the terminal velocity of this object. (Use any variable or symbol stated above along with the following as necessary: g. Do
asked by Name 
Algebra 1
1. Simplify 49^3/2. My answer: 343? 2. Simplify 5^ãx^25y^125. My answer: x^5y^25? 3. When the polynomial 5x  2x + 8x^2  7 is written in standard form, what is the leading coefficient? My answer: 2? 4. Classify the polynomial 5x^2 + 9x + 1 according
asked by Anonymous 
Algebra 1
Can someone simply tell me what methods I must use in order to solve this word problem? Please, don't include the answer. I wish to solve this on my own. However, I would truly appreciate it if anyone could evaluate my answer afterwards. "A rectangle has a
asked by Anonymous 
american government
McCulloch v Maryland is an important case because it was one of the cases whereby the Supreme Court (Points : 1) asserted the supreme authority of Congress. asserted national authority over the states. upheld states’ rights. affirmed Maryland’s right
asked by lisa 
Geometry
ABCD is a parallelogram. P is a point on AB such that AP:AB = 1:4. Q is a point on CD such that DQ:DC = 1:3. AQ and DP intersect at R. Find the ratio AR:RQ and the ratio AR:AQ. Show work.
asked by Lucy 
Math repost
At a business meeting at panera bread company the bill for two cappuccinos and there house lattes was $14.55. At another table the bill for one cappuccino and two house lattes was $8.77. How much did each type of beverage cost? I'm not sure how this would
asked by Anonymous 
Math
What is a 10% year raise of $3,000 per month? What is a 15% year raise of $3,000 per month?
asked by Anonymous 
physics
Three blocks on a frictionless horizontal surface are in contact with each other. A force F is applied to block A and the blocks start to slide to the right of their initial position. Determine the acceleration of the system, if m_A = 12 kg, m_B = 38 kg,
asked by sean 
Math
If a metal bar at a temperature of 20 degree celcius is dropped in boiling water how long will it take for the bar to reach 98 celcius at a rate of 2 degrees per second
asked by Derek 
precal
which of the following is an asymptote of f(x)= 5/x+6
asked by harley 
Chemistry
a mixture of 10cm^3 of C5H12 and 0.084g of C12H24 was passed with an excess of oxygen. after cooling to room temperature, the reaidual gas was passed through aqueous potassium hydroxide. what volume was absorbed by the alkali
asked by Ellen Cameron 
Science  Start of Physics
Please help me with the following problem. Given below is the positiontime graph representing motions of two runners, Nick and Ian. Use this graph to determine which runner has greater average velocity. I can't put the graph here, so the following should
asked by Brady 
algebra
Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7
asked by Molly 
Pathogen Question
As I know, both protozoa and viruses use host cells. But I want to clear up a couple of doubts about the two. 1. Do protozoa take over the host cells? I know protozoa live in the cells, but I think that only viruses take over the host cells. Is this right?
asked by Anonymous 
Physics
An engineer needs to know how far a long beam will sag under a load. The table shows some results: LOAD(N): 1000 2000 3200 4400 5200 6500 SAG(cm): 2.0 4.0 6.6 8.8 10.4 13.4 a) one of the measurements for a sag is wrong. which? What should the result be?
asked by Melaney 
american government
In Gibbons v. Ogden, the Supreme Court held that (Points : 1) states’ rights to regulate may not trample on powers specifically reserved for Congress. states’ rights supersede national authority. the national government does not have interstate
asked by lisa 
programming
Create three (3) onedimensional arrays: Item Number, Quantityonhand and Unit Cost for 15 items. Input data into all the arrays. After the data is entered, read an arbitrary number of records containing an item number and quantityordered. If the
asked by lidia 
Intermediate Algebra
Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single
asked by Anonymous 
Science
An electric eel can generate a voltage of 600V across its body. The eel does this via a system of up to 6000 “electroplaques” inside its body. What is the average strength of the electric ﬁeld in V/m inside the body of a 10cm wide eel?
asked by Khizar 
Calculus
y"y'=sin x solve in undetermined coefficients
asked by abc 
World history 201
After years of extensive study, scholars have concluded that the olmecs of southern Mexico originally emigrated from Africa. True or False
asked by Anonymous 
Physics
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 58° above the horizontal. The end of the ramp is 1.3 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the
asked by Elle 
Physics
An airplane with an airspeed of 50km/h lands on a runway where the wind speed is 30km/h .
asked by Libna 
Chemistry
determine the amount of water formed in 4NH3 + 5O2 4NO + 6H2O if 10 g of Oxygen is mixed with 10g nitrigen trihydride in grams
asked by Lee Walkr 
Chemistry
For the reaction given, the value of the equilibrium of the constant at 400 K is 7.0. Br2(g)+ Cl2(g)=2BrCl(g) Does the: Reaction proceed to the left? Reaction proceed to the right? Partial pressure represent a system in an equation?
asked by Andy 
Algebra 1
1. Simplify the quotient (6.4 x 10^9) / (1.6 x 10^3). Write the answer in scientific notation. My answer: 4 x 10^6? Simplify. 2. a^16/a^4 My answer: a^12? 3. (4y^6/x^3)^2 My answer: 16^12/x^6? 4. (2/b^5)^3 My answer: b^15/8?
asked by Anonymous 
Physics
A skier of mass 59.5 kg comes down a slope of constant angle 1◦ with the horizontal. The acceleration of gravity is 9.8 m/s^2 i. What is the force on the skier parallel to the slope? Answer in units of N. ii. What force normal to the slope is exerted by
asked by mallak 
Can someone Explain this(math)
34, 36, 43, 46, 47, 48, 48, 52, 53, 54 Box And whisker Plot I Don't Understand these at all can someone Explain without totally giving me the answer?
asked by julie 
Physics
A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3.
asked by mallak 
economic
what is the total size of the cleaning market. what is the current demand in target market. trends in target marketgrowth trends,trends in consumer preferences and trend in product development. please help
asked by anita 
Business please help
Differentiate between disitermediation and reintermediation?
asked by haigian 
math
The price of a car has been reduced from $11,000 to $8,690. What is the percentage decrease of the price of the car?
asked by cheyanne 
math
Weekly pay: $253.07 Not married Exemptions: 3 What is the federal tax?
asked by clark 
Accointing , Economics and Life Science
I was wanting to find out that with the subjects l got what type of career could l have
asked by naomi 
Algebra 1
Can someone simply tell me what methods I must use in order to solve this word problem? Please, don't include the answer. I wish to solve this on my own. However, I would truly appreciate it if anyone could evaluate my answer afterwards. "A rectangle has a
asked by Anonymous 
chemistry
By how much will the vapor pressure of water decrease if a solution at 40.0°C is produced by dissolving 16.0212 g of K3PO4 (formula mass = 212.30 g/mol) with 40.8480 g of water. The vapor pressure of pure water at this temperature is 55.30 mmHg. If the
asked by kat 
history
Throughout the seventeenth century, what was the relationship between Hungary and the Habsburg Empire?
asked by Victoria 
american government
Judges who practice what their critics call “judicial activism” argue that judges (Points : 1) have a responsibility to protect individual rights and liberties. have a responsibility to be antimajoritarian because democracy is not always a good thing.
asked by lee lee 
american government
The Privileges and Immunities Clause of the Fourteenth Amendment means (Points : 1) citizens of the United States may travel across state lines without documentation. states must all have the exact same laws as each other. that if one state recognizes gay
asked by lee lee 
chemistry
How would you prepare a solution of about 8mg/100ml of ascorbic acid in water (25ml)?
asked by solution chemistry 
biology, genetics
Suppose that r, red, and sc, scarlet, are two recessive eyecolor mutations that lie 20 map units apart on the Drosophila X chromosome, and that each causes a red eye color in place of the wild type purple color. A. If a female from purebreeding rr stock
asked by Rain 
Chemistry
What conversion factor would you use to convert cubic decimeters to milliliters?
asked by Kelsi 
history
What effect did the boom in the demand for rubber have on Africa’s European colonies?
asked by Victoria 
pysics
A 33.3 kg block (m1) is on a horizontal surface, connected to a 5.1kg block (m2) by a massless string. The pulley is massless and frictionless. A force of 220.1 N acts on m1 at an angle of 32.p deg. The coefficient of kinetic friction between m1 and the
asked by Ted 
physics
(a) A car with a mass of 950 kg is moving to the right with a constant speed of 1.45 m/s. What is the total force on the car? (b) What is the total force on the car if it is moving to the left?
asked by Anon 
physics
If a toy plane is spinning on a string 1.87 meters off the ground and the string is .5m long how long does it take to make 10 revolutions?
asked by ken 
science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard
asked by jose 
organic chemistry
What is the condensed structural formula of methyl 2aminobenzoate?
asked by roxan mee 
organic chemistry
Once it has been opened, and particularly if ithas been left open to the air, a bottle of aspirin may develop a vinegarlike odor.How this might happen?
asked by roxan mee 
Science:Chemistry
How does the silly putty made up of glue gel differ from the silly putty made of soap in terms of texture ? How would the touch be different and why? Chemical structure? .....?
asked by Anonymous 
physics
A force of 48 N is required to start a 7.8 kg box moving across a horizontal concrete floor. (a) What is the coefficient of static friction between the box and the floor? \mu_s = (b) Does the coefficent of friction have a unit? A. No, it is a ratio B. No,
asked by shawn 
physics
A block with a mass of 126 kg is pulled with a horizontal fource of F_{applied} across a rough floor. The coefficent of friction between the floor and the block is 0.7. If the block is moving at a constant velocity, what is the magnitude of F_{applied}?
asked by sean 
Science
How does the silly putty made up of glue gel differ from the silly putty made of soap in terms of texture ? How would the touch be different and why? Chemical structure? .....? Science:Chemistry  bobpursley, Friday, February 21, 2014 at 9:53pm Have you
asked by Anonymous 
Physic
A large rock with a mass of 38.2 kg is rolling at a speed of 4.8 m/s. How much power is needed to stop the rock in 7.2 seconds?
asked by Amanda 
A Peculiar Question
Can constant belittlement and henpecking be considered aspects of one's personality?
asked by Anonymous 
algebra
Graph the number on a number line 10/7
asked by Molly 
Science
Does a virus have to take over a host cell in order to reproduce?
asked by Anonymous 
social studies
Whats the distinguish between bills and resolutions ?
asked by victoria 
RE: History
Ms. Sue, Here are my reactions to the article about the survivors. Horrified, disgusted and heartbroken
asked by Emma 
Language Artscheck answer
#1. What is one thing a strong introduction does NOT do? a.) capture the reader's interest b.) present evidence to explain the topic******* c.) provide background information d.) state the main idea of the report #2. Which is the correct MLA citation for a
asked by Abby 
Calculus Please help!
Use implicit differentiation to find the slope of the tangent line to the curve at the point (1,3) 4x^2+4xy2y^3=46 m=____? ty guys so much!
asked by ALI 
Physics 141
A car is on a circular track of radius r = 100 m. It's tangential speed is 30 m/s. How many lateral gravities does the driver feel?
asked by dakota22 
Intermediate algebra
Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single
asked by K 
Algebra 1
Add (5x^2  2x + 9) + (2x^2  4). My answer: 7x^4  2x + 5 or 7x^2  2x + 5?
asked by Anonymous 
Chemistry
How many molecules of nitrogen are in 22.4 L of nitrogen at exactly 0 C and 3 atm?
asked by Angelique 
English
Did a song about selfies really just play on my itunes radio? Should it be play it played
asked by Anonymous 
Algebra 1 (Reiny)
1Simplify the quotient (6.4 x 10^9) / (1.6 x 10^3). Write the answer in scientific notation. My answer: 4 x 10^6? Simplify. 2. a^16/a^4 My answer: a^12? 3. (4y^6/x^3)^2 My answer: b^15/8?
asked by Anonymous 
phisecs
In a period of 3 h, a man walks 13 km north, turns around and walks 5 km south. Find his average velocity in km/h? Please pay attention to sign. () means the average velocity is to the south, (+) means the average velocity is to the North.
asked by w 
world geography
How has Italy’s economy changed since 1950
asked by michael 
History
as a christian, persian king khosrow I forbade zoroastrian teaching throughout his empire true or false
asked by Anonymous 
Physics
An airplane has a mass of 3.25 × 104 kg and takes off under the influence of a constant net force of 2.38 × 104 N. What is the net force that acts on the plane's 74.6kg pilot?
asked by Elle 
Calculus
¡ì(up:1 down:0) (x^3 dx)/(x^2+2x+1)
asked by abc 
Calculus
¡ìdx/(x^21)^2
asked by abc 
Math
(x^2+x2) / (x^23x4) X and y intercepts? Horizontal Asymptotes? Vertical Asymptotes?
asked by Romeo 
Heale Care Ethics
I have to do a paper on the pros and cons of confidentiality. I am having trouble starting the paper. Can you help
asked by Gabby 
Physics
A dragster and driver together have mass 900.7 kg. The dragster, starting from rest, attains a speed of 25.7 m/s in 0.54 s. 1. Find the average acceleration of the dragster during this time interval. Answer in units of m/s^2. 2. What is the size of the
asked by Suaad 
economics
Let U(x; y) = 5x:8y:2 showing all derivation work, find: (a) the Marshallian demand functions for x and y (b) the Indirect Utility Function (c) the compensated demand functions xc and yc
asked by Anonymous 
Physics
a. An object has a mass of 33 kg. The acceleration of gravity is 9.8 m/ s^2. What is its weight on the earth? Answer in units of N. 2. What is its mass on the moon where the force of gravity is 1/6 that of the earth? Answer in units of kg. 3. What is the
asked by Emeera 
Math
Given f(x) = –5x + 1, what is f(–2)?
asked by julie 
Physics
1. Two blocks on a frictionless horizontal surface are connected by a light string. The acceleration of gravity is 9.8 m/s^2. Find the acceleration of the system. Answer in units of m/s^2. 2. What is the tension in the string between the blocks? Answer in
asked by Suaad 
English
Which sentence is grammatical? There is no holes. There are no holes.
asked by Anonymous 
Science  Start of Physics
I need help with the following: Given below is the positiontime graph representing motions of two runners, Nick and Ian. Use this graph to determine which runner has greater average velocity. For this one, I know the answer is 2m/0s, but I don't know if
asked by Brady 
phisecs
`filling the blanks: sun_________________ than moon. earth is__________________mercury.''.
asked by w 
physics
What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.24? a_{max} =
asked by shaun 
Liberty
What is the sample Z score to reject the null hypothesis if the cut off Z score +2.31?
asked by Keith