Questions Asked on
November 23, 2013

Physics
A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0∘ ?
asked by Amy 
Math
The bases of trapezoid ABCD are AB and CD. Let P be the intersection of diagonals AC and BD. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.
asked by ASDF 
science
A geneticist is studying a pedigree that shows the family history of a recessive genetic disease. Which of the following pedigrees shows an impossible relationship? (
asked by emma 
Math
Let ABCD be a parallelogram. Let M be the midpoint of AB and N be the midpoint of AD. Diagonal BD intersects CM and CN at P and Q, respectively. Find PQ/BD.
asked by ASDF 
chemistry
20.0 g of ammonium nitrate (NH4NO3) is dissolved in 125 g of water in a coffeecup calorimeter, the temperature falls from 296.5 K to 286.4 K. Find the value of q for the calorimeter.
asked by Sona 
math
the area of a triangle is equal to 48 cm squared and two of its sides measure 12 cm and 9 cm, respectively. find the possible measures of the included angles of the given sides.
asked by hazel 
Math help plz check my answers!
1. Write the ratio in the simplest form. 50:10 25:5 10:2 5:1 1:5 2. Solve the following proportion. r/5= 9/21 r = 9 r = 2.14 r = 11.66 r = 37.8 3. A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to calculate how much flour is
asked by sally 
Science
How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could
asked by Anonymous 
math
Electron Tube Electronics made 50,000 TVs last month. If 3.5% of them were high definition, how many high definition TVs were produced?
asked by love 
Science
Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato blight that had wiped
asked by Anonymous 
Statistics
Exercise 8.92 Tony's Pizza guarantees all pizza deliveries within 30 minutes of the placement of orders. An agency wants to estimate the proportion of all pizzas delivered within 30 minutes by Tony's. What is the most conservative estimate of the sample
asked by  
Calculus
An observer stands at a point P, one unit away from a track. Two runners start at the point S in the figure and run along the track. One runner runs 2 times as fast as the other. Find the maximum value of the observer's angle of sight è between the
asked by John 
Algebra
Make a conjecture about the solution of a system of equations if the result of subtracting one equation from the other is 0 = 0 A. There are no solutions b. there are infinite number of solutions c. Cannot determine any solution d. the solutions are
asked by G65 
Grade 8 Math
A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m2. Draw two possible gardens. Determine the dimensions of each part of the garden, and justify your choice of these dimensions.
asked by Robel Taame 
College alerbra
Scott invested a total of $9500 at two separate banks. One bank pays simple interest of 11% per year while the other pays simple interest at a rate of 9% per year. If Scott earned $973.00 in interest during a single year, how much did he deposit in each
asked by Matt 
Physics
Problem 2 A 4 kg object is attached to a vertical rod by two strings, as in the Figure. The object rotates in a horizontal circle at constant speed 6 m/s. Find the tension in (a) the upper string and (b) the horizontal string.
asked by Mariam 
Calc
At noon, ship A is 100km west of ship B. Ship A is sailing south at 30km/h and ship B is sailing north at 15km/h. How fast is the distance between the ships changing at 4:00pm?
asked by Anon 
Physics
A 61kg snow skier is being pulled up a 14 ° slope by a steel (Young's modulus 2.0 x 1011 N/m2) cable. The cable has a crosssection area of 7.0 x 105 m2. The cable applies a force to the skier, and, in doing so, the cable stretches by 2.1 x 104 m. A
asked by Samantha 
Physics
Problem 3 A 40 kg child swings in a swing supported by two ropes, each 3 m long. (a) If the tension in each rope at the lowest point is 350 N, a. find the child's speed at the lowest point. b. the force exerted by the seat on the child at the lowest
asked by Mariam 
Math
A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus, the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 30 ft, find the dimensions of the window so that the greatest possible
asked by Lenny 
Physics
A 68kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. The unstretched length of the rope is 15 m and its crosssection area is 1.8 x 105 m2. As the skier moves, a resistive force (due to the
asked by Samantha 
Challenge
Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas
asked by Serenity1 
math problem grade 8!!
A soccer goalie has saved 14 shots and let in 1 goal. Explain Please!!!
asked by smile0003 
Solar Energy
With respect to a PV module's IV and PV curves, and the module's operating point, consider the following statements: a) When the operating point of the PV module is on the MPP (maximum power point), \(P_{mpp} \lt V_{oc} \times I_{sc} \) b) For a given
asked by John 
TRIPLE JUNCTION SOLAR CELL  I
The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition. EQE table is: A: EQE = 0.7 wavelength= 300 to 650 nm B: EQE = 0.9 Wavelength= 650 to 850 nm C: EQE = 0.8 Wavelength= 850
asked by UNO 
Finance
Calculate the project’s initial Time 0 cash flow, taking into account all side effects.? This will be a fiveyear project. The company bought some land three years ago for $4.2 million in anticipation of using it as a toxic dump site for waste chemicals,
asked by Cheryl 
math
In right ∆ABC, C is a right angle and sin A = . What is mB?
asked by tiara 
english  myths
The traits of a hero are determined by A. cultural values. B. their experiences.
asked by orpheus 
finance
Find the amount of periodic payment necessary for the deposit to a sinking fund: A=50,000 n=semiannually , r=13%, t=15 yrs.
asked by lisa 
electricity
A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two
asked by Antony need some help here 
Statistics
Tony's Pizza guarantees all pizza deliveries within 30 minutes of the placement of orders. An agency wants to estimate the proportion of all pizzas delivered within 30 minutes by Tony's. What is the most conservative estimate of the sample size that would
asked by  
Finance
Calculate the project’s initial Time 0 cash flow, taking into account all side effects.? This will be a fiveyear project. The company bought some land three years ago for $4.2 million in anticipation of using it as a toxic dump site for waste chemicals,
asked by Serenity1 
reading what does this mean?
Those members will create a "page" in a characterization book entitled "Two Kinds." Each page will present a character, character terms specific to this character, a graphic image and text suppot that "proves" each character term that has been assigned.
asked by anonymous 
Physics
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 98N picture is then hung from the center of the wire, as the drawing illustrates, so
asked by Samantha 
Chemistry
Balancing Complete Redox Reactions I need help on the half reduction part for both reduction and oxidation of Cl2(g) > cl^1 (aq) + OCl^1 (aq). I got both of the half reactions started. Cl2 > Cl^ (Reduction) .... Cl^1 (aq) + OCl^1 (aq) (Oxidation).
asked by Chris 
english
An important purpose of myths is A. to create interesting entertainment and exciting story plots. B. to illustrate the connections between modern times and the past. C. to build an understanding of the past and teach lessons for the future. D. to establish
asked by orpheus 
Finance Challenge
The new RDS project is somewhat riskier than a typical project for DEI, primarily because the plant is being located overseas. Management has told you to use an adjustment factor of 3 percent to account for this increased riskiness. Calculate the
asked by Serenity1 
physicscan anyone solve this please
3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +xdirection (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a
asked by Carl 
physical
Specific Heat. Copper has a specific heat of 0.092 cal/g/deg C. A 75 gram copper mass has been heated to a temperature of 100 degrees C. The copper is placed in thermal contact with 50 grams of water at 25 degrees C. What will be the final equilibrium
asked by Anonymous 
finance charges
Use a calculator to evaluate an ordinary annuity formula for m, r, and t (respectively). Assume monthly payments. $150; 8%; 35 yr
asked by Anonymous 
Math
0.08x^3 + 0.6x+2.8 absolutevalue function Rational function Another polynomial function Quadratic function
asked by Anonymous 
science
theory of plate tectonics/what are tectonics plates?
asked by mikel 
Chemistry
Balancing Complete Redox Reactions I need help on the half reduction part for both reduction and oxidation of Cl2(g) > cl^1 (aq) + OCl^1 (aq). I got both of the half reactions started. Cl2 > Cl^ (Reduction) .... Cl^1 (aq) + OCl^1 (aq) (Oxidation)
asked by Chris 
finance
Suppose a zerocoupon bond is selling for $614.00 today. It promises to pay $1,000 in exactly 10 years with annual compounding. What is the firm’s aftertax cost of debt if this is its sole debt outstanding (assuming the firm is in the 20% tax bracket)?
asked by Susan 
Algerbra
if possible, solve the nonlinear system of equations. x^2+y^2=58 yx=4
asked by KT 
math
Saving for retirement by contributing the same amount each month from your 23rd birthday until your 65th birthday, in an account that pays a steady 4% annual interest compounded monthly. How much will be in your fund at age 65 if you save $100 a month?
asked by Tracy 
English
Is it passive or active voice? Many clothes (we're given) to the homeless shelter. Passive By the end of today, the students (will have mastered) the grammar. Active My aunt Margot ( has been traveling) with her daughter. Active The cookies (have been
asked by Ray 
english
Excerpted from A Tale of Two Cities by Charles !@#$%^&ens [1] Saint Antoine* had been, that morning, a vast dusky mass of scarecrows heaving to and fro, with frequent gleams of light above the billowy heads, where steel blades and bayonets shone in the
asked by orpheus 
financial analysis
Total Current assets Total Current Liabilities Net Working Capital Current Ratio a. Cash is acquired through issuance of additional common stock. _________ _________ _________ _________ b. Merchandise is sold for cash. (Assume a profit.) ___+______
asked by Anonymous 
math
Solve the following proportion:t/8 = 3/4
asked by Matt 
Math
The radius of a circle and it's circumference Direct or inverse
asked by Anonymous 
math
Miriam is four years older than Ricardo. 10 years ago she was 3 times as old as Ricardo was then. A) How old are they now B) determine whether your answer is correct by checking that it satisfies the conditions of the problems
asked by Kay 
waste water
The crosssectional surface area of the screen channel during maximum flow = 0.75 m2. The maximum free surface area in the clean screen = 0.5 m2. Use hL=1C⋅(V2−v2)(2⋅g) for calculating the head loss, the friction coefficient (C) for a clean screen is
asked by bilal 
physics
how much work (in ft lb) is done by a large bucket that can lift 4.5 ton of dirt 14 ft into the air and dump it into a 5.0 yd cubed dump truck?
asked by carol 
algebra 1
Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40
asked by malik 
CHEMISTRY BALANCING CHEMICAL EQUATION
H2SO4 + NaOC = Na2SO4 + H2O
asked by HYO JIN 
algebra 1
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
asked by mark 
myths
In the archetypal heroic quest, the hero A. goes on a quest to demonstrate his strengths and perfection. B. overcomes all challenges without damage to his core strengths. C. exhibits both strengths and flaws as he faces challenges. D. builds a following as
asked by orpheus 
math
Find the area of the shaded region. View the graph and image at: postimg.o rg/image/dg4kt89v1/ Please help me explain this one. I know the ans to this one but can not work out.
asked by math 
Haikus
Are these ok? The wild animals Are very protective of Their natural home The sunlight is nice For us to see in daylight And helps us keep warm Do any of these contain symbolism? If so, which ones and where?
asked by Izzy 
8th grade science :(
How does the sun's gravity influence tides?
asked by helena 
Accounting
Hawkeye Electric Company engaged in the following transactions during July. Journalize the preceding transactions on the books of Hawkeye Electric Company using the perpetual system of inventory. July 2 – Purchased inventory for cash, $800 July 5 –
asked by Lissa 
math grade 8 please help!!!
1/5 of 10% of 200g how would i solve this plz explain!! (one over five of ten percent of twohundred grams)
asked by anonymous 
cal
The function gives the distances (in feet) traveled in time t (in seconds) by a particle. Find the velocity and acceleration at the given time. s= √(t^25), t=3
asked by tony 
English
1. She cut it open. (Is 'open' an objective complement? What is the part of speech of 'open'? Is 'open' an adjective or a 'verb'?) 2. Chocolate is made from cocoa beans. 3. Chocolate is made from cacao beans. (Which one is correct?) 4. He is picking up a
asked by rfvv 
math
A 1963 Chevy Bel Air, a classic car today, cost $2400 new in mid1963. How much would that be in 2012 dollars?
asked by Tracy 
statistics
Failing to reject the null hypothesis when it is false is a Type II Error. T or F, and why or why not?
asked by Shar 
Accounting
I am doing a report on finding the major challenges in the future of my university with regards to their revenue and expenses. I have to discuss the main financial obstacles faced by the university and explain why each presents problems with future
asked by Jess 
math
The graph below shows the rate of natural gas usage (in therms per day) in one household for a 30  day period. Estimate the total number of therms used during this period. Use left endpoints and rectangles with widths of 3 days. View graph at: postimg.o
asked by math 
MathAlgebra 1
Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in pointslope form for
asked by Gabby 
n nb
The annual interest rate for a customer’s loan of $425 is 15.75%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?
asked by Anonymous 
Matt
Multiply and then simplify the following expression: (2t + 1)(t  3)
asked by Matt 
Math
(2a4)2 = ?
asked by Matt 
algebra
How do i write the qoutient of twenty four and the number p as a variable expression using p as the variable
asked by jen 
rhetoric (essay writing)
I just need a few ideas of what are the causes of racism in EGYPT and things that I can talk about relating to social class for my research paper please. Im focusing on "black" racism. Thanks :)
asked by nuts 
Algebra
After one round in a card game, your score was 42 points. After the second round, your score was 2 points. How many points did you lose in the second game?
asked by Anonymous 
Business Law
I have a few questions that I'm not 100% about. 1. A warranty that provides restricted protection is called a ________. A. minimal warranty B. special warranty C. limited warranty D. warranty for a particular purpose I said A. 2. If the party to whom goods
asked by Eri Uchi 
statistics
IQ scores were obtained from randomly selected couples.For 20 such pairs of people, the linear correlation coefficient is 0.881 and the equation of the regression line is y= 6.93+ 10.8x, where x represents the IQ score of the husband. Also, the 20x values
asked by angela 
Math
Mel paid $569.27,including 6% tax! for LCD computer monitor. How much did the computer monitor itself cost?
asked by Anonymous 
algebra
Eric walks 24 feet in seconds towards the front of a train that is moving at 80 feet per second. What is Eric's rate of travel with respect to the land?
asked by Anonymous 
Math grade 9 and up
let s and w represent positive integers where x,y satisfy x/s+y/w=1 and s/x+w/y=4, find x+y in terms of s and w It's really hard even for the teachers it took them a while. So I I was wondering how to solve it
asked by Xein 
Math
WHAT WOULD 18/100 BE IN RATIO FORM, I THINKING 18:100 BUT NOT SURE?
asked by Libby 
Math
Eric walks 24 feet in 3 seconds towards the front of a train that is moving at 80 feet per second. What is Eric's rate of travel with respect to the land?
asked by Anonymous 
Chemistry
Balancing Complete Redxo Reactions. I am not sure how I am suppose to start anything. Even the Half Reactions. BrO3^1 + Br^1 + H^1+ > Br2 + H20. I need to know all the steps on how to do half reactions & I think I should be good.
asked by Cloud 
Algebra
The product of 2 and y plus the result of multiplying z by 2 plus x equals 3.
asked by Joy 
algebra 2
The annual expenses of a manufacturing company must satisfy the inequality that follows, where x is in millions of dollars. 2(x5)>6(x3) A. Solve the inequality for x. Interpret the result.
asked by ricky help please 
Geometry
What is y if 6y+1=21y+13
asked by Destiny 
Math
12g6=7g How do I solve this one because I have to find g by itself
asked by Jerald 
Statistics
125/500 women soda drinkers indicate they drink diet soda. At the .01 level, does this evidence indicate that more than 20% of the women soda drinkers drink diet soda? Determine and explain the Pvalue please. I have the numbers...just cannot explain.
asked by Sandra 
Civics
Which rights have allowed for citizens to check the powers of government?
asked by Kali 
rigor
simplify the area of the nerds box 3x/10 and the answer is 3 1/2
asked by rian 
statistics
If the average commute time is 10.9 miles, but the average is actually the mean of a sample of 300 commuters and the sample standard deviation is 6.2 miles Estimate the true mean commute distance using 99% confidence level.
asked by Mel 
Calculus
Find the point on the line 6 x + 5 y  1 =0 which is closest to the point ( 4, 1 )
asked by ryan 
Civics
Ms.Sue would you mind checking my answer? Question~How does the constitution protect someone's freedom of speech while also limiting their freedom of speech? Answer~ we are allowed to state our opinion as long as itdoes not taken someone's rights away,
asked by Kali 
Principles of Accounting I  29
The beginning capital of the business totals $4,000. If the net income for the period totals $14,000 and the withdrawals by the owner total $3,000, what will be the new capital balance reported?
asked by mary 
Math
True or false if x > 9 then 2 x > 18
asked by Kgk 
Math
Combine like terms: 11r + 3  12 + 2r
asked by Matt 
math
Simplify the following algebraic expression: b[b(b  2)  4] + 1
asked by Matt 
math
I do not understand how the odds of drawing a queen from a deck of cards is 3to1
asked by angela 
algebra 1
and I need help on this one problem This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). would a graph model this problem situation?
asked by nicki 
English
The duckling started swimming out of instinct when she followed the rest of the flock into the lake for the first time. Do any commas need to be added?
asked by Tessia 
law
How does prosecutorial discretion affect the overstating of laws on average sentencing?
asked by joanna 
Yanii
What property of water forms a meniscus?
asked by Biology 
Yanii
What unique property of water allows organisms living in lakes to survive in below zero winter conditions ?
asked by Biology, One more question 
Algebra
The result of multiplying 2 by x plus y times 3 plus 5 times z is equal to 10.
asked by Joy 
Algebra
The product of x and 3 plus the product of 7 and y plus z times 4 is equal to 3.
asked by Joy 
Haikus
Would this be a good haiku? Wisconsin snow falls Gently and softly like rain The children go play
asked by Izzy 
Math
Flora traveled 795miles from Dalls to Atlanta . then she traveled 841miles from Atlanta to new york . About how many miles did Flora travel in all? Answer,, 795+841=1636 The answer ,,,add or multipiy. 2/ A square box holds 49 teniss balls. What
asked by Joji 
law
How do “Other” crimes cause any estimated difference in classification of threestrikes arrests?
asked by joanna 
Algebra (Verbal Expressions More Difficult)
The sum of 6.5 times u, 5 and 2. plus the product of 3.5 and x is equal to the result of adding x, 4.5 times y and 10. The sum of x and y plus the result of adding z and 8.5 equals 2 times x plus 3 times y plus the result of multiplying 5 by u plus 7..
asked by Joy 
Math
102=8a+5a3a I add 8a and 5a first to get 13 and then add 3?
asked by Jerald 
Magnets
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +xdirection (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region
asked by Ed some one please help