Questions Asked on
September 15, 2013

chemistry
To what pH should you adjust a standard hydrogen electrode to get an electrode potential of 0.124V V ? (Assume that the partial pressure of hydrogen gas remains at 1 atm.)
asked by JAC 
physics
A copper wire has a resistance of 0.425 at 20.0°C, and an iron wire has a resistance of 0.455 at the same temperature. At what temperature are their resistances equal?
asked by Justin 
physics
A battery of emf and negligible internal resistance is connected to two resistances R1 and R2 in series. What is the potential difference across R2?(a)E(R1+R2)/R2(b)E(R1+R2)/R1(c)ER2/R1+R2(d)ER1/R1+R2
asked by john 
science
An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.
asked by angie 
chemistry
The pKb of pyridine is 8.75. What is the pH of a 0.205M solution of pyridine?
asked by Anonymous 
math
There is something wrong with this definition for a pair of vertical angles: “If AB and CD intersect at point P, then APC and BPD are a pair of vertical angles.” Sketch a counterexample to show why it is not correct. Can you add a phrase to correct it?
asked by andrea 
Geometry
The running track at the right is a rectangle with a half circle on each end. FI and GH are diameters. Find the area insidevthevtrack to the nearest tenth.
asked by Sebastian 
physics
As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform crosssection. You use up 95% of the nichrome and make a wire with a resistance of 0.840 Ω. The resistivity of nichrome is 1.00 106 Ω · m and its
asked by Justin 
Physics
Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands twice as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building
asked by Tonya 
Physics
If you simultaneously drop a pair of tennis balls from the top of a building, they strike the ground at the same time. If one of the tennis balls is filled with lead pellets, will it fall faster and hit the ground first? Which of the two will encounter
asked by PLEASE HELP ME 
physics
(a) What is the hot resistance of a 24 W light bulb that runs on 120 V AC? (b) If the bulb's operating temperature is 2700°C, what is its resistance at 2570°C?
asked by Justin 
Physics
A map suggests that Atlanta is 730 miles in a direction 5.00° north of east from Dallas. The same map shows that Chicago is 560 miles in a direction 21.0° west of north from Atlanta. The figure below shows the location of these three cities. Modeling the
asked by <3 
physics
(a) What is the hot resistance of a 24 W light bulb that runs on 120 V AC? (b) If the bulb's operating temperature is 2700°C, what is its resistance at 2570°C?
asked by Justin 
math
how many four letter words can be made fro the letters p,a,y,m,e,n,t with no repetition of any letters?
asked by charlie 
trg
A plane flies in a direction of N70°E for 80 km and then on a bearing of S10°W for 150 km. a How far is the plane from its starting point? b What direction is the plane from its starting point?
asked by p 
Algebra 2
The air resistance R(in pounds) on a racing cyclist is given by the equation R=0.00829s^2 where s is the bicycle's speed (in miles per hour). a. What is the speed of a racing cyclist who experiences 5 pounds of air resistance? b. What happens to the air
asked by Kylee 
physics
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0 V batteries of a 740 kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 200 m high hill in 2.00
asked by Justin 
History
2.What sensory imagery can you use to describe the Taino perspective on the encounter with the Europeans? Does anyone have examples on this?
asked by Gabby 
English
Which sentence is in the active voice? The girl jumped on the trampoline. The cake will be served to the queen. Is it the first one? But, if so, then how can the second sentence be written in the active voice?
asked by Anonymous 
Physics
A tennis ball is struck and departs from the racket horizontally with a speed of 29.1 m/s. The ball hits the court at a horizontal distance of 19.0 from the racket. How far above the court is the tennis ball when it leaves the racket?
asked by Katy 
Physics
At the 18th green of the US Open, Tiger Woods needs to make a 20.5 ft (6.25 m) birdie putt to win the tournament. When he hits the ball, giving it an initial speed of 1.57 m/s, it stops 6.0 ft. (1.83 m) short of the hole. Assume the deceleration caused by
asked by Tonya 
chemistry
Suppose there are two known compunds containing the genetic elements X and Y. You have a 1.00g sample of each compounds. One sample contains 0.33 g of X abd the other contains 0.42 g of X. Identify plausible sets of formulas for these two compounds.
asked by london 
physics
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0 V batteries of a 740 kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 200 m high hill in 2.00
asked by Justin 
MATH
What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9?
asked by Speedo 
Microscopes
Which part of the microscope should you use to carry it? a. the stage b. the eyepiece c. the focus knobs d. the arm Is it the arm?
asked by Anonymous 
Physical Education
What are the components of fitness? Are aerobic and anaerobic fitness, types?
asked by Juanita 
math
if the expression(2ya)4 is equivalent to 16y8 what is the value of a
asked by Brit 
programming
where are the errors the pseudocode debugging exercise // This application reads student typing test data // including number of errors on the test, and the number // of words typed per minute. Grades are assigned based // on the following table: // Errors
asked by Andre 
Physics
A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 3.96 m to the north, d2 = 2.06 m northeast, and d3 = 1.13 m at 30.0° west of south (see the figure). Starting at the same initial point,
asked by <3 
Classical Mechanics
During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d = 2.0 m in front of Alice. They are both running with the same speed of v0= 5.0 m/s. When the finish line is a distance L= 45.0 m
asked by rya 
Physics
A rocket is launched at an angle of 50.0° above the horizontal with an initial speed of 105 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move
asked by <3 
Math
Lin ride her bike 20 miles in 15 minutes. If she rode at constant speed what is the unit rate and how do you know ?
asked by Anabelle 
pelling
list of long a spelling words for a second grade student
asked by aliyah 
statistics
Suppose scores on the mathematics section of the SAT follow a normal distribution with mean 540 and standard deviation 120. ACT math scores are normally distributed with a mean of 18 and a standard deviation of 8. What score on the ACT is equivalent to a
asked by Anonymous 
physics
A pellet gun is fired straight downward from the edge of a cliff that is 13.4 m above the ground. The pellet strikes the ground with a speed of 26.1 m/s. How far above the cliff edge would the pellet have gone had the gun been fired straight upward?
asked by Katy 
Chemistry
When 25.302 is divided by 56.743, the answer should be reported to ____ significant digit(s). The result of the division, 25.302 / 56.743, reported to the correct number of significant digits is _______ When 56.743 is subtracted from 25.302, the result
asked by sabrina 
Mechanics
Calculate the average horsepower required to raise a 200kg drum to a height of 20 in a time of 1:0 minute. Show the solution and answer
asked by Aries 
Physics
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 20.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a
asked by <3 
Physical Science
a rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to the Moon, which is 381,000 km?
asked by Dana 
US History  Explorers
What tool did Henry Hudson use to help him explore? E.x. a compass, etc. What were his parents' names?
asked by Jalita 
Calculus
Find k such that the line [y=5x4] is tangent to the function : x^2kx
asked by Cody 
physics
A police car is traveling at a velocity of 19.0 m/s due north, when a car zooms by at a constant velocity of 49.0 m/s due north. After a reaction time 0.600 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the
asked by Katy 
Physics
An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.
asked by Deidre 
Math
Alpha writes the infinite arithmetic sequence 10, 8, 6, 4, 2, 0... Beta writes the infinite geometric sequence 9, 6, 4, 8/3, 16/9,... Gamma makes a sequence whose n^th term is the product of the n^th term of Alpha's sequence and the n^th term of Beta's
asked by Speedo 
understanding observation and behavior
answer to exam 405476RR penn foster
asked by Anonymous 
physics
A boat crosses a river of width 120 m in which the current has a uniform speed of 2.04 m/s. The pilot maintains a bearing (i.e., the direc tion in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 2.58
asked by Anonymous 
psychology
•Why is determining abnormal behavior or a mental disorder so difficult
asked by toya 
dma 040
42 inch cut into 3 pieces. Piece 2 is twice as long as 1st and 3rd piece. Piece 3 is three times as long as piece 1. How long are the pieces 1st board 2nd board 3rd board
asked by Anonymous 
chemistry
A 47kg sample of water absorbs 3.40×10^2kJ of heat. Part A If the water was initially at 21.5∘C, what is its final temperature?
asked by patrick 
trg
An earth embankment is 27 m long and has a crosssection shown in the diagram. Find the volume of earth needed to build the embankment.
asked by p 
Physics
When nitrogen(atomic mass=14,atomic number=7) is bombarded with neutrons, the collision resulted in disintegrations in which alpha particles are produced. Represent this transmutation in symbolic equation .
asked by Sam 
Stressed out!
I know this site is about homework help but I was wondering if you can kind of help me make a "decision" so I'm a freshman and I'm taking honors history this year. I'm so stressed out from taking notes every night and studying. I have a C in that class
asked by Anonymous 
algerbla
if the square of a postive number is decreased by five times the number , the result is 14. Find the number
asked by Anonymous 
English
1. A lot of studens are studying in the study room. (Can we use the term 'study' room' as a big place where students can study together? Do you have some other expressions for that?) 2. He is in the reading room with his friends to read books. (Is it
asked by rfvv 
Finance
Finance $650,000 for a warehouse with a10.50% 30 year loan what is the monthly payment
asked by Anonymous 
Chemistry
How man moles of sodium phosphate are there in 0.4 liters of 0.1M Na2HPO4 (MW=141.96 g/mol)? 2.) How many millimoles in 200 ml?
asked by Kris 
Algebra
Solve the equation, if possible(answer or no solution); n10=5/6n71/3n
asked by Anonymous 
maths
convert each of these decimal into fraction in its simplest form. a)0.179 b)0.125 c)0.003 d)3.8 e)2.5
asked by richmond 
chemistry
How many cubic centimeters (cm 3 {\rm cm}^3) of olive oil have the same mass as 1.00L L of gasoline? (See the table (Figure 1) .)
asked by uta 
Chemistry
A sheet of aluminum (Al) foil has a total area of 2.119 ft2 and a mass of 2.714 g. What is the thickness of the foil in millimeters? (Density of Al = 2.699 g/cm3? I got 5.108*10^4 cm but that is wrong. (2.714g)/(2.699g/cm^3)/(2.119ft^2) * 1ft/30.48cm =
asked by Andy 
Algebra
Use the distributive law to factor the following: Check by multiplying. 22x+11y+55z =
asked by John 
PHYSICS/SCIENCE
If a Mack truck and a motorcycle have a headon collision, upon which vehicle is the impact force greater? Which vehicle undergoes the greater change in its motion? Defend your answers.
asked by PLEASE HELP ME 
For Loli  persuasion
http://www.jiskha.com/display.cgi?id=1379184170
asked by Writeacher 
Phsyics
A projectile is fired with an initial speed of 61.3m/s at an angle of 44.2∘ above the horizontal on a long flat firing range. (a) Determine the maximum height reached by the projectile. (b) Determine the total time in the air. (c) Determine the total
asked by Tucker 
chemistry
The structural formula, with atoms A, B, and C unspecified, is H B H H C C C H A Br C The formula is C3H6Br2. If the compounds is called 1,2dibromopropane, A, B, and C must be A. A = H; B = Br; C = H. C. A = Br; B = H; C = H. B. A = H; B = H; C = Br.
asked by penn foster 
physics
A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,
asked by Rachel 
Latin
Puer matrem laeti videt.
asked by Bryce 
English
1. I'm going to cut tall grass around my ancestor's tomb/grave on Chuseok. 2. I am going to worship at my ancestor's grave. 3. I am going to pay a visit to my ancestor's grave. 4. I'm going to visit my ancestor's grave and worship at the grave. Then I will
asked by rfvv 
Chemistry
How many milligram of lysozyme (MW=14,600 g/mol) are needed to make 3 liters of a 10^6 M solution?
asked by Kris 
physics
A body immersed in liquid has an upthrust of 140N with a density of 12kg calculate the velocity
asked by Anonymous 
algebra 2
a(b+c)=bc
asked by izzy 
algebra
I need to find the profit for products sold. P(x) = 750x^2 + 15,000x x is the number/products sold Can you step by step please
asked by Alaska Diamond 
finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the
asked by chris 
Math
Help on subtracting integers
asked by Anonymous 
Heeeeeeeelp
Read the following instructions in order to complete this assignment and review the example of how to complete the math required for this assignment: Use the properties of real numbers to simplify the following expressions: 2a(a – 5) + 4(a – 5) 2w –
asked by Myya 
dma 040
Area of a certain state(state1) is five times the area of another state(state2). If the sum of their area is 6,000,000 square miles, find the are of each state state1 state2
asked by Anonymous 
dma 040
Sports competition, France won more medals than Italy who won more medals than Korea. The total number of medals won by three countries is three consecutive integers who sum is 37, find the number of medals won by each France Italy Korea
asked by Anonymous 
Finance question
Suppose CAPM is true. You are considering investing in an equally weighted portfolio of two stocks, A and B. The betas of these stocks to the market factor are 1.10 and 0.80, respectively. The total return volatilities of stocks A and B are σA=0.20 and
asked by jerick 
Boston Tea Party
With the Boston Tea Party was it a group of British colonists who boarded the ships and destroyed the tea by dumping it in the Boston Habor?
asked by Blake 
math
Data collected from those who reported their credit card debt showed that the lowest average annual percentage rate on its credit cards was 0.019. Represent this as a percent. The lowest APR on its credit cars was __% ?
asked by Taylor 
Physics
From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 9.40 m/s and angle of 23.0° below the horizontal. It strikes the ground 6.00 s later. Initial velocity components: vx = 8.65 m/s vy = 3.67 m/s
asked by <3 
math
Write the mixed number as a percent 6 ¾ Would it be 6(0.75) = 45% ?
asked by Taylor 
Economics/Business
Our large companies seem to be largely run by hired managers who work for salaries and who are not ownerentrepreneurs. How then do we get the profit motive into large companies?
asked by Jonathan 
chemistry
If a gas is made up of 3 parts hydrogen and 2 parts nitrogen...how much percentage of hydrogen is the gas made up of? The answer says 60%, but I don't understand how the came up with the answer
asked by mae 
Math
5x/7+1/72x/46/4
asked by Jaime 
chemistry
A 20.9 g sample of nitrogen gas combines completely with 4.5 g of hydrogen gas to form ammonia. What is the mass of ammonia formed? A 12.7 g sample of X combines with a 24.4 g sample of Y to form the compound XY2. What is the mass of the reactants?
asked by sasha 
chemistry
A 18.2 g sample of an unknown compound contains 0.7 g of oxygen. What is the percent by mass of oxygen in the compound?
asked by lea 
chemistry
So I did an experiment at school in which we had to form 2.00 grams of precipitate by mixing 2 hydrated compounds. So for the products, obviously one of it is water, and the other 2 products are compounds, one of which, is insoluble. So when I measured the
asked by K 
physics
From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial SPEED of the pebble is 9.7 m/s and it was thrown DOWN (watch your signs).
asked by Nathalia 
Science
which of the following correctly identifies an SI unit and the tool that is used to measure it? a. meter, ruler b. degrees Fahrenheit, thermometer c. gram, scale d. millimeter, meniscus I can't decide between a and c.
asked by Anonymous 
Chemistry
A 18.2 g sample of an unknown compound contains 0.7 g of oxygen. What is the percent by mass of oxygen in the compound?
asked by taja 
Pysch
______is to biological factors as ___________ is to cultural factors? a. Race; ethnicity b. nurture; diversity c. Individualism; collectivism d. Ethnicity; race
asked by Jill 
biology
what are the differences between a vein and an artery? Give your answer with reference to specific examples. I don't know how to refer to specific examples...please help me..
asked by Zi 
Math
Find k such that the line [y=5x4] is tangent to the function : x^2kx
asked by Cody 
Statistics
The annual snowfall in a town can be represented by the Normal model N(46, 6.8). In about 2.5% of the years, the annual snowfall in this town will exceed: A) 46 inches B) 39.2 inches C) 52.8 inches D) 59.6 inches E) 66.4 inches I don't know how to set this
asked by Robby 
Park University
The number of arrivals per period is distributed according to the Poisson with an expected value of 0.75 unit per period. The cost of waiting per unit per period is $3.20. The facility cost for serving one unit per period is $5.15. What expected service
asked by Joseph 
physics
By trial and error, a frog learns that it can leap a maximum horizontal distance of 1.49 m. If, in the course of an hour, the frog spends 32.5 % of the time resting and 67.5 % of the time performing identical jumps of that maximum length, in a straight
asked by Huiming 
algebra
if f(X)=x^1/3+ 1/3x what is the value of f(27)
asked by andrew 
social studies
what is a culture and the types of culture
asked by richmond 
Research
Is it possible for someone to become deaf and mute at the age of ten while they were perfect before? If so, then what could be a reason that would lead them to lose both hearing and talking? Thank you in advance! All help is greatly appreciated :)
asked by Samantha 
Chemistry help needed
How many milligram of lysozyme (MW=14,600 g/mol) are needed to make 3 liters of a 10^6 M solution?
asked by Kris 
conputer
what is an internet and their advantage and disadvantages
asked by richmond 
algebra
how do i solve ã(x+4) =y+2 solve for x.
asked by Rick 
algebra
I need to find the x coordinate of the vertex of parabola defined by f(x)= 5x^2 + 9x + 2 Can you please show steps. Thank you
asked by Alaska Diamond 
104 cilivi history
the Indian ocean was largely spared largescale warfare because
asked by colleen 
algebra
How do I solve this problem ã2x 7+8=11
asked by xavier 
His 104 civilization 11
the Indian ocean was largely spared largescale warfare because
asked by colleen 
ALGEBRA
HOW DO I SOLVE THIS PLEASE 5ãx =ãx 12
asked by xavier 
finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the
asked by chris 
Mechanics
A 1000kg car whose motor delivers a maximum power of 40.0 hp to its wheel can maintain a steady speed of 130 km/h on a horizontal roadway. How large is the friction force that impedes its motion at this speed? Show the solution and answer
asked by Jason 
Algebra
simplify by removing parentheses and collecting like terms. 48q22( 7+37q )
asked by John 
mathT
The integer 90can be expressed as the sum of z consecutive integers. The value of z could be any of the following except A) 3 B) 4 C) 5 D) 6 E) 9
asked by fran 
Social Studies
For what does the Race to the Top contest award states?
asked by Anonymous 
finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the
asked by chris 
English
I'm embarrassed I can't figure this out on my own but I can't so here I am. I was giving these words and told to put them in " Letter by Letter Alphabetization " I'm confused by this and don't know how to figure out which word goes first and why. Please
asked by Adam 
algebra
can someone help me with this please 2/3 ãx =8
asked by Rick 
Physics
Two colliding objects exert equal and opposite forces on each other (Newton's Third Law). However, acceleration experienced by an object is inversely related to its mass: the smaller the mass, the larger the acceleration for a given force (pp. 4950).
asked by Need help badly 
math
How do I write this decimal, 0.44 as a percent?
asked by Taylor 
chem quantity
a sample of soil containing hydrated barium chloride potassium chloride plus inert material weighd 0.8076g. tha sample was then dissolvd in water n treated with silver nitrate.tha resulting precipitate was collectd n found to weigh 0.5846g. calculate tha
asked by shanice 
quantummechanics
The following circuit is designed for testing whether u⟩=v⟩. The threequbit gate in the middle is called the controlled SWAP gate, which swaps the last two qubits if and only if the first qubit is 1 (a) If u⟩=v⟩=+⟩, what is the probability
asked by Anonymous 
arithmetic
If I WALK FROM MARKER 8.8 MILE TO MARKER 11.8 MILE HOW FAR IS THAT?
asked by Carlos 
physics
WHAT IS THE REASON BEHIND THE JISKHA"S TEACHERS TO BE NOTHING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(except Writeacher and STEVE) ARE THEY DAFT OR NUISANCE!!!!!!!!!!!!!!!!!! ANSWWER Me QUICKLY !!!!!!!!!!!!!
asked by sou 
physics
I=0.5E0EO²C where E0 is the permitivity of the vacuum and C is the velocity of light. a)Show that the units of the equetion are consistant b)A certain heliumneon laser emits 0.20mW in a beam of cross sectional area 3.0mm.Determine the peak values of the
asked by nnanga 
biology
Question: How many hydrogens are in this image? Image: oi43.tinypic[dot]com/2hxwql1.jpg (Replace [dot] with a period (.)) Oiriginal Question: (A) Enter the formula for Tamiflu by typing the number of each atom in the blanks. If Tamiflu does not contain any
asked by HYDROGEN COUNT 
chemistry
50 compound
asked by rufa mae 
science
which of the following correctly identifies an SI unit and the tool that is used to measure it? a. meter, ruler b. degrees Fahrenheit, thermometer c. gram, scale d. millimeter, meniscus I can't decide between a and c.
asked by Anonymous 
physics
An electrical source with internal reistance r is used to operate a lamp of resistance R. What fraction of the total power is delivered to the lamp?(a)R+r/R(b)Rr/R (c)R/R+r (d)R/r
asked by Roy 
Creative Writing
"I'm sorry," her voice was broken by her tears, "I'm so, so sorry!" Is that line written properly, or would you write it like [ "I'm sorry." Her voice was broken by her tears. "I'm so, so sorry!"]
asked by Me 
Math
For what constant value a is the following function continuous at x= 10 ? f(x)= (1/x+1/10)/(x+10) when x is not 10 f(x)= a when x= 10
asked by Nicky 
Algebra
Find the average speed Hike 52 miles in 3 days Drive 69 kilometers in 3/4 hour
asked by Sandy 
integrated algebra ME 1
identify the sample and suggest a population from which it was selected. then classify the sample as sample, stratified, or systematic. explain your reasoning. 1} an insurance company checks every hundredth claim payment to ensure that claim have been
asked by DiNasha 
math
What is the fraction as a percent 7/800? I divided 7 by 800 and got 0.00875 and moved the decimal two places to the right, would that be right .875% ?
asked by Taylor 
health care
This week, you will create a PowerPoint presentation to help you prepare for your Final Paper. Submit a 10slide (excluding title and reference slides) PowerPoint presentation that provides an overview of your research thus far for your Final Paper.
asked by Anonymous 
math
i need to know how to work this problem out step by step..[16*11/(49)] thank you
asked by sharolyn 
grammar
my brother played some music
asked by glen 
Physics
A ball is thrown upward from the ground with an initial speed of 23.2 m/s; at the same instant, another ball is dropped from a building 20 m high. After how long will the balls be at the same height?
asked by <3 
algebra
R=ã(3V/ƒÎH) solve for V.
asked by john 
Calculus
f(x) = 4/5x i need to find the derivitave but i don't know how to start this one. I know the derivitave of 4 is just zero, and i know the derivative of 5x is 5. But the answer isn't 0/5. Help please.
asked by Kyle 
Math
Y=2x^2 ;(1,2) ,(3,18)
asked by Jaime 
math
write the verbal rule for the pattern 13, 14, 15, 16. Find the 15th term in each.
asked by angela 
Math
(5x+1)/7(2x6)/4>_4
asked by Jaime 
English
1. What are you going to do for Chuseok? 2. What are you going to do on Chuseok? 3. What are you going to do during Chuseok? (Chuseok is a Korean Thanksgiving Day. What is the difference of the three sentences?)
asked by rfvv 
Chemistry
Calculate the wavelength of a proton with energy 2.45 eV.
asked by Anon 
Flowers for Algernon
Explain Charlie's problems with women. Why does he have trouble getting close to them?
asked by Lee 
law
can any of the common law defenses be applied, or have been applied, to cases involving capital punishment
asked by Patiance 
Chemistry
Moles of Cu in the copper sulfate salt: mass is 90. and there are 5g of copper sulfate
asked by kelly 
Flowers for Algernon book
Think about all the times knives or razors appeared in the story. How could they be symbolic?
asked by Lee 
chemistry
Express the following numbers in scientific notation. (c) 0.9589 (d) 745 (e) 74100 (f) 0.002031
asked by lea 
math
a=(4.8km/h  4.5km/h)/.5h
asked by joe 
Algebra1
6/14=7/x3
asked by Anonymous 
ALGEBRA
5x3y=2xxy solve for x
asked by Snake 
Algebra
Four times a number is eight more than twice the same number
asked by Anonymous 
food styles of catering
At which of the following events are you likely to serve only champagne as the wine
asked by cassie 
Physics
A rocket is fired at a speed of 96.0 m/s from ground level, at an angle of 35.0 ° above the horizontal. The rocket is fired toward an 15.2m high wall, which is located 32.0 m away. The rocket attains its launch speed in a negligibly short period of time,
asked by Katy 
Math
Illustrate two reallife example of the fraction 0/6? I need help coming up with the second one. This is my 1st one "The amount of money of six business owners get if the business has a profit of $0."
asked by Lilly 
Chemistry
Expected number of moles of copper oxide (using the emprical formula of copper oxide and the starting moles of Cu)
asked by kelly 
World History
How are paintings similar to or different from public murals created today?
asked by Anonymous 
law
The insanity Defense can be used in cases involving capital punishment, correct?
asked by Patiance 
maths
A truck rolls down a hill subject to acceleration due to gravity and resistance (including air resistance, rolling friction, etc) and the distance si (metres) travelled after ti seconds is observed. Classical mechanics predicts that the distance travelled
asked by help please 
world geography
you are an investor in virginia compny.in order to make a profit,you must encourage people to leave england and move to jamestown.create an advertisement describing the advantages of living in virginia.
asked by jareek 
physics
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.25 m/s. The car is a distance d away. The bear is 39.8 m behind the tourist and running at 7.36 m/s. The tourist reaches the car safely. What is the
asked by Katy 
Science
To determine v max and km of Betagalactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,
asked by Ahmad M. 
Chemistry
To determine v max and km of Betagalactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,
asked by Ahmad M. 
Math
When is 15xy+9y^2+6x^2 divided by 2x+3y. Thank you
asked by Kiki 
Math
When mn+m^230n^2 is divided by m5n, what is the quotient. Thank you
asked by Kiki 
Chemistry
To determine v max and km of Betagalactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,
asked by Ahmad M. 
chemistry
are these two statements true? (a/b)^x = a^x  b^x and (x^a + x^a+b) / (1+x^b) = x^a
asked by sabrina