Questions Asked on
September 7, 2014

Physics
Two cars, A and B, travel in a straight line. The distance of A from the starting point is given as a function of time by xA(t)=αt+βt^2, with α=2.60m/s and β=1.20m/s^2. The distance of B from the starting point is xB(t)=γt^2−δt^3, with γ=2.80m/s^2
asked by Mary 
maths
The rectangle box with square base is open at the top. The maximum volume of the box made from 1200 m2 tin,in m3 is:
asked by Anonymous 
8th grade math
How do you express 3.16 x 10 to the 3rd power in standard decimal notation form.
asked by Tajanae 
Ed. Tech
After creating a column heading and/or typing text within a column, what must you do to move text to the next column? A. Add a column break B. Select the next column and start typing C. Highlight the next column D. Change the page orientation Is the answer
asked by Daisy 
Chemistry
How much energy in kilojoules is released when 25.0 g of ethanol (C2H5OH) vapor at 93.0 C is cooled to 10 C? Ethanol has mp = 114.1 oC, bp = 78.3 oC, ΔHvap = 38.56 kJ/mol, and ΔHfus = 4.93 kJ/mol. The molar heat capacity is 112.3 J/(K.mol) for the
asked by Jhon 
english
Please explain me about the poem two old bachelors by edward lear . summary of the man he killed by thomas hardy
asked by manavi 
Geography
Which of the following is true of the Antarctic Treaty System? A. It allows limited weapons testing of the continent. B. It encourages scientific research. C. Members came from the Antarctic Agreement. D. It limits restrictions of environmental controls.
asked by Sarah Habermehl 
physics
In getting ready to slamdunk the ball, a basketball player starts from rest and sprints to a speed of 11.0 m/s in 2.58 s. Assuming that the player accelerates uniformly, determine the distance he runs.
asked by S 
Physics
Two point charges are located on the y axis as follows: charge q1 = 2.50nC at y1 = 0.700m , and charge q2 = 3.30nC at the origin (y = 0). What is the magnitude of the net force exerted by these two charges on a third charge q3 = 9.00nC located at y3 =
asked by Molly 
chemistry
if the average speed of a helium atom at a certain temperature is 1130. m/s, what is the speed in miles per hour? (1 mi =1609m)
asked by azoz 
business math
. Ludwig borrowed $8,000 on July 20, at 11% interest. If the loan was due on October 17, what was the amount of interest on the loan using the exact interest method?
asked by tanisha 
math
the average attendance of a class from monday to wednesday was 39 and that from wednesday to saturday was 39.5. What was the attendance on wednesday, if the average attendance from monday to saturday was 40 I did this: m+t+w/3=39 w+Th+F+S/4=39.5
asked by Math 
Physics
A car travels in the +xdirection on a straight and level road. For the first 5.00s of its motion, the average velocity of the car is V = 7.11m/s . How far does the car travel in 5.00s ? Thank you!
asked by Eddie 
economics 5
At Western University the historical mean of scholarship examination scores for freshman applications is 900. A historical population standard deviation = 180 is assumed known. Each year, the assistant dean uses a sample of applications to determine
asked by Alejandra 
math
Find the area of a segment AYB if the radius of a circle is 21cm and angle AOB is equal to 180degree.
asked by Nitumoni 
Physics
A charge q1 = 5.00nC is placed at the origin of an xycoordinate system, and a charge q2 = 2.00nC is placed on the positive x axis at x= 4.00cm . If a third charge q3 = 6.50nC is now placed at the point x= 4.00cm , y= 3.00cm find the x and y components of
asked by Molly 
Young Harris College
How much energy is needed to heat 8.50 g of ice from 30.0 C to 70.0 C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(mol.K) for ice and 75.3 J/(mol.K) for liquid water. I got 19.24kJ but it isn't correct!!
asked by Jhon 
science
a man throws a ball of mass 0.5kg vertically upwards with a velocity of 25 m/s.find:[a}the initial momentum of the ball{b}momentum of the ball at the half way mark of the maximum height {given g=10 m/s square}
asked by mansi 
Math
john and bryan share rs 1500. if john gets twice as much as bryan. how much money does bryan have ?
asked by Taha 
teaching in early childhood programs
A teacher notices that the children have created a block town that includes a simple pyramid. The teacher points out the pyramid and talks with them about it, and then encourages them to make more of them. The teacher is employing A. problem solving. B.
asked by Diana 
math
Find the area of a segment AYB if radius of a circle is 21cm angle AOB is equal to 120degree.
asked by Nitumoni 
check and see if correct
Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth My answer would be mouth
asked by Angie 
Physical Science
What volume would 90g occupy?
asked by Molly 
child care
Any business, including a child care facility, must obtain an Employer Identification Number (EIN) to establish its business tax accounts. The EIN is assigned by the A. Internal Revenue Service (IRS). B. local Chamber of Commerce. C. State Department of
asked by ashley 
Physics
A 100kg trolley is being pushed up a rough 30° incline by a constant force. The friction force between the incline and the trolley is 110N. (a) Determine thd value of the constant force that will move the trolley up the incline at a constant velocity of
asked by Slavh 
physics
A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.4 m/s2; after 4.4 s he enters the main speedway. At the same instant, another car on the speedway and
asked by S 
history
what are the major settlements of the 13 colonies? I know Plymouth is MA's and Jamestown is Virginia's
asked by maya 
Algebra
The length of a rectangle is 1 foot less than twice the width, and the area of the rectangle is 21 ft.². Find the dimensions of the rectangle
asked by Heather 
Calculus
A rectangle has one corner in quadrant I on the graph of y = 9 − x^2,another corner at the origin, and corners on both the positive yaxis and the positive xaxis. As the corner on y = 9 − x2 changes, a variety of rectangles are obtained. Express the
asked by Delaney 
Chemistry
A household receives a $155 electricity bill. The cost of electricity is $0.129/kWh.How much energy, in joules, did the household use?
asked by Anonymous 
chemistry
For the electrolysis of molten potassium bromide: Write the equation for the overall reaction.
asked by Shane 
a level chemistry
two most abundant atmospheric gases react to a small extent at 298K in the presence of a catalyst to achieve dynamic equilibrium: N2(g) + O2(g) >/
asked by esther 
pseudocode
write a program that calculates the gross pay and net pay of a weeklly paid employee
asked by marlon 
Chemistry
carry out the following conversions.Enter your answer in scientific notation a)232 amu to grams (b)135 amu to kilograms (c)3.03 amu A to meters (d)3.19 A to nanometers
asked by Abdul 
math
The least common multiple of two numbers is 60, and one number is 7 less than the other number. What are the numbers? Justify your answer.
asked by Anonymous 
economics 6
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western
asked by Mia 
Gr 11 Biology
if you were a snoker, what lung volumes (tidal volume, expiratory reserve volume or vital capacity) would be most affected? i think the answer would be the expiratory reserve volume
asked by kathy 
Chemisty 132
How much energy (in kilojoules) is needed to heat 5.55g of ice from 13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.
asked by Kayla 
science
which of the following best describes a scientific theory?
asked by crazy girl 
Physics
A particle moves according to the equation x(t) = (10 m/s2) t2 where x is in meters and t is in seconds. Find the average velocity for the time interval from t1 = 2.0 s to t2 = 3 s. Answer in units of m/s. Please help! I have no idea how to set this up :(
asked by Christie 
chemistry
convert 140 amu to kilograms (scientific notation)
asked by azoz 
physics
Due to continental drift, the North American and European continents are drifting apart at an average speed of about 3 cm per year. At this speed, how long (in years) will it take for them to drift apart by another 658.1 m?
asked by Sean 
Calculus
Use implicit differentiation to find an equation of the tangent line to the graph at the given point. x + y − 1 = ln(x^5 + y^5), (1, 0)
asked by Felicity 
pre algebra
12. State whether the number 97 is prime, composite, or neither.
asked by Quinten 
Chemistry
59.0 mL of a 1.60 M solution is diluted to a total volume of 268 mL. A 134mL portion of that solution is diluted by adding 111 mL of water. What is the final concentration? Assume the volumes are additive.
asked by Alex 
WORLD GEOGRAPHY
9. Australian vegetation is dominated by various species of acacia and A. cacti. B. marsupials. C. ores. D. eucalyptus. 10. According to the World Health Organization (WHO), AIDS is listed as the _______ main cause of global deaths. A. eighth B. fourth C.
asked by SARAH 
Physics
An 84.9 kg man is standing on a frictionless ice surface when he throws a 2.00kg book at 11.1m/s. With what velocity does the man move across the ice?
asked by Aasim 
Chemisty 132
How much energy (in kilojoules) is needed to heat 5.55g of ice from 13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.
asked by Kayla 
college physics
A 49kg lead ball is dropped from the leaning tower of Pisa. The tower is 54 m high. (a) How far does the ball fall in the first 2.4 seconds of flight? (b) What is the speed of the ball after it has traveled 4.1 m downward? (c) What is the speed of the
asked by Monika 
English
Is this a run on sentence It's cold today remember to bring your jacket.
asked by Kelley 
Business
It's a total of 55 students majoring in History. What is the proportion of MBA students majoring in history. Compute to 95% confidence interval of the proportion of 200 students.
asked by Jessica 
Quick math help
Points EC bisects points AD at C. For each of the following, find the value of 'x' and the measure of the indicated segment. Please correct me if I'm wrong! 1. AC= 3x+6 and CD=2x+14 x=_______ AC=______ Answer: x=8 AC= 30 2. AC= 5x8 and CD=163x x=______
asked by Anonymous 
Math
a photocopy store advertises the following prices: 5 cents per copy for the first 20 copies, 4 cents per copy for the 21st through 100th copy, and 3 cents per copy after the 100th copy. Let x be the # of copies, and let y = the total cost of the
asked by P 
Physics
At one instant a bicyclist is 40 m due east of a park's flagpole, going due south with a speed of 18 m/s. Then, 23 s later, the cyclist is 55 m due north of the flagpole, going due east with a speed of 12 m/s. For the cyclist in this 23 s interval, find
asked by Jimmy 
English
create a few questions on the two old bachelors by edward lear. Please help its urgent
asked by manavi 
Marketing
True or False questions 1. An example of promotional advertising would be a company that advertises that they donate a portion of a product's sales to a charity or health organization. I said false. 2. Architectural displays make the customer feel like
asked by Meghan 
chemistry
in a reversable reaction H2+I2=2HI,what will happen to the equilibrium if the volume is decrease?
asked by Starsha 
Physics
A 330.0 g block is dropped onto a vertical spring with a spring constant k = 234.0 N/m. The block becomes attached to the spring, and the spring compresses 0.26 m before momentarily stopping. A) While the spring is being compressed, what what is the change
asked by Kat 
chemistry
which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite
asked by Emiko 
AP Alegebra
simplify (sqrt(x)+1)/(sqrt(x)1)
asked by Bill 
Marketing
How would you classify WalMart in terms of its position on the wheel of retailing versus that of an offprice retailer?
asked by Rachel 
physics
How long will it take a cat to run 8.2m [N] at an average velocity of 3.7m/s [N]
asked by cate 
chemistry
which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite
asked by Kaoru 
environmental
Explain why statues which are the sources of federal environmental laws can be several pages or several hundred pages.
asked by Anonymous 
Math
Market research tells you that if you set the price of an item @ 1.50, you will be able to sell 5000 items; and for every 10 cents you lower the price below 1.50 you will be able to sell another 1000 items. Let x be the # of items you can sell, and P = the
asked by Anen 
Organic chemistry
A 200.0g sample of glucose(180.16g/mol, Kmp=1.86 degrees celcius/m, mp=146 degrees celcius)is contaminated with 5.000g of table salt, sodium chloride(58.44g/mol, mp=801 degrees celcius). What would the expected melting point of the mixture be?
asked by Anonymous 
physics
the net external force on a golf cart is 390 n north. if the cart has a total mass of 220 kg. what is the magnitude and direction of its acceleration
asked by ange 
Math
Find the exact value of sin(A+B) when angle A is arcsin(8/17) and angle B is arcsin(5/13)
asked by Jason Q. 
pre cal
you decide to buy a car for 25000. each year your car depreciates in value by 5% from its original value. After 15 years though, your used car will only be worth $500 to a dealership. Write a piece wise function for C(t), car value over time, for this
asked by eunice 
statics
two current forces acts at an angle 30 degree . the resultant force is 15 N and one of the forces is 10 N . find the other force
asked by farah 
algebra
Ty uses the function g(x)=0.5+0.2(x1) to calculate the cost in dollars of using a calling card to make a long distance call lasting x minutes.The variable x must be a hole number.graph the function then determine the cost of a 10minute call
asked by jelani 
Physics
Two small plastic spheres are given positive electrical charges. When they are 11.0cm apart, the repulsive force between them has magnitude 0.300N. What is the charge on each sphere if one sphere has four times the charge of the other?
asked by Molly 
geometry  need help with this.
If angle
asked by student 
math
show that csc2 theta  tan2 (90 deg  theta) = sin2 theta + sin2 (90 deg  theta)
asked by avtar singh 
maths
x+2y+3y=6 3x+2y+9z=14 2x+4y+z=7
asked by gauss elimination 
Chemistry (concentrations)
A liquid mixture has 12.6 parts per thousand of MgCl2 dissolved. Calculate the [Cl] in ppt? Im stuck plz help!
asked by Henry 
Quick English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) *** Some may not have DO*** please
asked by Anonymous 
Algebra
A 2 mile cab cost $5. A 6 mile cab costs $9. Write an equation to model the cost: c of a cab ride miles: m.
asked by Kate 
physics
A person swims with a speed v realative to water What dose this mean?
asked by Anonymous 
AP Physics C
as she pick up her riders a bus driver traverses four successive displacements represented by the expression (6.30 b)i(4.00 b cos 40)i(4.00 sin 40)j+(3.00 b cos 50)i(3.00 b sin 50)j(5.00 b)j here b represents one city block,a convenient unit of
asked by Melly 
analytical chm
Analytical Balance which weighing method does one use when drying constant weight? Why?
asked by harune 
Quick English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do. please correct me if I'm wrong! 5. He
asked by Anonymous 
statistical inference
find an estimator for theta from gamma distribution using method od moment
asked by saimi 
chemistry
An ore contains Fe3O4 and no other iron. The iron in a 65.46 gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 37.9 grams. What was the percent Fe3O4 in the sample of ore? Answer in
asked by William 
math
what is a five digit number less than 25,000 if each digits' value is one less than the digit to its right and is divisible by two and four
asked by Anonymous 
math
4÷√2 = ?
asked by wa 
Math
Andy plans to build a rectangular dog pen in his backyard. A portion of the back wall of his house will serve as one side of the dog pen. If the perimeter of the dog pen must be 40 feet, which of the following widths will result in the maximum area? A. 6
asked by Audie 
physics
A rifle with a muzzle velocity of 480 m/s shoots a bullet at a target 45.6 m away. How high above the target must the rifle barrel be pointed to ensure that the bullet will hit the target? Neglect air resistance.
asked by Will 
teaching in early childhood programs
Which of the following is not a strategy a teacher might use in an exploratory play activity? A. Observe attentively and silently. B. Use a challenge statement such as "Make a pattern with three different colors." C. Use a behaviorreflection statement
asked by Diana 
Calculus
Suppose the total area under the curve y=x^2mx+1 from 0 to 5 is 11.3024. Find m. I know that this means that i need to find the integral of the absolute value of x^2mx+1 from 0 to 5 and set it equal to 11.3024, but I am not sure where to go from there.
asked by Ryan 
teaching in early childhood programs
A teacher is concerned about monitoring the progress of individual children in the secondgrade classroom. What would be the best advice to give the teacher? A. Give a test periodically to see if the children have achieved according to the standards set.
asked by Diana 
chemistry
calculate the density of a solid if a cube meassuring 2.04cm on one side has a mass of 124g ......................g/cm3 calculate the mass of a cube the same substance measuring 7.97cm on one side enter your answer in scientific notaation
asked by Abdul 
•teaching in early childhood programs
When assessing the overall layout of a classroom, what two factors should be so clear that children's movement behavior will be directly influenced? A. The amount of childaccessible storage and the presence of children's art materials B. The location of
asked by Diana 
chemistry
1.4602 cm x 2.488 cm x 10.399 cm =??
asked by azoz 
math
How would you write the verbal representation of a decimal?
asked by alexia 
math
The dimension of a closed cuboid box are in the ratio 5:4:3 if the total surface area is 0.94m^2,find the dimension of the box.
asked by Nitumoni 
algebra 2
h(x)=x^3 4. Find the domain, range and intercepts
asked by Anonymous 
algebra
use the foil method (76y)(74y) thanks to who ever can help me
asked by mike R 
The Curiculum
Which of the following approaches helps children in their aesthetic development? A. Having children discuss what they're going to make before they begin B. Varying the materials available for children to use and balancing novel with familiar materials C.
asked by Daniela 
Physics
Two 0.75m long pendulums hang side by side. The masses of the pendulum bobs are 65g and 85g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the
asked by Kayla 
chemistry
19.0 kg /0.036 m(3)(cube)=??
asked by azoz 
acconting
purchased a machine of Rs. 1000000 on 1/1/13, the service life of the machine is 10 years. The company calculate depreciation on straight line basis, which is = cost of the asset/no.of years
asked by rony 
math
What is 12p^7  2p^7
asked by wa 
Physics
A Honda Civic travels in a straight line along a road. Its distance x from a stop sign is given as a function of time t by the equation x(t)= α t^2− β t^3, where α = 1.54m/s2 and β = 5.05×10−2m/s^3 . Calculate the average velocity of the car for
asked by Lekan 
Gr 11 Biology
Which person do you think would be more physically fit: a) an individual with a normal expiratory reserve volume and high vital capacity OR B)an individual with a high expiratory reserve volume and normal vital capacity
asked by kathy 
economics 7
An electronics company advertises that the battery life of its new smart phone with normal usage averages 72 hours. The company says this is one of the desirable characteristics of the phone which makes the phone a better choice compared to competitor
asked by Mia 
The Curriculum
When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During
asked by Daniela 
7th grade LA
Identify the infinitive phrase. 1. While the train was stopped at the station, Bugsy attempted to climb to the top of one of the freight cars. Ans: to climb to the top of one of the freight cars? 2. During the Great Depression, audiences wanted to laugh
asked by Alexis 
Math
Please ,look the Q and answers (Nnn) ..
asked by Nnn 
math
One cubic meter (1.00 m3) of aluminum has a mass of 2.70E+3kg, and 1.00m3 of silver has a mass of 1.05E+4kg. Find the radius of an aluminum sphere whose mass is the same as that of an silver sphere of radius 1.07cm.
asked by andy 
math
341 blank = a number between 115 and 120
asked by jeff 
Math  Urgent
The air temperature is 10 degree Celsius. With the wind blowing at a speed of 15 km/h, this temperate feels like 17 degrees Celsius. How many degrees does the temperature change because pf the wind chill?
asked by Anna 
Math
P;ease help me with the steps to solve this ratio 34:20=2:?
asked by Rayne 
chemistry
What is the wavelength λ of the photon that has been released by−2.05×10−18 J?
asked by pari 
Marketing
Clothing stores, grocery stores, shoe stores, and bookstores, are all examples of what type of channel member? A. retailers B. producers C. wholesalers D. drop shippers A.Retailers is my answer.
asked by Meghan 
Geometry help
Points EC bisects points AD at C. For each of the following, find the value of 'x' and the measure of the indicated segment. Please correct me if I'm wrong! 1. AC= 3x+6 and CD=2x+14 x=_______ AC=______ Answer: x=8 AC= 30 2. AC= 5x8 and CD=163x x=______
asked by Anonymous 
probability
There are four children of diff erent ages in a family. Their mom purchases six di erent gifts and decides to divide the gifts randomly between the children. Assuming that a child can receive no gift or multiple gifts, answer the following questions: (a)
asked by navera 
Physics
What electric field strength would store 17.5J of energy in every 9.00mm3 of space?
asked by Icy 
Geography
What is/are the major cities of Canada? Im confused when it ask for the capital and major cities.
asked by Sally 
English
I have to write a "Descriptive essay" for my composition class and I need help proof reading my essay. This is the third draft I have done. I had to cut out over 400 words. The essay can be no more than 750 words. That is exactly how many I have right now.
asked by Sandy 
Math
What would be the new ordered pairs of reflecting the figure formed by (1, 5), (2, 2), (3, 2), and (2, 5)?
asked by Anonymous 
Math
Sadiq dropped his watch into a lake. The depth of the lake is 5 meters. Sadiq can dive down towards the bottom of the lake at a speed of 2 meters per second, but can swim upwards at a rate of 1 meter per second. How long will it take Sadiq to get his watch
asked by Sadiq 
CalculusMath
f(x) = (1/2)x ln(x^6) (−1, 0) (a) Find an equation of the tangent line to the graph of f at the given point. y=
asked by Felicity 
chemistry
convert 278 amu to grams (scientific notation)
asked by azoz 
Algebra
Ten years ago, Heather was twice as old as her brother David. Today, she is 12 years older than him. How old are they both today? Heather's age today: 27 David's age today: 15 Thanks in advance! I tried using other solutions from Google and just am not
asked by Katie Elizabeth 
Chemistry urgent!
Perform the following operations and express the results in the correct number of significant digits or decimal places. Express all results in scientific notation. Please help me I'm so confused on how to do this!! 15. (1.71 x 10^6)(6.73 x 10^8)/2.25 x 10
asked by Anonymous 
Algebra
Find an equation of the line containing the given pair of points (2,3) and (9,1) in slopeintercept form y=mx+b I think m=2/7
asked by Melissa 
math
18s^9 t^3  2s^9 t^2 = 9 can anyone explain pleases,thanks
asked by wa 
physics
Clint Dempsey takes a free kick and kicks a soccer ball with a mass of 440 grams at 98 miles per hour. what is the momentum
asked by joe 
Math
Does randomization relate to real world data?
asked by Robbie 
Math
Mary has nickels, dimes and quarters worth $12:85. If the number of dimes and the number of quarters is more than twice the number of dimes, how many more dimes are there.
asked by Shelly 
Physical Science
How many grams would occupy 12cm^3?
asked by Molly 
Quick English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do. please correct me if I'm wrong! 5. He
asked by Anonymous 
chemistry
convert 3.43 A(with circle above the A) to meters(scientific notation)
asked by azoz 
chemistry
convert 1.65 A(circle above the A) to nanometers (scientific notation)
asked by azoz 
Quick English help
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) *** Some may not have DO*** please
asked by Anonymous 
Math
When graphing,do I always have to number the scale with a1first?
asked by Anonymous 
geometry
1/8uw +1/8vw
asked by Chris 
math
If 1mechanic can do 4 machines in 6 hours how many machines can 48 mechanics do in 160 hours?
asked by lucas 
physics
A net force of 5000.0 N accelerates a car from rest to 93.3 km/h (meter per second) in 4.1s (a)what is the mass of the car? (b) What is the weight of the car?
asked by Aasim 
Grammar
Write whether each underlined word js an adverb (adv.) or an adjective (adj.). Then, draw a line to the word it modifies. 1. The gates leading into the abbey were bolted and (firmly) sealed. A: Adverb (modifies sealed). 2. The Prince entertained his
asked by Victoria 
Physics
Two 34 −ìC charges are attached to the opposite ends of a spring of spring constant 150 N/m and equilibrium length 50 cm. that is the question I should probably know this but my brain is fried so far all I have is Original length = 50 cm = 0.5 m Let the
asked by Brock 
Physics
Two trains are approaching each other, one at 23 mph and the other at 37 mph. How far apart are they one minute before collision?
asked by Abbie 
science
What's the difference between hypothesis and a theory?
asked by Anonymous 
Math
How many xintercepts and how many local extrema does the polynomial P(x)= x(sqrt)34x have? How many xintercepts and how many local extrema does the polynomial Q(x)=x^34x have? and If a>0, how many xintercepts and how many local extrema does each of
asked by Andrea 
math
A merchant blends tea that sells for $4.40 a pound with tea that sells for $2.30 a pound to produce 120 lb of a mixture that sells for $3.00 a pound. How many pounds of each type of tea does the merchant use in the blend?
asked by help 
Calculus
Using the definition of derivative state the function, f(x) and the value of a for lim as h>0 of (square root of (121+h) 11)/h
asked by Ben 
math
A rectangular box is to have a square base and a volume of 30 ft3. The material for the base costs 33¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 24¢/ft2. Letting x denote the length of one side of the base, find a
asked by kyle 
math
6/ 4 1/5=?/12 1/2=17 6/7 I cannot figure out how to get this 17 & 6/7 as an answer
asked by Rayne 
math
Given that: 4(2g + 104)  96 = 504 + 6(g  14), solve for g. i'm confused on how to set this problem up  if anyone could help that would be great. thank you.
asked by erika 
Physics
Two pingpong balls each have a mass of (1.4x10^0) g and carry a net charge of (3.99x10^0) μC. One ball is held fixed. At what height should the second ball be placed directly above the fixed ball if it is to remain there?
asked by John 
Algerbra
select the approximate values of x that are solutions to f(x) = 0, where f(x) = 8^2 + 2x + 2
asked by Alexis 
English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) *** Some may not have DO*** please
asked by Anonymous 
physics
A person takes a trip, driving with a constant speed 94 km/h except for a 50 min rest stop. If the person's average velocity is 74 km/h, how far is the trip? Answer in units of km.
asked by waverly 
Science
Why do we say that an explanation in science is tentative?
asked by Anonymous 
Chemistry
Suppose you have two 100{\rm mL} graduated cylinders. In each cylinder there is 58.5mL of water. You also have two cubes: One is lead, and the other is aluminum. Each cube measures 2.0cm on each side. After you carefully lower each cube into the water of
asked by Wendy 
Science of the Atmosphere
What is the temperature of air, given P= 90 kPA and the pressure is 1.0 kg(m^3)? Thanks!
asked by Rebekah 
Mathematics
Assume that S/A = 7.0, D/A = .40, N/E = .80 and A = D + E. Solve for N/S. I'm lost. Does anyone have any tips? Thank you.
asked by Nicholas 
Algebra
The length of a rectangle is 11 cm more than the width. The perimeter is 90 cm. Find the length and width of the rectangle.
asked by Jacob 
math 12
Here is question on an math assignment I was given, I have no clue what it is even asking. It's a Challenge Yourself question, I've typed it exactly how it is on my paper: A student is having difficult figuring out what is wrong with his proof: Let C=D
asked by M 
Physics
A small rock is thrown vertically upward with a speed of 14.0m/s from the edge of the roof of a 25.0m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. What is the speed of
asked by Deszlyn 
chemistry
A 6.0ft person weighs 177lb. express this person's height in meters and weight in kilograms.
asked by michael 
english
Identify the type of pronoun error in the sentence. If anyone accepts his challenge he will be sorry. reference case agreement
asked by NiEsha 
Physics
A car slows from 23 m/s to 3.4 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 3.4 m/s?
asked by Alexis 
Finance
How do I get the depreciation expense based on this information: sales = $51,700; costs = $39,100; addition to retained earnings = $2,925; dividends paid = $960; interest expense = $1,510; tax rate = 30 percent
asked by Karly 
C programming
I am suppose to create a code that uses the pow function in math.h to calculate the hyperbolic cosine when the user inputs an angle x. the equation I have to use is cosh x= e^x + e^x /2 can someone check my code. I am not sure what i am doing wrong. do I
asked by jasmine 
Chemistry
NaHCO3 + HCl = NaCl + H2O + CO2 The there are .0489 moles of CO2, and HCL is 6M. find the amount of HCL in mL and the grams of NaHCO3
asked by Joe 
CHEMISTRY
Ch3CN(CH3)C2H5 is my kekule drawing ok? I drew it and uploaded a picture. oi61. tinypic . com/2vmztir.jpg
asked by JESS 
CHM
rank the following items in order of accuracy when they are used for their intended purpose: volumetric pipet, beaker,erlenmeyer flask,mohr pipet,graduated cylinder,volumetric flask,buret my answer MOHR PIPETTE 1 VOLUMETRIC PIPETTE 2 BURET 3 VOLUMETRIC
asked by nina 
physics
Over a time interval of 2.17 years, the velocity of a planet orbiting a distant star reverses direction, changing from +19.3 km/s to 22.9 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during
asked by shant 
Algebra
mark can paint the fence in 40 minutes and manny can paint the fence in 30 minutes together how long will it take to paint the fence
asked by JoAnne 
science
I measure my head fist 28m , 65cm now i'm stuck trying to figure out how to measure my head in mm and km. I need help please.
asked by brittney 
english
IS this a good thesis statement? On my wedding day I realized I had to make new changes in my life because I had to become a responsible adult, learn to be without my parents and become independent.
asked by Doris 
math 8
5. 8^3 * 8^7 (simplify) 11. ((5/8))^3 (simplify) 12. ((2/9)^3)^5 16. 3^2 * 3^x = 3^12
asked by anonymous 
english III
Can someone please help me find some examples of selection of details in chapter 8 of the narrative of the life of Frederick Douglass
asked by Siro 
math
Jerry King is a server in a restaurant that pays a salary of $22 per day. He also averages tips of 18% of his total gross food orders. Last week he worked 6 days and had total food orders of $2,766.50. What was his total gross pay for the week?
asked by Anonymous 
science/math (mean)
Find the mean Sample Value 1 41.93 2 12.55 3 48.07 4 90.81 5 18.45 6 55.81 I came up with 44.60 the online program "said close but check to see if yo made a round error" and at least three decimal places
asked by Tom 
physics
A ball is thrown straight up with an initial speed of 60 m/s. How high does it go? Assume the accelera tion of gravity is 10 m/s22
asked by cheyenne 
Math
Ok so... 4 (2 +8) = (4 • 2) + (4 •N) What would N be?
asked by Ally 
world history
what does geographic features mean?
asked by Eden S. 
world history
what does industry mean?
asked by Eden S. 
economics 6
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western
asked by Alejandra 
Math
"How big is 1 million? How many ones are there in 1,000,000? Answer1: 1 Answer2: 1000,1000 How many hundreds are there in 1 million ? Answer1: 10,000 Answer2: 100 How many hundred thousands are in 1 million ? Answer1: 10 Answer2: 100,000 How many ten
asked by Nnn 
Precalc
A taxi company charges $4.00 for the first mile (or part of a mile) and 40 cents for each succeeding tenth of a mile (or part). Express the cost C (in dollars) of a ride as a piecewisedefined function of the distance x traveled (in miles) for 0 < x ≤ 2.
asked by Alexa 
Physical Science
An 84.9 kg man is standing on a frictionless ice surface when he throws a 2.00kg book at 11.1m/s. Do the man move in the same direction as the book or opposite of the book.
asked by Barbara 
math
Find an equation of the line that satisfies the given conditions. Through (−7, −12); perpendicular to the line passing through (−4, 0) and (0, −2)
asked by alex 
Math  Urgent
Determine how each multiplication or division pattern is formed. Then write the next two numbers a) 81, 27, 9 ... b) 5, 20, 80...
asked by Sally 
Health
In 2004, which ethnic or racial group was at a lower risk of suicide for people ages 65 or older? A. Asian and Pacific Islanders B. NonHispanic Whites C. NonHispanic Blacks D. Hispanics
asked by Anilysa 
biology
Q: Analyze an experiment in which one group of plants receive extra fertilizer and another group receives extra water. Is the experiment controlled or uncontrolled? Support your answer. My answer: The experiment is uncontrolled because there is no
asked by losa 
Health
Studies show that many older adults who die by suicide visited a physician within ________ before death. A. 3 months B. 6 months C. One year D. One month
asked by Anilysa 
Quick question
Do y'all do asl on here? Cause I need help putting English sentence into asl sentences.
asked by Anonymous 
physics
Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +4100 m/s, while rocket B has an initial velocity of +9400 m/s. After a time t both rockets are again side by
asked by S 
Finance
I really really need some help on this one!!! All I need is for someone to point me in the right direction. I have filled in the blanks of the income statement and figured out what the net income is. I am very stuck. How do I get the depreciation expense
asked by Karly 
statistics
A statistical analysis firm is hired to analyze the failure rate of a manufactured product. Which margin of error below would best indicate that the data used by the firm is a valid representation of the population? I don't understand the question they're
asked by olivia