Questions Asked on
April 19, 2014

Physics
A mass accelerates uniformly when the resultant force acting on it is......?
asked by Blessing 
College Algebra
The number of crimes that occurred in a certain city per 1000 people had decreased from 45.6 in 1920 to 45.1 in 1970. Find the average rate of change in the number of crimes per 1000 people that occurred from 1920 to 1970.
asked by Neonatologist to Be! 
Chemistry need help
using standard potentials given in the appendices calculate the standard cell potentials and the equilibrium constants for the following reactions. Zn(s)+( Fe^2+(aq)) > (Zn^2+(aq))+ Fe(s) If anyone can show work, then I can do the rest of my homework by
asked by Kader 
Calculus Please Need Urgent2 :/
Consider the function f(x) whose second derivative is f''(x)=8x+4sin(x). If f(0)=3 and f'(0)=2, what is f(x)? f(x)=??
asked by Jay 
CHEMISTRY HELP !!!!
As a standard voltaic cell runs, it "discharges" and the cell potential decreases with time. Explain.
asked by Tim 
English
1.) Anyone can publish information on the Internet without factchecking it. A.) True************************ B.) False 2.) Public records are most likely to contain valid information than secondhand reports. A.) True******************************** B.)
asked by Cassie 
physics
a mass of 10 kg is suspended from a spring balance .it is pulled aside by a string so that it an angle 60 with the vertical.the new reading of the balance is ??
asked by joshma 
Physics
A physics student who is late for school is trying to catch her bus. The student is 10 m behind the bus as the bus starts from rest and begins to accelerate at 0.5 m/s2 away from her. If the student continues running at a steady 3 m/s, will she catch her
asked by Corey Brown 
CHEMISTRY HELP !!!!
a.) which of the following reactions should have the larger emf under standard conditions & why? CuSO4 (aq) + Pb (s) goes to PbSO4 (s) + Cu (s); Cu(NO3)2 (aq) + Pb(s) goes to Pb(NO3)2(aq) + Cu(s) b.) Calculate delta G for the reaction.
asked by Ali 
Physics
The anode (positive terminal) of an Xray tube is at a potential of +125000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? (b) If
asked by Elise 
physics
Please help me !!! for solution of this question Water enters a horizontal pipe with a rectangular cross section at a speed of 1.00 m/s. The width of the pipe remains constant but the height decreases. 27.3 m from the entrance, the height is half of what
asked by suzan 
math
In triangle ABC, angle B = 3, angle A and angle C = 8 angle A. How many degrees are there in angle B ? a. 15 degree b. 30 degree c. 45 degree d. 60 degree e. 120 degree please answer and explain
asked by thomas 
calculus help
What constant acceleration is required to increase the speed of a car from 22 mi/h to 50 mi/h in 3 s? (Round your answer to two decimal places.)
asked by Kimberly :( 
Math
Write each logarithmic expression as a single logarithm: Log 2 + 3 log 1
asked by Dominique 
chemistry first yera
A 0.4 g sample of monobasic acid requires 16cm3 of 0.1 mol per dm3 of NaOH for complete neutralization . what is the relative mass of the acid?? Plz ans me urgent
asked by gulzara 
world history
How has the global economy changed after the Cold War?
asked by Lena 
math
If r = square root 3V/pi*h , by what number must we multiply V in order to multiply r by 9 ? a. 3 b. 9/2 c. 9 d. 18 e. 81 please answer and explain
asked by thomas 
Calculus Help
A highspeed bullet train accelerates and decelerates at the rate of 4 ft/s2. Its maximum cruising speed is 90 mi/h. (Round your answers to three decimal places.) (a) What is the maximum distance the train can travel if it accelerates from rest until it
asked by Ali 
Physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.0 m long, 2.2 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from
asked by Linda 
statistics
The average age for licensed drivers in a county is µ= 42.6, σ= 12 and the distribution is approximately normal. A county police officer was interested in whether the average age of those receiving parking tickets in the county differed from that of the
asked by Mark 
Dynamics
What is the minimum spring compression delta necessary to cause m2 to leave the floor after m1 suddenly released with zero velocity? Measure delta from the unstretched length of the spring and assume that all the motion is in vertical direction
asked by lexi 
Finance
Capital Budgeting Problems I. Indigo Industrial, Inc. is trying to determine which, if any, of five different projects it should undertake. Indigo Industrial has a 8.25% required rate of return on projects that it undertakes. The projected cash flows for
asked by Jeremy 
Physics
While driving her new fuel efficient minicar, Zelda changes her velocity from 22 km/h [forward] to 85 km/h [forward] while driving 2.0 × 102 m. What is her average acceleration ?
asked by Corey Brown 
Chemistry
What is the activity of a 18.9 μCi sample of carbon14 in becquerels?
asked by ACDub 
algebra
Rj and Joshua are running in the fun run. Rj runs at 7kph and Joshua at 5kph. if they start at the same time, how long will it be before Rj is 1/4 km ahead of Joshua?
asked by ariel nuevas 
physics
Water enters a horizontal pipe with a rectangular cross section at a speed of 1.00 m/s. The width of the pipe remains constant but the height decreases. 27.3 m from the entrance, the height is half of what it is at the entrance. If the water pressure at
asked by suzan 
Math
Glucose is a common type of sugar. One glucose molecule is made up of 24 atoms. 1/4 of the atoms are carbon, 1/2 are hydrogen atoms, and 1/4 are oxygen atoms. Part A: How many oxygen atoms are there in 50 atoms? Part B:Explain how you found your answer for
asked by Sherman 
Body Systems terminology
Which one of the following statements about colds is false? A. Colds are caused by bacteria. B. Colds result from contact with other affected people. C. Chicken soup and antibiotics work equally well as treatment for colds. D. There’s no immunity to
asked by Anonymous 
chemistry
what is the concentration of phosphate in the original lake water sample if the unknown lake water sample
asked by Anonymous 
Physics
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane. The thickness of the membrane is 0.000000008 m. What is the
asked by Lena 
naths
What is the equation of the line which has gradient 2, and passes through midpoint of (3,4) and (5,6)
asked by Shane 
maths
Write the equations below in the form y = mx + c. State how many solutions each systems of linear equation have. 3x = 6y 2y  6x + 2 = 0
asked by Shane 
icse
aluminium carbide+water gives aluminium hydroxide+methane
asked by sheenu rai 
Math
Indigo Industrial, Inc. is trying to determine which, if any, of five different projects it should undertake. Indigo Industrial has a 8.25% required rate of return on projects that it undertakes. The projected cash flows for each of the projects are given
asked by Jeremy 
math
there are 13 boys and 14 girls in mrs greens class if 3 of the students are absent today what is the ratio of students absent to students present?
asked by kay 
math
The base of triangle ABC is one half the altitude.The altitude of triangle DEF is one half its base. If both triangles are equal in area, what is the ratio of the altitude of triangle ABC to the altitude of triangle DEF ? a. 1:4 b. 1:2 c. 1:1 d. 2:1 e. 4:1
asked by thomas 
Physics
A 245 g toy car is placed on a narrow 70cmdiameter track with wheel grooves that keep the car going in a circle. The 1.0 kg track is free to turn on a frictionless, vertical axis. The spokes have negligible mass. After the car's switch is turned on, it
asked by Kaitlyn 
math
Arc AB of circle O contgains 72 degree and is 6 pi long. Find area of circle O. a. 9 b. 36 c. 30 pi d. 225 pi e. 900 please answer and explain
asked by thomas 
english
Compare the use of verbs in the poems "quickdraw" and "the farmers bride"
asked by nazrin 
criminal justice
how are Ethical Egoism and Virtue Ethics the same and what are the contradictory elements between the two systems
asked by tom 
english
A comparison of the poems "quickdraw" and "the farmers bride"! Discuss the techniques used, analyse the language/structure/form explore layers of meaning and comment on the effect of the reader. E.G compare how the poets use verbs or metaphore or imagery
asked by nazrin 
physics
a 6.0 kW electric oven is connected to a fuse box by a cable of resistance 0.25 ohms. when the cooker is switched on at full power, a current of 26 A passes through it. Calculate the potential difference between the two ends of the cable and the power
asked by eleena 
SkatingDJ
4. The number cube shown is rolled and the spinner shown is spun. Find P(an odd number and yellow). The number cube goes up to five. The spinner has four spaces. two are yellow, one is blue and 1 is green. 1/4 3/4 3/5 3/20
asked by PLS HELP MATH ASAP!!!!! 
Math
If six equilateral triangles are placed side by side so that only two sides of each triangle touch one of the other triangles what shape is formed? We are thinking circle?
asked by Kelley 
elem algebra
the current in a stream moves at a speed of 10 mph. a boat travels 17 mi upstream and 17 mi downstream in a total time of 10 hr. What is the speed of the boat in still water?
asked by jan 
math
Determine the equation of the lines perpendicular to the given lines and passing through the given points:(a)y5x+3=0;(3,2) (b) y=87x;(3,4)
asked by Kevo 
Social Studies
How did Gandhi feel about other religions?
asked by Anonymous 
Math
a 120 foot long rope is cut into 3 pieces. the first piece of rope is twice as long as long as the second piece of rope. the third piece of rope id 3 times as long as the second piece of rope. what is the length of the longest piece of rope
asked by Anastasia Presnyakova 
Social Studies
What were Gandhi's action for Swaraj and they led to? What was partition and what did he do about it?
asked by Anonymous 
geometry
Hi, could someone explain to me the steps I should take to solve the following problem. If radius BE is a perpendicular bisector of chord AC, then what is AB to the nearest tenth? BD is 7cm and DC is 9.
asked by ann 
English Composition
What are some reasons that could persuade your parents to go to places alone with just your friends.
asked by Anonymous 
Math
pg.3 18.Which, if any of the following statements is always true? A. If the numerator and the denominator of a fraction are increased or decreased, by the same amount, the value of the fraction is unchanged. B. If the numerator and the denominator of a
asked by Johnny 
Math
The value of 12 is obtained by multiplying p% by A.12 B.12/p C.p/12 D.1200/p E.100p/12 Is there any work for this?, if so please show work.
asked by Johnny 
Math
X=66 2/3%Y Y=33 1/3%Z Z=(?)%X Please show work. A.16 2/3 B.22 2/9 C.45 D.300 E.450
asked by Johnny 
electrical engineering
A 3ph., 4pole, 60Hz induction motor is supplied by a 660V source. At a particular loading, the total power consumed is 65KW and the current drawn from supply is 70A (assume star connection). The rotor speed is 1760rpm. The stator iron losses are 1.2KW,
asked by nuts 
electrical engineering
A three phase, four pole, 30hp, 220V, 60Hz, Yconnected induction motor draws a current of 77 A from the line source at a power factor of 0.88. At this operating condition, the motor losses are known to be the following: Stator copper losses = 1033 W
asked by nuts 
health
What is major depressive disorder? A. A disorder that is enabling and helps a person function normally B. A disorder characterized by symptoms that interferes with a person’s ability to work, sleep, study, eat, and enjoy oncepleasurable activities C. A
asked by Sarah 
health
Which symptoms are more common in depressed children and adolescents than in adults with depression? A. Fears of separation B. Reluctance to meet people C. General aches and pains D. All of the above
asked by Sarah 
Math
How would a company who manufactures “widgets” benefit in using normal distribution?
asked by Arthur 
Math
An experiment involving learning in animals requires placing white mice and rabbits into separate, controlled environments, environment I and environment II. The maximum amount of time available in environment I is 500 minutes, and the maximum amour of
asked by Anonymous 
Chemistry
a) 45.02% of the sample remains after 85 days. Consider how you can use the percent of Ir192 remaining and the number of days to calculate the mass remaining after 85 days.
asked by ACDub 
algebra
Perform the given set operation. Let U = {1,2,3,4,5,6,7,8,9,10}. Enter the answer as a commaseparated list. Enter EMPTY for the empty set. {3,7,9,} with a bold line over the top
asked by Mary 
criminal justice
explain the relationship between theory and hypothesis development and testing
asked by jo 
geometry
The areas of corresponding faces of two similar triangular prisms are 49cm squared and 25cm squared. What is the ratio of the corresponding side lengths? Of the perimeters of the corresponding faces? Of the volume?
asked by Kasie 
maths
Solve 2y  5x = 3 and x + y = 5 using substitution.
asked by Shane 
English
The Great Gatsby Why did daisy and Tom spend a year in France Answer Are They wanted their little girl to learn French There was no reason Tom's family bought a house in Paris Thanks
asked by snow 
maths
What is the value of p if the line (3p + 1)x  2y = 6p is perpendicular to the line 2x  y + 1 = 0
asked by Shane 
Math
A flower was 1.6 meters high one week ago. In 7 days it grew 11 centimeters. Find the current height of the flower. (1 point) 12.3 m 1.71 m 125 cm or 11.2 cm
asked by A,j 
math
Find the number of term s in the following arithmetic sequence. 3, 9, 15, 21... 123
asked by Anonymous 
math (please check answer)
What type of graph does not show the number of times a response was given? boxandwhisker plot****** line plot stemandleaf plot bar graph
asked by person 
math
a car travelved a distance of 195 miles in 3 hours 15 minutes what is the unit rate
asked by jane 
PLEASE HELP!
Let integral f(x)dx=9 from 6 to 1.5 integral f(x)dx=7 from 6 to 4.5 integral f(x)dx=4 from 3 to 1.5 A. Find integral f(x)dx from 4.5 to 3 B. Find integral (9f(x)7)dx from from 4.5 to 3
asked by Jay 
Calculus Help Please!
If f(x)=Integral (t^3+6t^2+4)dt from 0 to x then f''(x)=?
asked by Jay 
Calculus Please Need Urgent :/
Find the most general antiderivative of f(x)=–8e^x–6secant^2(x) where pi/2
asked by Jay 
Calculus Please Need Urgent3 :/
Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. F(x)= (s^2)/(1+3s^4)ds from sqrtx to 1 F'(x)=? Thank you so much guys!
asked by Jay 
Geography 9R  HELP!
8) Heirs to Genghis Khan established ________________________, which was a time of peace, prosperity, order, and cultural exchange. a. Edit of Japan b. Pax Mongolica c. Pax Romana d. Pax Khan plzz help
asked by Genevieve 
Geography 9R  help!!!
6) This was issued in 1635, forbidding anyone to leave or enter Japan. a. Tang Shogunate b. Edit of Milan c. Edit of Nantes d. Edit of Japan my answer  a am I correct?
asked by Genevieve 
English
1. I can do it. 2. I can't do it.  What is the difference in pronunciation between 'can' and 'can't' in each sentence?
asked by rfvv 
English
1. If you think you can, you can. 2. If you think you can't, you can't.  What is the difference between 'can' and 'can't' in the sentence in pronunciation?
asked by rfvv 
math
The garage you work for as an auto mechanic measures 230 ft. by 150 ft and handles 69 cars. Using the existing garage as a model, how much space would you plan to have in your garage?
asked by justin 
calculus
Let f x coth x . Use the Graph software posted in Moodle to do the following: (a) Graph f x . (b) Graph the tangent and normal lines to the graph of f x at x 1. (c) Graph f x . (d) From the graphs obtained in parts (a)
asked by fatma 
algebra
how many liters of water should be added to a 20 liters of 40% acid solution to obtain a 30% acid solution?
asked by elbert adonis 
Chemistry_DRBob222
Hello Dear I hope everything gorse very well. I did not get any respond from you. I render my solution to the problem over CO2 aq. + H2O ...> H2CO3 how much PH can be put at for the aboveequation under P = 3600 psi, T= 190 oF, 0.208 liters freshH2O as we
asked by Ramtin 
physics
Two forces F1 and F2 ifF1is double that ofF2 and the resultant is perpendicular on F1 then the angle betwee them is Expain ans with reason and diagram
asked by gulzara 
chemistry first year
20L of N2 and 100 L of H2 are reacted to produce NH3 what is the decrease in the V of the mixture N2+3H2> 2NH3 Ans me with reason
asked by gulzara 
maths
In triangle abc, angle abc= ×deg,bc=× and ab=(×+10) ;find the value of x
asked by johan 
calculus
x^4 + 2x^2 + 1 = 0 (x^2)^2 +2x^2 +1 = 0 (x^2 + 1)^2 = 0 I don't know where to go now although I know the answer is x = i, i
asked by Terri 
physics problem
The density of a sample of air is 1.157 kg/m3, and the bulk modulus is 1.42 · 105 N/m2. a) Find the speed of sound in the air sample. > I found it 350.3 m/s and its correct. b) Find the temperature of the air sample. Give answer in °C. > I cant
asked by comet 
math
Anxious Billy Bob pulled out his math recording sheet and saw the following scores 54,62,65,68,70,70,78,82,84 A. He want to calculate his average.Which measure of center is the average?compute it ? I have this :The measure of center is the average, mean
asked by edu 
Math
How do you write a system of linear equations in two variables? Explain this in words and by using mathematical notation in an equation.
asked by Felicia Chase 
Math probability
You roll two fair 6sided dice. Let be the sum of the two independent rolls. (a) Give the PMF of in table form. (b) Give a mathematical expression for the PMF of .
asked by Ozan 
Math
A random variable Y has the following CDF ; Fy(y)= 0 x
asked by Ozan 
Math
The Oscar Drapery Company makes three types of draperies at two different locations. At location 1, it can make 10 pairs of deluxe draperies, 20 pairs of better draperies, and 13 pairs of standard drapes per day. At location 2, it can make 20 pairs of
asked by Anonymous 
math
if sound travels 6770 feet in 6.4 seconds. how far will it travel in one minute
asked by angie 
arithmetic
a car traveled a distance of 195 miles in 3 hours 15 minutes what is the unit rate ? oris it answer 60 miles per hour
asked by jane 
Physics
Concider the arrangement of four 1miroC point charges located at allfour coners of a square with 4cm sides.Calculate the electric field due to the charges in the center of the square.
asked by Stephanie 
maths
30 children are going on a trip. It costs £5 including lunch. Some children take their own packed lunch. They pay only £3. The 30 children pay a total of £110 How many children are taking their own packed lunch?
asked by nazrin 
math
4x4y=12 16y=16x48 identify the solution of the system or equatuions
asked by sabrina 
math
The length of a rectangle is represented by the numerical value of 5V^3. If the recrtangle is equal in area to a squae with a side represented by 4V, what is the width of the rectangle in terms of V? a. 1/80V^5 b. 4/5V c. 16/5V d. 16/5V^2 e. 5V/16 please
asked by thomas 
math
If the hypotenuse of a right triangle is 10 and one leg is 5 square root 3, then the area of the triangle is a. 5 b. 25 square root 3 c. 25 d. 50 square root 3 e. 12.5 square root 3 please answer and explain
asked by thomas