Questions Asked on
November 14, 2010

AP Chemistry
A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.
asked by Anonymous 
chem
Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H, 4.20%; O, 58.29%. Calculate the empirical formula of citric acid. (Type your answer using the format CO2 for CO2.) thanks
asked by hannah 
Chemisry
Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a chemical equation. Identify all
asked by TMV 
Chemistry
given the ionic formula X2O What is the charge of X?
asked by HelloHello 
business math
Of the 4800 students at Medium Suburban College (MSC), 50 play collegiate soccer, 60 play collegiate lacrosse, and 96 play collegiate football. Only 6 students play both collegiate soccer and lacrosse, 6 play collegiate soccer and football, and 16 play
asked by liz c 
AP Chemistry
What is the equation for the standard enthalpy of formation for magnesium nitrate?
asked by Andrew 
physics
A boat floating in fresh water displaces water weighing 35.6 kN. (a) What is the weight of the water this boat displaces when floating in salt water of density 1.10 x 10^3 kg/m^3? (b) What is the difference between the volume of fresh water displaced and
asked by Meghan 
Calculus
Oil is leaking out of a ruptured tanker at a rate of r = 19e^(2t) gallons per hour. Write a definite integral that represents the total quantity of oil which leaks out of the tanker in the first 3 hours. Using your formula answer the following questions:
asked by Lena 
chem
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide. Give the number of moles of each element to support you answer.
asked by sam 
algebra
If there are 8 red disks numbered 1 through 8, and 6 yellow disks numbered 9 through 14 placed in a box. Find the probability of selecting a red disk numbered 3.
asked by Kelly 
projectile motion
You have a boat with a motor that propels it at vboat = 4.5 m/s relative to the water. You point it directly across the river and find that when you reach the other side, you have traveled a total distance of 27 m (indicated by the dotted line in the
asked by leila 
Physics
A long wire that carries a current is bent into a solenoid with upward current in the front looking. If the observer could "see" the magnetic field inside this arrangement of solenoid from the right side, how would it appear? a) The observer would "see" a
asked by Blake 
Chemistry
A sample of oxygen is collected over water at 22°C and 762 torr. What is the partial pressure of the dry oxygen? The vapor pressure of water at 22°C is 19.8 torr.
asked by Kiesha 
calculus
Find all relative extrema and points of inflection of the function: f(x) = sin (x/2) 0 =< x =< 4pi =< is supposed to be less than or equal to. I can find the extrema, but the points of inflection has me stumped. The inflection point is (2pi,0) but
asked by James 
Chem
Can you please tell me if these are right? Classify the solutes in the following equations as a weak electrolyte, a strong electrolyte of a non electrolyte in water. a. XY2(s)=X2+(aq) +2Y(aq) b. HX(g) ß=H+(aq) + X(aq) c. XYZ(s)=XYZ(aq) d. YOH(s)=Y+(aq)
asked by Jason 
Microeconomics
1.You plan a major adventure trip for the summer. You won’t be able to take your usual summer job that pays $6,000, and you won’t be able to live at home for free. The cost of your travel on the trip will be $3,000, film and videotape will cost you
asked by yt 
math
Write a proportion that can be used to find the cost of 10 notebooks if 3 notebooks cost $1.98
asked by Lilly 
math
video games are on sale for 35% off. if a particular game regulary sells for $99.50 what is the sale price
asked by Lilly 
physics
an object displaces 2.3×〖10〗^(3) m^3 of water when totally immersed into it. What is the buoyant force exerted by water? What is the density of the object if its mass is 26kg?of what material is the object made of?
asked by fae 
Algebra
You are buying beads and string to make a necklace. The string costs $1.50, a package of 10 decorative beads costs $.50, and a package of 25 plain beads costs $.75. You can spend only $7.00 and you need 150 beads. How many packages of each type of bead
asked by Alissa 
chem
consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are
asked by julia 
Chemistry
Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a chemical equation. Identify all
asked by TMV 
math
Tell which real number corresponds to the situation: During a month, a person withdraws $350. what is the corresponding # for this sentence?
asked by charlie 
Maths
What is 8.2% as a fraction in it's lowest term Please someone kindly help!
asked by Milly 
math
find the percent of decrease from 280 to 210. round to the nearest tenth of percent if necessary
asked by Lilly 
PreCalculus
If sin(theta)=15/17 and cos(beta)=(5/13 (both theta and beta are in quadrant II) find tan(theta+beta)
asked by Riley 
Chem
Can you please tell me if these are right? A gas has a volume of 2.8 L at a temperature of 27 degrees C. What temperature degrees C is needed to expand the volume to 15 L? (P and n are constant.) I got 1334 degress C Combined gas law problem a balloon is
asked by Alice 
math
Two us states are not part of the contential us. What percent of the fiffty us states are included in the contential state? A.2% B 13% C.48% D 96% is it D?
asked by Lilly 
Physics
A diver running 1.2 m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 3.1 s later. How high was the cliff and how far from its base did the diver hit the water?
asked by Al 
math
Suppose two blocks of ice are heading toward each other. block A has a mass of 4.24 kg and is traveling at 2.24 m/s. Block B has a mass 4.42 kg and is traveling at 2.24 in the opposite direction. After the collision they are traveling in the same speed.
asked by Mayte 
Epidemiology
what was the primary exposure variable of interest for alcohol consumption and risk of pheripheral arterial disease
asked by Cindy 
physics
A juggler throws a ball from height of 0.950 m with a vertical velocity of +5.50 m/s and misses it on the way down. What is its velocity when it hits the ground?
asked by leila 
Math
About 3/4 of the track team are girls. About 3/4 of these girls are in 8 th grade. What fraction of th e students are grade 8 girls? 1/3?
asked by Tanner 
english
Make a noun by adding a suffix to the word priest. write a sentence.
asked by aj 
Physics
A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true.
asked by Katie 
chemistry
Calculate the mass of salts needed for constructing a buffer using potassium monobasic phosphate and potassium dibasic phosphate with the total concentration of 100 mM. The solution is to be prepared in DI water and the pKa value for potassium monobasic
asked by dave 
finance
Julie's xray company paid $2.00 per share in common stock dividends last year. The company's policy is to allow its divident to grow at 5 percent for 4 years and then the rate of growth changes to 3 percnet per year from year 5 on. What is the value of
asked by will smithe 
geometry
Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?
asked by Justice 
AP Physics
Jean, who likes physics experiments, dangles her watch from a thin piece of string while the jetliner she is in takes off from Dulles Airport (Fig. 455). She notices that the string makes an angle of 24° with respect to the vertical while the aircraft
asked by maddy 
math homework
marty has saved $72 he spent $8 on a vid rental write a ratio as a fraction in simplest form to represent what proportion of his savings he has left
asked by doo 
Business math
what the rebate of the finance charge and payoff would be if the pickup truck loan were paid off after 27 months instead of 60. Total of monthly payments 60 x 194.38. I don't know how to get the total finance charge
asked by Rebecca 
A&P
Compare ionic, covalent, and hydrogen bonding, and fully describe an example of each. Is this right and I need help with an example of a covalent bond. Ionic bond is formed from one metal and one non metal. It is a solid at room temperate. In an ionic bond
asked by Danielle 
physics
(a) What is the torque about the origin on a jar of jalapeno peppers located at coordinates (1.0 m, 4.0 m, 2.0 m) due to force F1 = (3.0 N) + (2.0 N) + (5.0 N) ?
asked by Gustavo 
Stout
A chocolate chip cookie contains about 200 kcal. How many kilowatthours of energy per day does it contain. How long could you light a 100W light bulb with the energy from the cookie?
asked by Linda 
physics
Do beams of charged particles contain isotopes ?
asked by Reema 
9th grade
a stone propelled from a catapult with a speed of 50m/s attains a height of 100m calculate the angle of projection
asked by Anonymous 
Satistics
In North American, female adult heights are approximately normal with a mean of 65 inches and a standard deviation of 3.5 inches. a.) If one female is selected at Random, what is the probablility that shes has a height 70 inches or higher? b.) The heights
asked by Benjamin 
Calc
What is the area that this encloses? r = 4cos(3θ)
asked by Thomas 
Math
A map shows the distance between a corner of Cactus Road and 1st street and the corner of 1st street snd Merle oad as 3 inches. If the scale is 1 in: 3.7 mi what is the actual distance????
asked by Edith 
math
A building cast a shadow 42m long. At the same time, the shadow cast by a 34 cm tall pole is 86 cm long. Find the height of the building
asked by Ray 
math
The trough is in the shape of a triangular prism. It is 5 ft long and its vertical cross sections are isosceles triangles with base 2ft and height 3ft. Water is being siphoned out of the trough at the rate of 2 cubic feet per minute. At any... time t, let
asked by LOKAA 
chemistry
I have the lewis structure for ICL3 and SF4, it is asking for the general formula for ICL3? Is this the empirical formula if so how would I figure out how to do that
asked by Sarah 
high school
In F. Scott Fitzgerald's story "Bernice Bobs Her Hair," we are very likely to
asked by Anonymous 
science
what is the weight of a 48 kg astronaut in outer space traveling with constant velocity?
asked by Jackie 
physics
An amount of work equal to 3.5 J is required to compress the spring in a marble gun. If all energy is conserved, how much kinetic energy does a 25 gram marble have when it leaves the spring?
asked by Mimi 
Chemistry
Is crystallization a chemical or physical change?
asked by Lucy X 
Algebra 2
An appliance store manager is ordering chest and upright freezers. One chest freezer costs $250 and delivers a $40 profit. One upright freezer costs $400 and delivers a $60 profit. Based on previous sales, the manager expects to sell at least 100 freezers.
asked by Maria 
physics
How far downstream will a boat aimed 9 degrees upstream land? boat speed= 25m/s river speed= 20m/s river width= 20m/s
asked by hi 
Chemistry
How many pi bonds and sigma bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
Chemistry
How many pi bonds and sigma bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
physics
you measure the period of a 2.0m pendulum and find it is 2.8s. what is the value of g at your location?
asked by hannah 
chemistry
How many mL of 0.0500 M phosphoric acid (H3PO4) are needed to titrate completely 50.0 mL of 0.150 M barium hydroxide (Ba(OH)2)) solution?
asked by steve 
chemistry
the pressure on a gas at73 Cis doubled, but its volume is held at constant. What will the final temperature be in degrees Cesius?
asked by chelsey 
DISPLACEMENT and VELOCITY
A turtle moves 3.5m [E] in 136 s and then moves 1.7m [W] in 88 s. a) What is the average speed of the turtle? b) What is the average velocity of the turtle? average speed: D/T = 3.5m + 1.7m = 5.2m/ 224s = 0.024m/s average velocity:?????????? Have I
asked by Anonymous 
physiscs
A 10g sample of an unknown ionic compound is dissolved, and the solution is treated with enough AgNO3 to precipitate all the chloride ion. If 30.1 g of AgCI are recovered, which of the following compound could be the unknown? A. NaCI B. NaNO3 C.BaCI2 D. Mg
asked by Jay 
college intermediate algebra
what is the step by step solution to 3x2y11xy+8y
asked by Shatovia 
AP Chem
The heat of combustion of octane (C8H18) is 47.8 kJ/g and one gallon of C8H18 has a mass of 2620 g. If a car using octane is driven 10,000 miles in one year and gets 25 miles per gallon of octane, what is the total energy consumption? 1. 5.01 × 107 kJ 2.
asked by Kai 
Physics
Which of the following best describes the image from a thin convex lens that forms whenever the object is at a distance more than two focal lengths from the lens?
asked by Laura 
Chemistry
write the formula for hydrogen and bromine forming hydrogen bromide & nickel and oxygen forming nickel (II) oxide
asked by alicia 
math
In a survey, 480 people or 75% said they attened a movie at least a month. how many people were surveyed? i don't get how to find the answer
asked by Lilly 
Physics
A boy pushes his friend across a skating rink. Since the frictional forces are very small, the force exerted by the boy on his friend's back is the only significant forece acting on the friend in the horizontal direction. Is the change in kinetic energy of
asked by Taylor 
HELP! advanced algebra
A bakery is making wholewheat bread and apple bran muffins. For each batch of bread they make $35 profit. For each batch of muffins they make $10 profit. The bread takes 4 hours to prepare and 1 hour to bake. The muffins take 0.5 hour to prepare and 0.5
asked by Maria 
Physics homework help
What approximate change in decibles does an observer experience form a sound source if the oberver moves to a new location that is 67% as far from the source? 23 23 40 2.76 2.76 1.94 1.94 2.57 2.57 0
asked by kristina 
chem
when an aqueous solution BaCl2 is mixied with an aqueois solution of Na2CO3, solid barium carbonate precipitates out of solution. write molecular equation, complete ionic equattionand net equation. is this the right formula??
asked by julia 
6th grade math
Problem: How many 3/4ths are in 1? Is the calculation correct? 1 / 3/4 1 x 4/3 = 4/3
asked by Suzanne 
math
Please explain how you would use a mathematical property to make the following number sentence always true: a x 9 = a x 7 + 2
asked by M 
Physics
5) An insulated Thermos contains 190 cm3 of hot coffee at 79.0°C. You put in a 11.0 g ice cube at its melting point to cool the coffee. By how many degrees (in Celsius) has your coffee cooled once the ice has melted and equilibrium is reached? Treat the
asked by john 
11 grade physics
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.24 and the push imparts an initial speed of 4.2 m/s?
asked by Cameron 
Physics
A boy sits on a ferris wheel. how much work is done on him by gravitional forces when the wheel makes one complete turn? Explain.
asked by Anonymous 
chem
What is the lewis structure for(HN3)
asked by kary 
AP Physics
An 18.0 kg box is released on a 35.0° incline and accelerates down the incline at 0.269 m/s2. Find the friction force impeding its motion. How large is the coefficient of friction?
asked by maddy 
social studies
what are ten adjectives that describe road transportation
asked by allen 
5th grade
My daughter is taking OLSAT test for gift & talented middle school. All practice questions I find are for Kindergarten or 1st grade. Any ideas on how she should prepare? Thank you.
asked by Elaine 
English
1.In flat areas, water is pumped out of the ground. Identify prepositional phrase then tell is adjective or adverb phrase 1.in flat areasadverb of the groundadverb
asked by Anonymous 
math
215=93logd how do you solve for d?
asked by gaf 
College algebra
Solve for z 4(42z)+1=7(x+2(1z))
asked by chris 
math
At the store, 6 pencils sell for $.99. At this rate what is the cost of 16 pencils?
asked by Lilly 
chem
at 50.0C the balloon ha a vlomue of 1.78L. Calculate the carbon dioxide density at this temperature.
asked by julia 
algebra
need to find square root 292
asked by chris 
ochem
when the concentration of CHBr3 and NaOH are both .145, the rate of the reaction is .0040 M/s. What is the rate of the eaction if the concentration of CHBr3 is doubled?if the conc. is halved?if the two conc. are both increased by a factor of five?
asked by natalie 
statistics probability
Alice earned a score of 940 on an IQ test.The mean test score was 850 with a standard deviation of 100.(Assume that test scores are normally distributed). Q1a).What proportion of students had a higher score than alice? Qb)Find the score exceeded by 2.5% of
asked by koo 
chemistry
If I make an ice pack with 750 mL of water, what mass of ammonium chloride must I include to get the temperature to drop from 20 degrees celsius to 5 degrees celsius. The heat of solution of the water and ammonium chloride is 14.8 kJ/mole.
asked by Anna 
calculus
Find the derivative using the limit process y=cox find dy/dx
asked by mari 
PHYSiCS 
Volts = 180 Diameter of Beam = 11 Radius of Beam = D/2 = 0.055 (cm) 1/R (m) = 18.18 Current in Coil (I) = 1.02 My calculations for B is not coming out correctly nor is my calculation for e/m How do I go about doing this. I mean I think Im inputting it
asked by Reema 
Language Arts
In the book, THE GIVER, what did the bicycles symbolize for the Nines?
asked by Olivia N. 
english
Writing an opposing view essay and am a little stuck on thesis statement. This is what I have so far.... Have you ever taken into consideration that with one action, whether it be a mistake or purposely done, you could be sentenced to death? Many of us do
asked by Lynne 
space
traveling 10,000 miles per hour how long will it take to get to jupiter from earth
asked by mateo 
8th grade math
what percent of 200 is 40
asked by chasity 
Business
You're an individual investor who holds common stock in a large blue chip company. You've received notice of a proposed change. Instead of using the existing statutory method, the proposal calls for the company's board of directors to be elected by the
asked by Anonymous 
polymer science
inhibiters are to the monomer for the polymer preparation we need to remove the inhibiters how can remove the inhibiters
asked by prade 
Calculus
find the equation of a tangent line of x^(1/4) + y^(1/4) = 4 at the point (16,16)
asked by kevin 
algebra
help me please... The expression for figuring a student's average test score is (p/t), where p is the total points earned on all the tests, and the t is the number of tests. find a student's average when 623 points are earned on 7 tests.
asked by cindy 
chemistry
how many liters H2O need for incineration 25 L C3H8
asked by eri 
5th grade math
10/10  5/5 = Iknow the deon. need to be the same do would the answer be 0 would you * 5/5 by 2 to do the problem? Thank you.
asked by Jill 
chemistry
monoclorur 1 methyl 3 hekzan isomers
asked by eri 
physics
A 17 kg block is dragged over a rough, hor izontal surface by a constant force of 170 N acting at an angle of angle 32.1◦ above the horizontal. The block is displaced 33.9 m, and the coefficient of kinetic friction is 0.199. a] find the work done by
asked by mary 
Accounting
Carpaitha Inc began 2009 with $140,000 in cash. The company plans to have $1,400,000 accrual basis sales revenue during the year, of which it plans to collect 80% in 2009 and the other 20% in 2010. The company plans to record the following expenses in
asked by Joyce 
Chemistry
If I had one gollan of sodium hydroxide solution which had a concecentration of two pounds of sodium hydroxide per gallon, What would be the concentration of four gallons of that acid?
asked by Kisha 
math
Hi brigent.How did you know it was 6 weeks?Thanks
asked by YASMINE 
English
Can you please help me check these sentences? Thank you very much. 1) We have fiftyfive minute lessons except for the first and the last lesson which last sixty minutes 2) I have 5 hours of lesson on Mondays, Tuesdays and Thursdays. I have afternoon
asked by Franco 
math  algebra
how would i solve this using the substitution method 3y=11x 3xy=3 thanks
asked by paul 
8th grade math
is this expression correct? Question: translate 14 increased by y to an algebraic expression. my answer: 14 + y
asked by chasity 
Cultural Anthropology
Ethnographic methods are to ethnological methods as
asked by Anonymous 
math
Write down the gradient and the yintercept of the straight lines whose equations are given as follows: a) y=2x4, b) 2y=x+6, c) yx=2, d) 2x+3y=6x
asked by Silas 
principles of economics
Explain how Demand, Elasticity, and Total Revenue are all related to each other. Explain this relationship using at least two examples that incorporates all three concepts. Use examples from personal experience. *can anyone please explain this to me or
asked by mary 
perimeter
how to draw a 15 cm and 9 cm perimeter
asked by selina 
Critical Reading
what is an invalid comparison for the analogy: Taking an online class is like?
asked by Terri 
comm/155
Hi could you check my sentences to see if their right?
asked by ruby 
Algebra 1
write a function rule for each situation. The volume V(n) of a cube when you know the length n of a side.
asked by David 
English
I forgot to include the following sentences. I really hope you can have a look at them, too. 1) I dress myself/I get dressed But not I wear myself. 2)R.E. stands for religious education. 3) In winter OR in the winter? Along/on the wall opposite the window
asked by Franco 
Computer/assembly language
Write a procedure BCD to convert a hexadecimal number in RA into its BCD (binarycoded decimal) representation and place it in RB. The return address should be placed in RF. For example, if RA=0x0024 before the call, RB=0x0036 after the all. // can someone
asked by traxx 
math
Classify each quadrilateral using the best description
asked by dana 
Algebra 1
I need to find the equation for these function tables (ex. y=2x). Is there a general formula for finding the equation, or do I have to guess each time? 1. (4,3) (6,13) (8,23) 2. (5,22) (6,15) (7,8) 3. (4, 90) (6,82) (8,72)
asked by S 
Calculus
The velocity of a car (in miles per hour) is given by v(t) = 61.25t − 17.5 t^2 where t is in hours. Write a definite integral for the distance the car travels during the first 2.5 hours. Use your graphing calculator to find this distance. Distance =
asked by Jane 
space
gowing 10,00 miles per hour how long will it take to get to jupiter from earth with earth the sun and jupiter alined like a straight line or just an estimation
asked by mateo 
math
Determine the selling price of a 15year, 4.725% bond, with $1000 maturity value, with a yield of 4.735%. (Assume twiceyearly interest payments. Round your answer to the nearest cent.)
asked by liz c 
ethics
What are some examples of organizational culture? Where does organizational culture come from? How do we learn it? How do we know when we have violated it?
asked by Anonymous 
Spanish
Need help with this activity: Imagine that in your backpack you have several writing implements, all of which are the same size: 2 lápices, 5 bolígrafros, 3 marcadores. If you pull one out at random, what is the percent probability that it will be a
asked by mysterychicken 
math
Meg's pension plan is an annuity with a guaranteed return of 7% interest per year (compounded monthly). She would like to retire with a pension of $20000 per month for 20 years. If she works 28 years before retiring, how much money must she and her
asked by liz c 
Algebra
An appliance store manager is ordering chest and upright freezers. One chest freezer costs $250 and delivers a $40 profit. One upright freezer costs $400 and delivers a $60 profit. Based on previous sales, the manager expects to sell at least 100 freezers.
asked by Alissa 
Calculus
A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640  16t^2 y'= 32t When does the ball hit the ground, and how fast is it going at that time? Give
asked by Ashley 
science
what are two causes of mechanical weathering ice wedging and _____
asked by kayla 
Physics
A 67.0 kg base runner begins his slide into second base when moving at a speed of 3.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. How much mechanical energy is
asked by Marcus 
college
Hi, I just want to make sure I am doing this assignment correctly.The question is: How are medical coding, physician, and payer fees related to the compliance process? I believe that they are related because the medical coding specialist is required to
asked by Aly 
PreCalc
I have two questions how do you solve cos x=sqrt2cosx on the interval of [0,2pi) and how do you verify sin^2(theta)/1cos(theta)=1+cos(theta) without negating it to equal 1?
asked by Daniel 
AP PHYSICS
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of 1.90 m above the floor with a speed of 7.00 m/s. The ball goes through the net 3.10 m above the floor at a speed of 3.70 m/s. What is the work done on the ball by air
asked by Brennan 
english 11
King Arthur legend relates to sir gawain and the green knight and monty python and the holy grail?
asked by nick 
AP PHYSICS
A 2.30 102 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 21.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 7.00 m. Find the work done by
asked by Ashley 
math
Maratha paid $42.40 for her sisters birthday present. this included 6% sales tax. What was the cost of the gift before tax?
asked by lilly 
Language Arts
Are these real words? surfeitly surfeitness surfeitous
asked by Anya 
calculus
find point(s) on the graph of the function f(x) = x^3  2 where the slope is 3
asked by Jazmin 
PLEASE HELP  english
If something has a higher surface area what does that mean? can it me said that it is more thicker? please and thank you
asked by eddy 
algebra
3/4n  8 = 91 simplified, what is n?
asked by Serina 
health
A 72yearold man is diagniosed with a 7 cm primary tumor in his colon, which has spread to the liver. Which of the following features indicates that the tumor is malignant? The location of the primary tumor or The spreading of the tumor. _I think it is
asked by betty 
math
Joaquin makes $600 a week. A raise of $24 a week represents what % of his salary?
asked by Michelle 
microeconomics problems
The GreenAcres mowing company wants to buy the new “Titan3000” lawn mowers. Assume that the lawn mowers are expected to last indefinitely, that operating expenses are negligible, and that the price per acre of mowed lawn is expected to remain constant
asked by linda 
Chemistry
1) When hydrazine (N2H4) is burned in a 253g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is
asked by Sarah 
social studies
outline any five skills that all effective parents must have
asked by esther 
math
Evaluate (3 + 4) + 1 in the mod 5 system
asked by mike 
calculus
use epsilon delta to prove the following lim x^29/x+3 =6 x>3
asked by pinki 
Chemistry!
Hey jiskha. Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that is transferred to other components of the food. Suppose that the microwave radiation has a wavelength of 12.7 cm. How many
asked by Alex 
math
Floria wnats to buy a dress that costs $96. She has saved $60 for the dress. what percent of the price of the dress has she saved?
asked by Michelle 
geography
Which continents does the Tropic of Cancer pass through? North America, Africa, and AsiaIs that correct? If it is not can you direct me to a better website for a map that is clearer then the one I looked at to show me this answer?
asked by Reed 
phys hmwk help
A gas is taken though a single process in which its volume decreases by .25 m^3 as the temp of the gas rises 2deg C. Which of the following people are more likely to have reached the correct conclusion? a. Bob ids this process as adiabatic b. Jill ids this
asked by Jarod 
mat116
In a triangle ABC, angle B is 4 times angle A and angle C is 16 degrees less than 5 times angle A. What is the size of angle A _____ B _____ and C _____ I would like to learn this so please be so kind to walk me through the steps. I appreciate you very
asked by thawk 
6th grade english
Is "reminds" a present, present participle, past, or past participle? Kim "reminds" Robin of their five days at camp.
asked by Suzanne 
math
matthew got 36 problems right out of a total of 40 problems on a test. What percent of the problems did he get right?
asked by Michelle 
ethics
How do you think slavery influenced the evolution of both Black and White America today? Explain your answer. (Schaefer, 2006, p. 207)
asked by Dawn Busbee 
Chemistry
1) When hydrazine (N2H4) is burned in a 253g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is
asked by Sarah 
AP US History
The South Carolina Crisis of 18321833 resulted in a. a clear victory for the federal government or d. unanimous support in South Carolina for nullification The following, except one, were important manifestations of antiforeignism in the 1850's: a. the
asked by Kylie 
math
Mrs.rushford began to hike at an elevation of negative 40 feet. her elevation decreased by 90 feet in one hour what was Ms.rushford elevation after 1 hour
asked by brooke 
math
need help please. thanks evaluate and simplify. (8x/y) for x=10 and y=2
asked by charlie 
algebra I
use mulitplying by 1 to find an expression equivalent to (10/13) with a denominator of 39a Thank you for your help.
asked by adore001 
math
whats 5 to the seventh power and whats 5 to the third power
asked by brooke 
English
Can you please check these sentences please? Thank you. 1) Along the wall in front of the left window there is a book closet (correction: book shelf) 2)What distance do you walk to school every day? OR How far do you walk to school every day? 3) They have
asked by Franco 
Macroeconomics
How would i approach this question? I don't necessarily want an answer. A "how to" would be better. (Simple Spending Multiplier) For each of the following values for the MPC, determine the size of the simple spending multiplier and the total change in real
asked by Lauren 
physics
if you were stationary in space at the same distance from the sun as the eath is, how much force would the sun be exerting on you? what would be your acceleration towrd the sun? what would be the sun's acceleration toward you? okay so im a little confused
asked by Anna 
U.S. Presidents
Are former presidents of the United States who are still alive today have retired from politics? I think it's obvious that it's true, but George W. Bush is still the owner of the MLB's Texas Rangers.
asked by AL 92 
Calculus
What are the antiderivites of x/ (x^2 (squareroot of x^41)) and 1/ (1+(x^2/4)) no idea :{
asked by kevin 
math
on a loan of $3,500, manny had to pay $280 interest. The interest was what percent of mannys loan?
asked by Michelle 
chemistry please help!!
for thr reation: 2AlCl3 + 3H2SO4= Al2(SO4)3 + 6 HCl How many grams of H2SO4 are needed to produce 27.0 grams of Al2(SO4)3
asked by Lillian 
8th grade math
Translate the phrase to an algebraic expression. Justin had $31 before spending q dollars on jeans. How much money remains? Thank you
asked by chasity 
psychology
how can i compare and contrast neurophysiological substrates toward a personal situation
asked by angela 
Chemistry
At the same cost per pound, which alcohol, CH3OH or C2H5OH, would be more economical to purchase as an antifreeze for your car? Why?
asked by Sarah 
math
Carl weighed 180 pounds. After two months of dieting and exercising, he lost 9 pounds. What percent of his weight did he lose?
asked by Michelle 
English
Hi I have to do a presentation on the graphic version of the novel "Kidnapped" by Robert Louis Stevenson. I plan on doing a powerpoint (it's on tuesday ahh). I was wondering what key points i should mention and describe. Please help, I am stressing over
asked by Jon 
marketing
product is not concerend with
asked by cb 
geology
what is the primary basis for differentiating the eras?
asked by lisa 
math
I need help with a quiz, it has 30 questions, can you help?
asked by Tammy 
math
margaret is reading a book that is 288 pages long. If she has already read 96 pages,what percent of the book has she read?
asked by Michelle 
English
1.Another Chinese method of irrigation is shown in the lower picture. 2.In flat areas, water is pumped out of the ground. 3.Farmers build ridges around the terraces so that the terraces can be flooded during the growing season. 4.As you can see, water from
asked by Clayton 
sociology
Describe other measurements besides IAT sociologist utilize to calculate prejudice?
asked by Shantai 
HIS 135
Describe the teenage culture that first developed in the United States after WWII. Consider why teenagers were considered a separate culture, and describe the characteristics that made their culture unique
asked by Pam 
Physics
A child is walking along the sidewalk at a speed of 1 m/s while pulling his wagon. The wagon weighs 56 N. If the child pulls at an angle of 12o, and the the coefficient of kinetic friction is 0.40, then how hard does the child pull on the handle?
asked by Anonymous 
Physics
what propels a rocket away from the surface of the earth?
asked by Rose 
Physics
what propels a rocket away from the surface of the earth?
asked by Rose 
None
How is a circle like a human?Please do 3 reasons.
asked by Yan 
Maths
Find the gradient of the curve xy^3 = 5 ln y at the point (0,1).
asked by Anique 
English
Thank you very much for your corrections! Can you check these few sentences plese? 1)I get the bus that crosses my village at five to seven. 2) 2016: twenty sixteen OR Two thousand and sixteen. 1805: eighteen oh five OR eighteen hundred and five. 3) She's
asked by Franco 
math
The johnson family spends $675 a month on rent. if their monthly income is $2,700, what percent of their income goes to rent?
asked by Michelle 
math
The trough is in the shape of a triangular prism. It is 5 ft long and its vertical cross sections are isosceles triangles with base 2ft and height 3ft. Water is being siphoned out of the trough at the rate of 2 cubic feet per minute. At any... time t, let
asked by LOKAA 
Algebra help+check please?
Graph the function. Compare the graph with the graph of f(x)=x q(x)=x1 How would I do this? Cause, I do know that f is the same thing as y and so that in the problem it'd be y=x1 right? Could somebody please explain how to do this STEP by STEP?
asked by Allyson 
child care
why is the incubation stage of an illness of concern to day care workes?
asked by tassey 
english
I am writing an oppossing view essay. For this part of the essay we are not supposed to take a stance. The teacher has broken the assignment into 2 parts. The 1st part is actually just to help us learn how to write our final essay. I have pulled alot of
asked by Lynne 
child care
the main difference between emergency care and first aid is the
asked by tassey 
Physics
A child is walking along the sidewalk at a speed of 1 m/s while pulling his wagon. The wagon weighs 56 N. If the child pulls at an angle of 12o, and the the coefficient of kinetic friction is 0.40, then how hard does the child pull on the handle?
asked by Anonymous 
Critical Reading
An argument is a message that is being sent with the purpose of persuading us to accept certain information true or false. I would say true. Would that be right?Thank you!
asked by Michelle 
pre calculus
f(x)= a+tan(bx) fina a and b f(0)= 5 f(pi/8)=1/sq root of 3 +5
asked by Caitlyn 
Maths
Find the gradient of the curve xy^3 = 5 ln y at the point (0,1).
asked by Anique 
chem
Liquid water has a density of 1.00g/mL at 10.0C and .996g/mL at 30.0C. Calculate the change in volume that occurs when 500mL of water is heated from 10.0C to 30.0C.
asked by julia 
math; distributive property;perimeter of a triangl
How do I find the perimeter of a triangle if each side has an expression such as: 3x, and the second side let's say 4y, or the third side is 3x...something like that. Please help. I'm trying to study.
asked by Kyra 
Business
Hiring o Performance evaluations o Discipline o Termination o Diversity o Harassment o Manager as a role model • Write a 1,050 to 1,400word paper addressing the following points: o Describe the moral and ethical issues faced by managers dealing with
asked by Jessica 
Geometry
How do I solve this problem? Point P is between points L and M. LM = 10x, LP = 2x + 4, and PM = 3x + 16. Solve for x.
asked by Terri 
Calculus
find dy/dx and d^2y/dx^2 of 3x(y^2) 2y=2
asked by smokey 
math
Two cars have a head on collision. Both are traveling at 28 m/s toward each othe. Car A has a mass of 700 kg and car B has a mass of 904kg. What is car B velocity after the impact?
asked by Mayte 
child care
the introductuion of semisoild foods to a fivemonth old infant may be delayed if
asked by tassey 
PSY/202
The issue that discusses whether development is more a function of biology or more a function of the environment is the ______________ controversy.
asked by Liz 
Science
are mixtures heterogeneous or homogenous? are compounds heterogeneous or homogenous? which one is both heterogeneous and homogenous? Can a mixture be separated physically or chemically? What about a compound? please help
asked by alicia 
child care
a condition often brought on by an allergic reactionis
asked by tassey 
Physics
3. You have a simple circuit with a light bulb (R = 50 Ω) and a power supply (you can treat it like a battery with 120 V). Unfortunately, a loose screw fell on the circuit and is connected in parallel to the light bulb. You can treat the screw as a
asked by Tiffini 
biology
Other than transporting oxygen, what other important function does hemoglobin perform?
asked by Michael 
Epidemiology
what was the primary outcome variable of interest for alcohol consumption and peripheral arterial disease What was a primary study exclusion criterion
asked by Cindy 
Math rational exponents
what is the domain of these functions? y= 1/5x^(1/3) and y=10x^ (1/6)
asked by Charm 
statistics
Please help!! I have been researching this online for hours with no luck... Q: What is the scope and scale of a chart or graph?
asked by Angela 
math
Margaret is reading a book that is 288 pages long. If she has already read 96 pages, what percent of the book has she read? And what percent of the book does Margaret have left to read?
asked by Michelle 
Spanish
Are these correct? 'Write the time in sentence form in Spanish for each of the following:' 1:15 una y cuarto 4:45 Son las cinco menos cuarto 7:10 siete y diez Thanks MC
asked by mysterychicken 
child care
my answer is (d) the infant is teething
asked by tassey 
physics please help
The femur is a bone in the leg whose minimum crosssectional area is about 3.60 104 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists
asked by dan 
Physics
A solid ball of mass m rolls along a horizontal surface with a translational speed of v. What percent of its total kinetic energy is translational?
asked by Lacey 
9th grade
1+9a8=8a
asked by alicia 
Chemistry
In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, often abbreviated as Tris. At 25 C, Tris has a pKb of 5.91. The hydrochloride can be abbreviated as Tris HCl. What volume of 10.0 M NaOH is
asked by Alexandra 
Chemistry
How many pi bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
Maths
what are these decimals into fractions and in their lowest terms: 0.19 and 0.06 Please help!
asked by Mary 
life science
a.)What are the steps of mitosis? b.)Explain what each of the steps mean. c.)What are the steps of cell division? d.)Explain what each of the steps mean. e.)Compare and contrast mitosis and cell division.
asked by Bridgett 
Chemistry
How many pi bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
Language Arts
Can "deaf" be an antonym for "auditory"?
asked by Anonymous 
projectile motion
You fire a squirt gun horizontally from an open window in a multistory building and make note of where the spray hits the ground. Then you walk up to a window 5.0 m higher and fire the squirt gun again, discovering that the water goes 1.5 times as far.
asked by leila 
math
you have 6pieces of wood, you have to put them together to make a picture frame two pieces are 8in long,two are 6in long and two are 4in long. Using 4 of the pieces how many rectangle picture frames can you make? Would it be two?
asked by Jill 
projectile motion
A home run just clears a fence 105 m from home plate. The fence is 4.00 m higher than the height at which the batter struck the ball, and the ball left the bat at a 31.0° angle above the horizontal. At what speed did the ball leave the bat
asked by leila 
Chemistry
How many pi bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
mathalgebra
how do i solve this using the substitution method 3x+2y=7 2x3y=4 x=72y/3 2(72y/3)3y=4 this is where i get stuck help would be much apprieciated
asked by peter 
Physics
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 245 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +2.7 m/s relative to the shore, and then hops onto an identical
asked by Jeffrey 
math
What is 35% of 63? a. n x 0.35 = 63;180 b. n= 35 x 0.63; 22.05 c. n= 35 x 63; 2,205 d. n= 0.35 x 63; 22.05 i thought it was b or d?
asked by Lilly 
Physics
Suppose two blocks of ice are heading toward each other. block A has a mass of 4.24 kg and is traveling at 2.24 m/s. Block B has a mass 4.42 kg and is traveling at 2.24 m/s in the opposite direction. After the collision they are traveling in the same
asked by Mayte 
college
Hi, I just want to make sure I am doing this assignment correctly.The question is: How are medical coding, physician, and payer fees related to the compliance process? I believe that they are related because the medical coding specialist is required to
asked by Aly 
linear algebra
Find the equation of the plane for which each point is equidistant from P(2,1,1) and Q (4,7,9). Show all work
asked by Stephanies 
geography
Because the Western Ghats block the monsoon winds, the interior of the subcontinent has a climate that is
asked by Anonymous 
Physics
One gram of water changes from liquid to solid at a constant pressure of 1.00 atm and a constant temperature of 0°C. In the process, the volume changes from 1.00 cm3 to 1.14 cm3
asked by Mike 
Maths
Express Each percentage as a fraction in it's lowest term? 25%, 60%, 45%, 8.2%, 90%, 88.6%, 49.6%, 65%,8%, 98%, 94%, 76%, 20%, 57%, 32.4% and 30% Please Help!
asked by Lucy 
Physics  Free Fall
A stone was thrown into the air and returned after 4.2 seconds. a) At what speed was the stone thrown? (20.6)
asked by Brianna 
chemistry
How does the outer nth level in electron configuration compare to the period? and which level would be the exception?
asked by Anonymous 
chemistry
What is the volume of 1.40 moles of nitrogen gas at 20.0°C and 770. torr?
asked by Kiesha 
College Algebra 2
(x^26xy+y^2) + (3x^24y^2)
asked by Jesus 
algebra
Use muliplying by 1 to find an expression equivalent to 10/13 with a dominator of 39a Please kindly help. I don't understand what to do. Thanks!
asked by tiffany 
Chemistry please help!
Suppose you had 5 gallons of sodium hydroxide solution which had a concentration of two pounds of soduium hydroxide per gallon. What is the total amount of sodium hydroxide?
asked by Kisha 
ap physics
A 22.7 kg mass attached to a spring scale rests on a smooth, horizontal surface. The spring scale, attached to the front end of a boxcar, reads T = 21.9 N when the car is in motion. If the spring scale reads zero when the car is at rest, determine the
asked by annie 
inter Algebra
A startup company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs 4300 To produce. find the price that will
asked by linda 
Physics
A series of waves traveling at 200 m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is ____ meters from a corresponding point 3 crests away. a. 0 b. 1.5 c 2.7 d 4 e 6 f 12 g 16 h 30,000 I have no clue
asked by Jael 
Precalculus
How would you solve an exponential equation like this... 2^(3x+1)= 3^(x2)
asked by Juliet 
inter Algebra
Pick a car and find its top speed. Assuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground: 1.) When will the car land back on the ground? 2.) When would the car be traveling the
asked by linda 
chemistry
If a sample of pure cadmium has a mass of 18.2 grams, how many moles of cadmium are in the sample?
asked by hippie 
english
I have to wrtie a paragraph in which I make claim, state thesis, can not use "For instance or for example and support with 4 examples.I choose this prompt "The internet is a much better resource for students than a library" Please tell me how to start this
asked by Lisa 
math
atrtie and Billy both shop at the same local grocery store between 5 and 6 in the evening.The last time they saw each other was on Tuesday.Artie shops every five days and Billy shops every days.What day of the week will they next run into each other,
asked by YASMINE 
Chemistry
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation? H2(g) + Cl2(g) 2 HCl(g)
asked by Kiesha 
inter Algebra
A start up computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs $300 to produce. Find the price that
asked by linda 
SPEED and VELOCITY
I thought that they were the same thing. Are they not? What would be some examples for Velocity
asked by Anonymous 
math
Louis and his family are going to the zoo. The price of a bus ticket is $1.00, but the family has some coupons. If Louis pays full price, his wife pays 2/3 of the regular price, and the two children pay 1/2 of the regular price. How much will it cost for
asked by shun 
chem
would the molar mass of a volatile liquid, calculated using the procedure in this experiment, be incorrectly high, incorrectly low, or unaffected by the following? You forgot to measure the volume of the flask, so you used the volume printed on the g=flask
asked by thomas richards 
math
In the diagram show, every point in the plane with integer coordinates is labeled with a positive integer by a “rectangular spiral” process that begins at the origin and works its way out. What are the coordinates of the point labeled 1009?
asked by sky 
math
1/7 as a percent?
asked by Lilly 
inter Algebra
r+s=5 3s+2t=1 4r+t=14 ican u breakdown the answer I get half way though i forgot the last pat wheater i put it back into the original equationn alot of steps i get lost
asked by linda 
Science
A roller coaster is moving at 10 m/s at the top of a hill and 22 m/s at the bottom of the hill two seconds later.Explain how to find the average acceleration of the roller coaster, then find the average acceleration.
asked by Tay Davis 
phys hmwk
A spring that is .7m in length elongates to 1.06 m when a 20 newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 newtons of force is exerted on it? Do i use the hooke's constant equation for this? if
asked by Jarod 
physics
What length pendulum will produce a period of 1.0s?
asked by hannah 
Calculus
find dy/dx and d^2y/dx^2 of 3x(y^2) 2y=2 please give the answer not an example that dosent help me
asked by smokey 
science Help for little brother
I have no clue how to do this... For a science fair experiment, you decide to testa cartain type of plant to see how well it can grow when it is kept out of sunlight. For two weeks, the plant leaces stay greean then they begin to look yellow. Use the terms
asked by Bridgett 
Algebra HELP
how to solve this equation in the real number system: 2x^(3) + 3x^(2) + 2x + 3 = 0 steps please
asked by Amy 
Chem
The heat of combustion of octane (C8H18) is 47.8 kJ/g and one gallon of C8H18 has a mass of 2620 g. If a car using octane is driven 10,000 miles in one year and gets 25 miles per gallon of octane, what is the total energy consumption? 1. 5.01 × 107 kJ 2.
asked by Kai 
Maths
what are these fractions as pencentages: 2/3 1/13 9/23 4/15 6/7 3/7 2/7 and 2/21 Please Help!
asked by Amy 
accounting
OBX Mufflers accepted a fivemonth, 7.5% interest, $2,400 note from ABD Motors on June 1, 2008. The entire balance is payable at the note's maturity. What will be the total payment on October 31, 2008? Total payment= $
asked by Joyce 
Chemistry 111
Whatis the gas produced when you add NaHCO3 to methyl salicylate?
asked by Gaby 
U.S. History
What is proportional representation? How does it work? I've googled it and the answers I'm getting are super lengthy, and hard to understand. If it helps, I am currently studying the Great Compromise/The Connecticut Plan of Govt. Make it short, sweet, and
asked by LouLou 
To Aly
You have posted the identical post several times, but obviously did not take the time to read the responses you have received. Please scroll down and find your earlier posts  and read the responses. Your posts are blocked for the time being, to give you
asked by Writeacher 
physics
what is theta, the x component, and the y component if you know the following standard vector notation: 239 m @ 261 degrees magnitude: 239 m navigational angle: 261 quadrant:3
asked by Haley 
math correct or not?
1. 19 is what percent of 40 a. 19=n x 40;47.5% b. 40=19 x n;2.1% c. 40=19 x n;40.4% d. 19=n x 40;52.3% is it a? 2.64 is 80% of what? a.64 x n=80; 0.8 b.0.64 x n=80; 125 c.60= 0.80 x n;80 d.80=64 x n;1.3 is it c?
asked by Lilly 
biology nutrition
What plant did the greeks use as a digestive tonic when they had overeaten other foods?
asked by Lindsey 
VELOCITY
What are some examples of velocity?
asked by Anonymous 
Physics
does a baseball thrown at 100 miles per hour have a lot of force?
asked by Rose 
accounting
O'Hara Inc. made sales of $310,000 during 2008, it's first year of operations. Of this, $15,000 remained in accounts receivable at the end of the year. Additionally, the company paid and incurred $270,000 in expenses during the year. The company also
asked by Joyce 
PHYSICS CIRCULAR MOTION GRAVITATIONAL CONSTANT
Three masses are arranged in an (x, y) plane. 7 kg (3,1) 8 kg (0,0) 9 kg (1,2) a) What is the magnitude of the resulting force on the 8 kg mass at the origin? The universal gravitational constant is 6.6726 × 10^−11 N · m^2/kg^2. Answer in units of N.
asked by Jaylee 
Calculus
A baseball diamond is a square with side 90 feet. A batter hits the ball and runs toward first base with a speed of 24 f/s. At what rate is his distance from second base changing when he is halfway to first base?
asked by John 
physics.
knowing the following: standard vector notation: 46.9 km@ 32 degrees magnitude: 46.9 km theta 58 quadrant 1 x component 24.9 y component 39.7 What would the navigational angle be
asked by Sydney 
EDU310
What roles do school teachers play in their community
asked by Anonymous 
iloj
The number of students attending the fall play was 150 more than the number of adults attending. Students tickets cost $3, and adults $5. A total of $4730 was collected. How many students attended the play?
asked by kk 
Physics
A 0.400 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5.80 m/s. The wad of putty sticks to the block. Is the mechanical energy of this system
asked by Josie 
econ 312
How has the US GDP fared during the last couple of years?
asked by larry 
english
ants came to our picnic.
asked by Anonymous 
chem
Liquid water has a density of 1.00g/mL at 10.0C and .996g/mL at 30.0C. Calculate the change in volume that occurs when 500mL of water is heated from 10.0C to 30.0C.
asked by ESTR3LLA 
English
I wrote a paper on Beloved, now I am required to do a MLA Documented Research Paper on this topic. I am stuck on how to begin with a Thesis Statement (subject and predicate)
asked by Tyler 
math
Bob makes 5.5% commision selling eletronics. How much commission dose she make if she sells a flatscreen TV for %10,000? how would i solve this?
asked by Lilly 
science
I have no clue how to do this... For a science fair experiment, you decide to testa cartain type of plant to see how well it can grow when it is kept out of sunlight. For two weeks, the plant leaces stay greean then they begin to look yellow. Use the terms
asked by Bridgett 
Physics
When work is done to increase the potential energy of an object without increasing its kinetic energy, is the net force acting on the object greater than zero?Explain.
asked by Nicole 
social studies
what are ten adjectives that describe road transportation
asked by allen 
history
what are ten adjectives that describe water transportation
asked by allen 
Chemistry Help!!!
1) When hydrazine (N2H4) is burned in a 253g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is
asked by Sarah 
Physics
Suppose two blocks of ice are heading toward each other. block A has a mass of 4.24 kg and is traveling at 2.24 m/s. Block B has a mass 4.42 kg and is traveling at 2.24 m/s in the opposite direction. After the collision they are traveling in the same
asked by Mayte 
math
you have 6 pieces of wood 28in,26in,24in to make a rectangle picture frame using 4 pieces of wood how many frames can you make? (rectangle frames) Would it be 2?
asked by Jill 
Chemistry
What is the maximum volume of 30 M NaCl that can be prepared from 60 g NaCl(s)?
asked by Astrid 
Math
A Classroom contains a total of 27 students. The number of girls is 7 more than three the number of boys. How many boys are in the class?
asked by Camille 
history
what are ten adjectives that railroad transportation
asked by allen 
Physics
You wish to make a mass on a spring oscillate with a period of 1.00 seconds, to count heartbeats. The spring constant is 50.0 N/m. What mass should you put on the end of the spring?
asked by Laura 
Math
What the difference of inverse and linear in mathmatical terms
asked by Cheralia 
Physics
You are standing 0.75 m from your bathroom mirror in the morning. How far away is your image from you?
asked by Laura 
chem
A 4.1 L sealed bottle containing 0.25 g of liquid ethanol, C2H6O, is placed in a refrigerator and reaches equilibrium with its vapor at 11°C. The vapor pressure of ethanol is 10 torr at 2.3°C and 40 torr at 19°C. (a) What mass of ethanol is present in
asked by Anonymous 
calculus
A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640  16t^2 y'= 32t When does the ball hit the ground, and how fast is it going at that time? Give
asked by Ashley 
Physics
A train coming toward you at 15 m/s blasts a signal which you hear as 400 Hz. What frequency will you hear after the train passes? Assume the speed of sound is 343 m/s.
asked by Laura 
physics
if earth is having one hole at one of the poles and also having another hole at other pole .if we drop a ball from one hole what will happen to that ball?
asked by naufal 
Physics
A man uses a pulley arrangement to lift a heavy crate.He applies a force that is onefourth the weight of the crate, but moves the rope a distance four times the height that the create is lifted. Is the work done by the man greater than, equal to, or less
asked by Adriana 
World History
The populations of early villages were able to grow mostly due to...?
asked by Nissa 
COM_155
How do i write three sentence using plurals correctly and three sentences using possessives correctly on the topic of how to store personal financial information effectively and efficiently.
asked by Sasha 
Forensics
What is a follicular tag and how can it be used to implicated a suspect of a crime?
asked by Courtney 
math
3.5x2 = 4x+1
asked by allen 
social studies
if you own a factory the factory and any equipment in it are part of your... answer is 7 letters fourth letter is an i... i have been through everything in my study guide and cannot find the answer for this one...
asked by emily 
English
1.Many of the Chinese people are farmers. 2.They generally work their farms by land. 3.Chinese farmers usually use hand tools instead of large machines. 4.Farmland throughout China is carefully prepared, planted, and weeded. 5.Farmers also harvest their
asked by Clayton 
variables
solve for w 2(w4)=4w+26
asked by desmond 
calculus
a rectangular box is to have a square base and a volume of 20 ft cubic if the material for the base costs 30 cent per square foot, the material for the sides cost 10 cent per sqaure foot, and the material for the top costs 20 cents per square foot,
asked by soraya 
Europe
HOw does the physical geography of Europe affect its political, social, and economic charateristics?
asked by Lucy 
social studies
you should always read the ______ before you a buy a product... answer is 9 letters long third letter is an a...
asked by emily 
social studies
Opening statement: Give who,what,when,where,why of the topic. The British Navy in the American revolution. In one sentence.
asked by Michelle 
math
Artie and Billy shop at the same grocery store between 5 and 6 in the evening.The last time they saw each other was on Tuesday.Artie shops every 5 days and Billy shops every 4 days.What day of the week will they next run into each other at the
asked by YASMINE 
5th grade
Possessive nouns A communities' elected officials were often members of the gentry.
asked by Macaila 
Chemistry
How many pi bonds are in ritalin. I counted 4 pi bonds(double bonds), and 18 sigma bonds(single bonds> I want to make sure I didn't miss count anything.
asked by Kristy 
chemistry
Surface tension explains which of the follow ing phenomena? I) A piece of aluminum foil floating on a lake II) A bowling ball sinking more slowly through molasses than through water III) Separating ethanol from water by distillation IV) Water beading on a
asked by Bob 
Physics  momentum
Two hockey players are traveling at velocities of v1 = 15 m/s and v2 = 16 m/s when they undergo a headon collision. After the collision, they grab each other and slide away together with a velocity of 3.8 m/s. Hockey player 1 has a mass of 121 kg. What
asked by J Velji 
Science
What is the difference between rhyolite and basalt?
asked by Jan 
EDU310
Even though the education profession continues to be a lower paying profession than other career opportunities, why do people continue to become teachers
asked by Anonymous 
Physics
A vertical spring (ignore its mass), whose spring stiffness constant is 880 N/m, is attached to a table and is compressed down 0.160 m. (a) What upward speed can it give to a 0.300 kg ball when released? (b) How high above its original position (spring
asked by Joe 
English
I have a few doubts regarding the following questions. Can you help me, please? 1)Provide a definition of "poetry" including its most important elements. 2)Briefly refer to the description of the mirror as provided by Sylvia Plath in her poem "Mirror"?
asked by Franco 
Physics
A 260 kg piano slides 4.1 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 636). The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. (b)
asked by Joe 
Calculus Tangent lines
find the equation of a tangent line of x^(1/4) + y^(1/4) = 4 at the point (16,16)
asked by kevin 
math
Convert 50 mim/h to feet per minute. use dimensional analysis.
asked by Anonymous 
Physics
Two hockey pucks approach each other as shown in the figure below. Puck 1 has an initial speed of 22 m/s, and puck 2 has an initial speed of 14 m/s. They collide and stick together. Find the components along x and y of the initial velocities of both
asked by J Velji 
Chemistry
If the amount of raidoactive iodine123 in a sample decreases from 0.4 to 0.1 g in 26.2 hours, what is the halflife of iodine123?
asked by Erin 
Physics
Two cars have a headon collision. Both were traveling at 28 m/s toward each other. Car A has a mass of 700 kg and car B has a mass of 904 kg. After the impact, what is car B's velocity?
asked by Mayte 
Chemistry
How many grams of NO gas can be produced from 80.0mL of 4.00M HNO3 and excess Cu? 3Cu + 8HNO33Cu(NO3)2 + 4H20 + NO
asked by Erin 
English
Apostrophe's Possessive Nouns Churches best seats were reserved for members of the gentry.
asked by Macaila 
Chemistry
What is a enantiomer?
asked by Alex 
Algebra: exponents
(b^(4y+7))(b^y) / b I got 1 / b^(3y8) but the answer is supposed to be 1 / b^(3y+6) ? could someone write the steps to solving this?
asked by Amy 
English
Apostrophe's Possessive Nouns The "middling class" include a towns shopkeepers.
asked by Macaila 
chem
well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate
asked by julia 
English
How is Hamlet a tragic hero? Explain. My first point is that he was sucked into his own darkness when he was trying to kill Claudius. I need some points...help ):
asked by Alicia 
English
Apostrophe's Possessive Nouns In the middle class, a family's income was produced by both the husband and wife.
asked by Macaila 
English
Apostrophe's Possessive Nouns The wealthier peoples class was called the gentry.
asked by Macaila 
science
freezing and thawing cycle that causes potholes in roads and breaks in rocks ___ ___ ___ ___ ___ ___ ___ ___ ____
asked by kayla 
math
find the measure of the angles in triangle ABC m
asked by bella 
3rd grade
would you use 1000 as a benchmark to estimate the number of shoes in your classroom?
asked by cat 
science
acid produced by some plant roots __ __ ___ ___ __ __
asked by kayla 
8th grade math
seeking help. Justin had $31 before spending q dollars on jeans. how much money remains? (translate phrase to an algebraic expression)
asked by chasity 
math
Determine the selling price of a 15year, 4.725% bond, with $1000 maturity value, with a yield of 4.735%. (Assume twiceyearly interest payments. Round your answer to the nearest cent.)
asked by liz c 
Physics
Mrs. jacobs drops an object from 10 meters, she knows it did 47 joules or work what is the mass of the object?
asked by Anonymous 
science
what is the natural process that causes rock to break down
asked by kayla 
Science(premed)
In premed we are making powerpoints about the anatomy and physiology of the cardiovasculary syemstem and the respiratory system!! So far I finished the cardiovasculary syestem and i am wondering is the Anatomy of a organ the structures that it is composed
asked by Louisea 
English
1.Another Chinese method of irrigation is shown in the lower picture. 2.In flat areas, water is pumped out of the ground. 3.Farmers build ridges around the terraces so that the terraces can be flooded during the growing season. 4.As you can see, water from
asked by Clayton 
calculus
find the points of discontinuity of the given function f(x) =x+3/x2+3x
asked by pinki 
Business Law
I need help answering a question: Sharissa is an American born Muslim girl whose family lives in Florida. Her parents arranged for her to marry into another Muslim family in Iran. She did not wish to get married, so Sharissa ran away to California. She now
asked by tasha 
english
in the book nectar in a sieve, what did rukumani's mother die from?
asked by melisa barnett 
Microeconomics
As part of their chores on Saturday mornings, they have to clean the bathrooms and wash the floors of the house while their parents go grocery shopping. In one hour’s time, Mike can clean two bathrooms or wash six floors. Linda, on the other hand, can
asked by jill 
human resources
during the past few years many firms have laid off thousands of workers, frozen employee pay and eliminated or reduced bonuses. Yet at the same time many of these firms have retained key employees and CEO's by giving them huge compensations increases. This
asked by Anita 
Precalc
In 1992, the average cost of a ticket on a privatelyowned airline was $145. This amount has increased by approximately $51 yearly. How much should you expect to pay for a ticket on this airline in the year 2005?
asked by sk 
us history
I have to do an essay on how abortion has positively or negatively affected american politics over the past 50 years? Im having a hard time answering the question could you answer it for me, so that I could get a little insight on how i should go about
asked by Adie Evans 
Physics
Draw a graph to show the decay of 32g of plutonium241. Use the graph to find the mass of plutonium241 after 20 years.
asked by Heena 
Spanish
How do you write 2:30 in sentence form in Spanish? Please help! Thanks MC
asked by mysterychicken 
intermidiate algebra
pick a car find its top speed. Asusuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground? 2. When would the car be traveling the fastest? 3.)When would the car be traveling the slowest?
asked by linda 
English
1.In the hills, the Chinese make flat terraces. Identify prepositional phrase then tell if adjective or adverb phrase 1.in the hills=adverb
asked by Anonymous 
math
Your favorite restaurant offers a total of 13 desserts, of which 11 have ice cream as a main ingredient and 9 have fruit as a main ingredient. Assuming that all of them have either ice cream or fruit or both as a main ingredient, how many have both?
asked by liz c 
Human Resources
1. How would you go about developing a performance management system for an organization consisting primarily of professionals (knowledge workers) who work primarily with concepts and ideas, such as analysts and software developers, rather than production
asked by Young 
inter Algebra
A band can sell 80 CDs at concert if they sell the Cds for $12 each. For every $1 increase in the price, they will sell 5 fewer Cds. Determine the price for a CD that will maximize the band's revenue.
asked by linda 
probability
In a study of Tibetan children, a total of 1546 children were examined. Of these, 1017 had rickets. Of the 245 urban children in the study, 94 had rickets. (a) How many children living in nonurban areas had rickets? 1Your answer is incorrect. (b) How many
asked by liz c 
statistics
The sample mean to be calculated from a random sample of size n= 4 from a population consists of eight measurements (2, 6, 9, 12, 25, 29, 39, 50) . find the sampling distribution of y .(Hint : there are 70 samples of size 4 when sampling from a population
asked by koky 
math
A full container holds 5/8 of a gallon of liquid. If the container is 4/5 full, how much liquid is in the conatainer? And the answer must be explained using words.
asked by M 
calculus
find a nonzero value for the constant "k" so that f(x) =tan(kx)/x, if x < 0 3x + 2k^2, if x> 0 will be continuous at x=0
asked by pinki 
statistics
Experts consider high serum cholesterol levels to be associated with an increased incidence of coronary heart disease .suppose that the logarithm of cholesterol levels for males in a given age bracket are normally distributed with mean of 2.35 and a
asked by koky 
space
what is the day and nigh time temp. on jupiter
asked by mateo 
math
A full container holds 5/8 of a gallon of liquid. If the container is 4/5 full, how much liquid is in the container? I need answer to problem and how you solved it using words for the explanation.
asked by K 
Math
There are 24 members in a comunity block association. Only 18 ot them came to their winter meeting. What percent of the members attended the meeting?
asked by Michelle 
statistics
The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4. a. What is the distribution of Xbar, the mean number of accidents in one year, (52 weeks)? {Note you do not have to use R for this question, write
asked by cb 
physics
an automobile moving at a constant velocity of 50 ft/sec passes a gasoline station. 3 sec later, another automobile leaves the gasoline station and accelerates at the constant rate of 6.5 ft/sec2. how soon will the second automobile overtake the first?
asked by che_scarlet 
chemistry
would the molar mass of a volatile liquid, calculated using the procedure in this experiment, be incorrectly high, incorrectly low, or unaffected by the following? You forgot to measure the volume of the flask, so you used the volume printed on the g=flask
asked by thomas richards 
College Algebra
Problem: Use Common or Natural Logarithims to solve the exponential equations symboliclly. 2e^7x+4=4 (Round to four decimal places) I tried solving this way 2e/2^7x+4=4/2 e^7x+4=2 ln e^7x+4=ln 2 7x+4=ln 2 7x+44=ln 24 7x=ln 24 7x/7=ln 24/7 x=ln 24/7
asked by Lee 
More chemistry
Hey jiskha. Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that is transferred to other components of the food. Suppose that the microwave radiation has a wavelength of 12.7 cm. How many
asked by Alex 
soc101
Of the different forms of social structure described by Durkheim, Tonnies, and Lenski, which comes closest to matching your social setting? Use the following terms in your explanation: status, role, primary group, and secondary group.
asked by yolanda 
physics
An arrow is shot horizontally off a 100 m high building. A target is dangled from a rope 204 m away. How far off the ground do you have to dangle the target from the arrow to hit it?
asked by Jennifer 
physics
An elevator (mass 4175 kg) is to be designed so that the maximum acceleration is 0.0700g. What is the maximum force the motor should exert on the supporting cable? What is the minimum?
asked by Meghan 
Physics
Does an object moving in a circle obey the law of inertia? Which way would it move if there were no net force on it?
asked by Jen 
Chemistry
Suppose a student is measuring the optical rotation of a 1 M sample of (S)() Limonene. The path length is 13cm. What optical rotation should the student expect to measure?
asked by Sunny 
physics
A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.71 of the person's regular weight. Calculate the acceleration of the elevator, and find the direction of acceleration.
asked by Meghan 
physics
A material of unknown composition with an initial length of 2.9 m is found to expand by 0.37 mm when it is heated by 15 K. What is the coefficient of thermal expansion of this material? K1
asked by Rayler 
physics
A person jumps from the roof of a house 4.9 m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 m. The mass of his torso (excluding legs) is 46 kg. (a) Find his velocity just
asked by Hannah 
physics
If the coefficient of kinetic friction between a 37 kg crate and the floor is 0.31, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if µk is zero?
asked by Hannah 
geometry
Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?
asked by Justice 
11 grade physics
A force of 23.0 N is required to start a 3.0 kg box moving across a horizontal concrete floor. (a) What is the coefficient of static friction between the box and the floor? 1 (b) If the 23.0 N force continues, the box accelerates at 0.50 m/s2. What is the
asked by Cameron