Questions Asked on
May 19, 2013

math
400 is a threedigit square number that makes a onedigit square number when its digits are reversed.How many threedigit squares are there which make three digit squares when their digits are reversed
asked by lian 
math
the height of a soccer goal is 0.5 feet more than one third of its width. if the area of this goal is 117ft^2, find the width of the goal
asked by john 
math
a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?
asked by john 
math
a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?
asked by john 
Algebra
I need help with two math problems. 1. A triangle has vertices (1, 4), (1, 1), and (3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What are the vertices of
asked by Kelly 
Mathematics
The temperature, T (in ºF), of a car's radiator during the first 4 minutes (t 4) is given by T = 6.2t2 +12t +32. How long does it take the temperature to reach 120 ºF after the car has begun operating?
asked by Anonymous 
Physics
A system consisting of two fixed and two movable pulleys has a mechanical advantage of 4.00. If a force of 124 N is exerted, which weight can be raised?
asked by Paul 
PSY210 Psychological Statistics
Simply reporting measures of central tendency or measures of variability will not tell the whole story. Using the following information, what else does a psychologist need to know or think about when interpreting this information? A school psychologist
asked by Scrowe 
Algebra
I'm stuck!! Can someone please help me with this problem?? A triangle has vertices (1, 4), (1, 1), and (3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What
asked by Melania 
math
The effective rate of interest corresponding to a nominal rate 3%p.a payable half yearly is..?
asked by nitu 
chemistry
Describe the preparation of 2litre of 0.05molar silver from the primary standard grade solid.
asked by Ade otunba naim 
chemistry
What is the primary standard for the preparation of silver.
asked by Ade otunba naim 
chemistry
What is the primary standard for the preparation of silver.
asked by Ade otunba naim 
chemistry
What is the primary standard for the preparation of silver.
asked by Ade otunba naim 
chemistry
What is the primary standard for the preparation of silver.
asked by Ade otunba naim 
math
in a grocery store, butter is sold in “sticks” that are shaped like little bricks. The weights of these sticks are like draws at random with replacement from a population with average 4 ounces and SD 0.2 ounces. The grocery store receives the butter in
asked by tms 
math
In a population of 10,000 adults, 20% are smokers. A simple random sample of 600 of the adults is drawn. a)The SE of the number of smokers in the sample is closest to 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 b)The chance that there are fewer than 115
asked by tms 
math
In surveys about sensitive topics, respondents are sometimes given ways to “hide” their answers from the surveyor. In a survey of taxpayers, one of the questions is, “Did you cheat on your taxes?” To answer, the respondent is asked to toss a coin.
asked by tms 
math
If sin57=m Express the following 1. sin 237 2. Cos 33 3. Cos 3 4. Cos 66
asked by Andy 
Chem
if 15.0g Si and 30.0g Chlorine gas are reacted together, what vol. of SiCl4 will be produced assuming a 75% yield? Density of SiCl4 =1.483g/ml.
asked by Shun 
math
If y = 18x+5 is the regression line of x on y then the value of bxy is what ?
asked by kumar 
trigonometry
If sin 57=m then express the following questions 1. Sin 237 2. cos 33 3. cos 3 4. cos 66
asked by jaden 
statistics
For certain x and y series which are correlated, the two lines of regression are 5x6y+9=0 , 15x8y+130=0. The correlation coefficient is :
asked by anand nanda 
L.O
5 WAYS IN WHICH HUMAN OR INVIROMENTAL PROBLEMS IMPACTS ON THE COMMUNITY
asked by syabonga 
Math
Sarah was given a sum of money. She spent the same amount of money each day. She spent 2/7 of her money in 6 days. After another 5 days, she had $20 left. How much money did she have at first.
asked by Sarah 
math
Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70
asked by xaad 
math
Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70
asked by xaad 
Math
prove identity Sin2x  sinx/cosx + cos2x= sinx/cosx + 1
asked by Matthew 
math
General solution Cos^2 +3sin= 3
asked by Wayne 
statistics
The body temp of normal healthy persons are normally distributed with a mean of 98.2 degrees F and a standard deviation od .62 degree F. If we define a fever to be a body temp above 100 degrees F, what percentage of normal and healthy person would be
asked by Anonymous 
life orientation
which human problem impacts on the community?
asked by thangithini 
math master need your help
what is next number in the sequence 12,6,4,3,2,12/5,... and 1,4,15,40,85,156,259,400,585,... also show the sequence scheme,kindly and ur last answer was wrong as 43 it was 49 for 43^2082
asked by jamesbond 
maths
Rhombus ABCD is similar to rhombus BFDE.The area of rhombus ABCD is 24 and angle BAD=60 degrees .What is the area of rhombus BFDE?
asked by ramesh reddy 
math
At an airport, a flight controller was in a tower 40m above the ground. When she first observed a plane it was at an angle of elevation of 12 (degrees) from her line of sight and flying at a constant altitude (height) The plane had a constant speed of
asked by alice 
math
If 1/cos  cos=a^3 and 1/sin  sin=b^3 Show that tan=a/b
asked by David 
math
tan(180x)sin(360x)cos90x)cos(x)/sin(x180)cos(450+x)tan(180x)
asked by shane 
math
PQ is a vertical tower 95m high, the points R and S are on the same horizontal plane as Q, the angle of elevation of P from R is 35 if QS =155m and Q from RQS=48 1.Calculate the distance of QR 2.Calculate the distance of RS 3.Calculate the are of QRS
asked by victor 
soc 120
Different ethical theories (Points : 1) can never offer useful information. must always contradict each other. can agree that certain acts are morally justified. always agree that certain acts are morally justified.
asked by tia 
math grade 8
Hi! I have to sketch 3D shape of the house using triangular prism, rectangular prisms, cube, and cylinder.I have to include measurement calculations with formulas. I already did it all, but someone told me that the SA (surface area) of my house calculated
asked by mark 
ECONOMICS
WHAT ARE WELFARE PAYEMENTS OR CONSUMERS SUBSIDIES
asked by SIMON 
science
A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s.
asked by JUSTIN 
To GANDU MAN
Your geometry problem of yesterday has been answered. http://www.jiskha.com/display.cgi?id=1368886945
asked by MathMate 
CIT
find the dimension of the largest triangle that can be inscribe in the ellipse 9x^2+16y^2=144. The sides of the rectangle are parallel to axes of the ellipse
asked by lian 
Algebra
How do i factor this problem completely? 216x^3  y^3
asked by Mandy 
maths
how to make a project on mathematics application?
asked by Gagandeep 
maths
how to make a project on mathematics application?
asked by Gagandeep 
math
simplify with steps 5(√32)^3
asked by kiko 
physics
A gas at 273 kelvin expands by 0.1 cubic metre if it is heated through 50 kelvin. Calculate the original volume at constant pressure
asked by alistair jacobs 
life orientation
Provide 5 or more ways in which you critically discuss how life style / behaviour disease impact on the teenager
asked by Anonymous 
math
find the value of x 2^5x/2x=5(√2)^20
asked by kiko 
life orientation
Conclusion in which you explain in 1 paragraph what you have learn in this assignment and how it has change the way in which you will view lifestyle disease or behaviour in the future
asked by Anonymous 
economics
Bob and his dad visited the hardware store on Saturday. They observed the following transactions: Mr. Harris bought 4 for 0.50, Mrs. Clarke bought 21 for $1.00, Mr. Montaro bought 1,134 for $2.00 and Ms. Park bought 450 for $1.50 What were they buying?
asked by Jean 
financial management
What is the value of a share of common stock that paid $2.00 last year, the growth rate is 8%, assume the risk free rate is 4%, the market return is 10% and the Beta is 1.5.
asked by Johnny 
civics
what are the main challenges to acheiving justice in American Society today and how can those challenges best be met?
asked by Anonymous 
human life
name two community organizations involved in redressing air pollution and how these organisations redress air pollution
asked by lungani 
first additional language
how did youth day came?
asked by Emily 
physics
A ball of mass 8kg falls from rest from a height of100m neglecting air resistance calculate.its total enegy after falling a distance of 400.
asked by Gbadebo oluwatosin 
English
Can somebody please help me write a summary news lead using the story below. The lead may be no longer than 20 words and must be written in the active voice. Gary hubard, superintendent of schools, announced a new program for your local school district. It
asked by Afranko 
Scientic Notation
A family refers to a group of two or more people related by birth, marriage, or adoption who reside together. In 2000, in Country A, the average family net worth was 430,000 and there were about 9.2 x 10 to the seventh power families. Calculate the total
asked by Anonymous 
economics
what is the south african government providing to whom?
asked by wendy 
maths
given f(x)=x^3x^28x+12,draw a graph of f,showing all intercept with axes and turning point
asked by KayCee 
Life oritation
In 10 _15 lines critically discuss 5 ways in which the human or environmetal problems impacts mn the community . Provide relevent sources to support your claims
asked by Anonymous 
Geometry
a teepee with a dirt floor in the shape of a right cone has a slant height of 26 feet and a radius of 12.5 approximately how much canvas would be needed to cover the tepee?
asked by dem 
chemistry
hydrogen gas can be produced by reacting aluminum with sulfuric acid .How many L hydrogen gas are produced by reacting 15.0 mol of sulfuric acid with 15.0 mol of aluminum at STP?
asked by may 
HISTORY
Why did European countries expand and take colonies overseas? Why didn't others powerful societies like the Ottomans, Ming Chinese take the same path?
asked by AhmadM 
English
Compare and contrast the role of nature and the natural world in two poems from this unit: Walt Whitman’s “Come Up from the Fields Father” and Sara Teasdale’s “There Will Come Soft Rains.” Be sure to use specific examples from both poems to
asked by Anoymous 
math
1.) Calculate the area of a circle with radius 8.5 inches. . 2.) Calculate the area of a circle with the diameter 15 feet. . 3.) Calculate the area of a circle with radius 9 feet
asked by justin 
math
If it is given tan(AB) tanAtanB/1+tanAtanB and tanP1/1+tanP=tan195 Find the value of P
asked by james 
Physics
A race car starts from rest in the pit area and accelerates at a uniform rate to a speed of 35 m/s in 11s, moving on a circular track of radius 500 m. Determine the tangential and centripetal components of the net force excreted on the car(by the ground)
asked by Martin 
math
2 51 45 58 41 44 37 38 40 44 45 40 59 45 44 34 44 43 48 32 38 1.Determine the mean of the data 2.Determine the standard deviation of the data
asked by jacob 
life orientation
impact of environtal problem in community.
asked by december 
Algebra
An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y= 4.9t^2+68.6t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long
asked by Sophia 
advanced algedra 2
Factor the following quatric equations: a) x^49x^2+18
asked by Tiara 
Algebra
The profit for a company that sells chairs is defined by P= 5x^2+200x+200. Where P is profit and x is the number of chairs produced. Find the number of chairs "x" that will produce the maximum profit "P".
asked by Sophia 
math
Find the mininum product of two numbers whose sum is 55
asked by lori 
math
If the width of a rectangle is 6 inches and its perimeters is 38 inches find the length of the rectangle?
asked by Anonymous 
math please hurry
A secret code must consist of three capital letters followed by a digit. Letters cannot be repeated. How many secret codes are possible? A. 140,400 B. 156,000 C. 175,760 D. 358,800
asked by sophie 
algebra II Part 2
The equation h=7 cos{pi/3 t} models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched an then released. (C).Find the times at which the weight is at a height of 1 cm,of 3 cm,and of 5 cm below
asked by Karen 
Algebra II Part 2
Use a graphing calculator to solve the equation 3 cos t=1 in the interval from 0 to 2p.Round to the nearest hundredth
asked by Karen 
Physics HELPPP PLEASEEE
A 0.60 kg sphere rotates around a vertical shaft supported by two strings, as shown. If the tension in the upper string is 18 N. Calculate the tension in the lower string? the rotation rate (in rev/min) of the system?
asked by Joeline 
science
a particle takes 6.28seconds to complete one revolution.its angular speed is
asked by ayesha 
Social studies
How did monteqeieus system reflect John lockes ideas about government ?
asked by Jackie 
physics
Two uniform 81.6 g marbles 1.81 cm in diameter are stacked in a container that is 2.78 cm wide. 1) Find the force that the container exerts on the marble at the point of contact A, B and C. 2) What force does each marble exert on the other?
asked by Anonymous 
math
Prove that Sin x + tan x / 1+cosx =tan x
asked by lindsay 
French (SraJMcGin)
SraJmcGin, Could you please teach me how to type the accents in French on a computer? I'm not sure how to do it, and I don't want to print out my writing and write the accents with a marker or pen. I also fixed up my SacreCouer sentence; is this better?
asked by Deidre 
Mathematics
A bicycle tire turns at 133.0 rpm and has a radius of 40.0 cm. The speed (v = r) of the bicycle is about
asked by Paul 
advanced algedra 2
Factor the following quatric equations: a) x^49x^2+18
asked by Tiara 
Math
1. Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? 2. What is the net price of each Natureland Garden Center lawn mower?
asked by zeenat 
Math
1. Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? 2. Using your answer to the question above, what is the net dollar amount of that
asked by zeenat 
physics
If the electrical field due to a point charge is .000602N/C what is the magnitude of the field (N/C)3.51 times as far away?
asked by angela 
chemistry
Complete the mass balance expression for a saturated solution of Ag2CO3. Note at least one blank is a numeric coefficient. (Note: Ignore any subsequent reactions of Ag .)
asked by Lana 
social studies
1.name some produse that come from mass
asked by steven yu 
Geometry

physics
a pair of parallel plates is charge by a 30.3V battery, if the field between the plates is 1050N/C how far apart are the plates? answer in meters
asked by angela 
Math simplify
How Do I simplify this? a) 4√27a^3b
asked by Kat 
Chemistry
Find the polar coordinate of the following. (0,6) I know r = sq.root of 6 but tan theta = 6/0 doesn't exist so how will I find the degree? Thanks
asked by Shadow 
physics
Three wires are arranged in an equilateral triangle as shown in the figure below. The lower two wires are 4.00 apart. Assume all the wires are 1.35 long for this problem (extending into the screen).
asked by Anonymous 
Music
Name an interval between two white keys with a black key between them. Thanks
asked by mysterychicken 
Spanish
1) ¿ Hace un mes nadas en el mar? Hace dos meses. A. Cuánto tiempo hace B. Cuánto tiempo hace que C. Hace un mes D. A qué hora I said C 2) Hace tres horas ______ el piano. Me duelen mucho los dedos. A. que toco B. yo toco C. qué toco D. me toca I said
asked by Eri 
Chemistry
What are the Oxidation and Reducation reactions for these equations : BaCl2 + NaHCO3 > BaCO3 + NaCl + HCl (carbon is the reduction reaction, but I don't know what the oxidation reaction is) CaCO3 + HCl > CaCl2 + CO2 + H2O
asked by K 
Film
Which of the following is true of the screenwriter’s role in making movies? (Points : 1) A film begins with a writer’s story Film is generally considered a writer’s medium The writer is more important than the rest of the cast and crew Writing
asked by John 
7TH GRADE MATH
If the radius of a cylinder is 1.8 meters and its height is 7 meters, the volume of the cylinder is approximately 71.2 cubic meters...true or false I say false because shouldn't it be 71.2 cubic 3? Am I correct?
asked by Daniel 
Chemistry
A bracelet containing .200 mol of metal atoms is 75% gold. How many particles of gold atoms are in the bracelet?
asked by K 
math
Solve for x if sin2x=cos(x+30) for x [180;180]
asked by kim 
Chemistry
Suppose we are dealing with calcium chloride as opposed to the chemical in the video. If a solution contains 70 g of calcium chloride per 100 g of water at 25 degrees Celsius, is the solution unsaturated, saturated, or supersaturated?
asked by Moise 
plane geometry
if an obtuse triangle has an area of 28 sq.in. how do you find the base and height?
asked by harmin 
math
the sales tax is 6% and the item is $110.00. How much do I add for sales tax?
asked by arline 
Chemistry
How many oxygen atoms are in a) 3.21 x 10^22 molecules CH3OH b) .250 mol C6H12O6 Is it a) 3.21 x 10^22 atoms b) 9.03 x 10^23 atoms
asked by K 
Math
If the inputs are: 1, 2, 3, 4, 5 and my outputs are: 1, 5, 11, 19, 29, what is the rule?
asked by Blue Ting Ting 
Math log equations/exponential form
How do i express this to exponential form? a) log√2(w^2 x^3/y^5 z^7) b) log(x^2 y^3 √z1)
asked by gem 
Quadratic equations from standard to factored
Standard to factored form? a)y=x^2+7x+10 b)y=2x^2x3 c)y=x^29
asked by John 
geometry
A rhombus has a side that is 14cm long. One of its diagonals is 24cm long. What is the area?
asked by beck 
algebra
how to find out the individual price of a 5 tacos and 8 burritos if the total is $13. 76 and the price 6 tacos and 7 burritos if the total is $14. 26?
asked by cosi 
life orintation
factors that can make a person to be infected by hiv aids
asked by raymond 
geometry
Sam went to the park and saw a work crew putting in a square garden. She found a tape measure that was stretched between opposite corners with a measurement of 171.1 feet and decided to find the area. What is the area of the square in yards?
asked by beck 
geometry
what is the area of a regular hexagon with a side length of 6cm?
asked by beck 
mathematics
a small circular pool is enclosed in a square. find the area inside the square but outside the circle
asked by roxy 
health
What are the four structures of the lungs
asked by Yonette 
Algebra
A fireman leans a 40ft long ladder up against a building. The base of the ladder creates an angle of elevation of 32 degrees with the ground. How far is the base of the ladder from the base of the building? Round to the nearest whole foot, if necessary.
asked by Allan 
Civics
List the basic problem of scarcity and how it drives economic decisonmaking. Describe the role of factors of production. What is supply and demand? Apply the principles of supply and demand that predicts market prices and incentives for buyers and
asked by Abigail 
Chemistry
NOCL(g) decomposes to from nitrogen monoxide gas and chlorine gas. The equation is 2NOCL > 2NO +Cl2 At a certain temperature the equilibrium constant is 1.60 x 10^6. Calculate the equilibrium concentrations of all gases if 0.800 moles of NOCL are
asked by Maeve 
Math
Can anyone help me with this? The marginal cost for items in dollars is given by C''(x) = 2x + 30. If the cost of producing 2 items is $220, determine the cost function. What is the cost function? C(x)= _________________
asked by Jenny 
Math
Given f(x)= (x4)^21 What is the vertex of the graph of this function
asked by Praphul 
life orientation
how does HIV/AIDS affect teenagers?
asked by raymond makwela 
life orientation
how does hiv affect teenagers?
asked by Raymond Makwela 
math
Can someone please help? Solve the differential equation dy/dx = 6xy with the condition y(0) = 40 Find the solution to the equation y= ______
asked by mark 
science
would you expect more fertile land near the river in the mountains or on flat land
asked by Anonymous 
FrenchSraJMcGin
Thank you so much for your help with the accents! I had to switch keyboards for my laptop, so now it works. Could you please correct my sentence now? 1. La Basilique SacreCouer est une église catholique à Paris. Elle est très belle, et très grande. Au
asked by Deidre 
math
Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 4 = upper limit
asked by mark 
chemistry
How many liters of 0.50M NaOH must be added to 125 mL of 0.75M HCL to neutralize it
asked by KJ 
Math  Probability
Annabelle wants to move to a new city. If her chance of getting a job in Montreal is 10%, and her chance of getting a job in Vancouver is 35%: 3a) What is the probability that Annabelle will be offered both jobs? 3b) What is the probability that she will
asked by Jess 
Compensation and Benefits
Which one of the following characteristics is not critical in defining a team
asked by Anonymous 
math
Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =
asked by mark 
Chemistry
In the following unbalanced reaction, which atom is oxidized? HNO3 + HBr > NO + Br2 + H2O Is the answer bromine?
asked by Anonymous 
physics
A football is kicked with a velocity of 31 m/s at an angle of 41. What is the ball's acceleration in the vertical direction as it flies through the air?
asked by rayvia 
math:vertex,axis of symmetry,min/max,
How do i find the vertex,axis of symmetry,min/max value? a) x^29x+y+20 b) f(x)=5/4x^2+5/28x5/114 c) f(x)=5x^2+x+4
asked by John 
math
Sorry I posted this question earlier with a error. Can anyone help me solve this now? Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 5 = upper limit
asked by mark 
geometry
Jim is in the process of having a hole dug for a trapezoid shaped swimming pool. The pool will take up 121 square meters of the backyard. The distance from one base to the other is 11m. What is the median of the pool?
asked by beck 
geometry
The area of a square is 81 square centimeters. What is the length of the diagonals?
asked by beck 
PhySics
Using several bags filled with different amounts of the same item, take the mass of each and develop a procedure to determine the mass of a single item. (modelling milikan's oil drop experiment)
asked by HELP 
geometry
This question is about the shape of a kite. LINE AC bisects ANGLE BCD and ANGLE BAC ANGLE BCD = 50 degrees ANGLE BAD = 80 degrees LINE DC = 10mm LINE BE = 3mm What is the area of the kite?
asked by beck 
geometry
A rhombus has a diagonal with a length of 17 ft. and a side measurement of 9.5 ft. What is the area of the rhombus?
asked by beck 
Applied Physics
A 22g bullet is fired at a muzzel velocity of 509m/s from an 8.75 kg gun with a barrel 72cm long. the force on the bullet while it is in the barrel is about?
asked by Anonymous 
geometry
This shape is a trapezoid with a semicircle attached to the side. LINE AB = 8m LINE AD = 8m This is the part of the semicircle. LINE BC = 10m This is the diagonal side of the trapezoid. What is the area of the shape? What is the perimeter?
asked by beck 
chemistry
Write the half reaction and balanced equation for: Cl2(g) + H2(g) > HCl(aq) so I got: 2e + Cl2(g) > 2Cl H2(g) > 2H+ + 2e so Hydrogen is oxidized and Chlorine is reduced so for cell notation I put: Pt(s)H2(g)H+(aq)Cl2(g)Cl(aq)Pt(s) but the
asked by Hugh 
PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.
asked by Anonymous 
PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.
asked by Anonymous 
geometry
Shape is a trapezoid: LINE AC = 12dm LINE FD = 13dm LINE BE = 14dm LINE CG = 10dm This line makes the right angle of the triangle What is the area?
asked by beck 
PHI 103
I need some references of stereotype
asked by lisa 
PHYSICS
The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.
asked by Anonymous 
Physics
A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"
asked by AMK 
Mechanical Engineering
A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"
asked by AMK 
Mechanics
A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"
asked by AMK 
MATLAB
A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"
asked by AMK 
Physics
A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"
asked by AMK 
Mathematics
A toy projectile drives 12 meters, stops, and is stationary before launching 34 meters into the sky. At what angle, with respect to its starting point, is the toy located?
asked by Anonymous 
chemistry
A certain weak base has a Kb of 7.80 × 107. What concentration of this base will produce a pH of 10.17?
asked by Lana 
Algebra
An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = 49 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach?
asked by Amy 
algebra
after a mans weight increased 8% he weighed 167 pounds. how much did he weight to start with
asked by steve 
Algebra
an airplane travels at an average rate of 135 miles per hour (distance = rate x time) How many seconds does it take to travel 2.5 miles? 13.6 66.7 54.3 74.8
asked by Callie 
algebra
Car A leaves a certain point traveling at an average speed of 40 mph. 3 hours later, car B leaves the same point traveling at an average speed of 55 mph. How soon will B catch up to A? 4 6 8 10
asked by Callie 
Algebra
I am reposting to correct a mistake. I forgot to add a decimal point. An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = 4.9 t^2 + 68.6 t meters. Given that this object has an
asked by Amy 
science energy conversions
List the energy conversions in these situations. A drum set causes many dishes to rattle. Temperature differences cause wind.
asked by Anonymous 
physics
How long does it take light to travel through a 2.7 mmthick piece of window glass?
asked by joe 
math
if the preimage's perimeter was 104 units, what is the images's perimeter
asked by tom 
Math
Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =
asked by mark 
English
1. Energy can be made when we walk or run wearing these shoes. 2. Energy can be made when we walk or run while we wear these shoes. 3. Energy can be made when we walk or run while we are wearing these shoes. (Which is the same as #1? #2 or #3? Or Are the
asked by rfvv 
world geography
1. In a/an _______ economy, the production of a wide range of manufactured products becomes more economically important than primary production and a service sector begins to develop. A. diversified B. developing C. production D. international 2. In
asked by chris 
Math
Evaluate each expression for the given value of the variable 3y2+fory=5
asked by Diamond_98_ 
math
Solve for x sin2x=cos(x+30)
asked by larry 
science
where does the energy needed to heat up cold water come from?
asked by sam 
english
revise the following sentences to eliminate shifts in tense, mood, voice or person. 7. The flight attendant said, "please turn off all electronic devices," but that we could use them again after takeoff. 8. The real estate market was was softer than it has
asked by dani 
English
You can send the money over the Internet. You don't have to go to the bank. (In the second sentence, what is the use of 'the' before bank? Is 'the' in the generic use or does 'the bank' mean a specific bank in mind?)
asked by rfvv 
English
Taking turns with your partner, talk about the things which you don't need to do on Sunday. 1. What don't you have to do on Sundays. 2. Let me know the things you don't have to do ons Sunday. 3. Would you say an activity you don't have to do on Sunday? 4.
asked by rfvv 
physics
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons answer please
asked by Anonymous 
Chemistry
What happens if sodium acetate (CH3COONa) is added to the following reaction? CH3COOH H+ + CH3COO a) [H+] increases b) [H+] decreases c) a precipitate is formed d) [H+] does not change
asked by scilover 
Chemistry
A mixture of lead, magnesium, nitrate and chromate ions are present in a solution. What will the precipitate be? a) MgPb b) Pb(NO3)2 c) PbCrO4 d) MgCO3 I think its d) am i right?
asked by scilover 
English
Posted by rfvv on Sunday, May 19, 2013 at 10:17pm. 1. Energy can be made when we walk or run wearing these shoes. 2. Energy can be made when we walk or run while we wear these shoes. 3. Energy can be made when we walk or run while we are wearing these
asked by rfvv 
Mathematics
The length of a rectangular backyard is 7 feet less than four times its width. If the area of this garden is 15 ft2, find the length of the garden?
asked by Amy 
chemistry
What is the hydrogen ion concentration, in mol dm−3, when 2.00 g of sulfuric acid is dissolved in water to give 0.400 dm3 of solution? could you explain in a simple and clear way please because im not very good at chemistry. thanks in advance
asked by becky