Questions Asked on
October 22, 2017

Physics
An antihydrogen atom is made using an antiproton and a positron. The spectral lines corresponding to the energy transitions of the positron are then measured. Which of the following statements, if any, are true? A) The measured spectral lines will all be
asked by Kid 
Math
A solid body consists of a cylinder surmounted by a hemisphere of the same radius. The total length of the body, measured along the central axis of cylinder, is 10cm. If the radius of the hemisphere is xcm,show that the volume vcm^3, of the solid body is
asked by Prince 
Projectile motion
So I want to find the speed an object hits the ground. I have the initial speed 45ms, the angle 50degrees and its time in flight 6.7s. So the final speed before impact should be: (45ms)sin(50)9.81(6.7)=31.25...ms Does this seem correct. In my head I was
asked by Anon 
Maths
The difference of two numbers is 5600.the smaller number is 34500.what is the bigger number
asked by Hammaad 
Math
When is the sum of two integers greater than the difference?
asked by Vem 
core mathematics
The first term of an AP is8. The ratio of the 7th term to the 9th term is 5:8. Calculate the common difference of the progression.
asked by Anonymous 
math
It takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. If both machines are used, how long will it take them to pick a bale of cotton?
asked by Ashley 
English
Solve as many as you can 1 pure honey goes with a French wine, Boast about this , then, that’s just fine! 2 a nation here we now may learn, for something they must long or yearn. 3 a musical instrument, now, that’s right, then add a grin, or ray of
asked by Reece 
Maths
The dimension of picture are 30*20cm.what length of wooden frame is needed to frame the fence it, what is the length of the wire needed?
asked by Aishwarya 
Iraq
What were some of the problems that Sir Percy Cox encountered in Iraq after centuries of Ottoman rule
asked by Arazonia 
Physics :(
A standard dorm bedroom at most colleges is 10 ft. wide by 15 ft. long. A bag of regular M&Ms has approximately 200 candies inside of it and usually costs around 67 cents. How much money would it cost to completely fill a dorm bedroom with regular M&Ms? a)
asked by Anonymous 
Theory of Computing
Prove the following identities in a Kleene algebra. a) (a + bb + ba(b + aa)* ab)* = (a + b(ab*a)* b)* b) a* + a*b(ba*b +ab*a)* ba* = (a + b(ab*a)* b)*
asked by Winston 
Physics
What is the power of engine that pulls a 1000 kg automobile at a steady speed of 10 m/sec along a level road?
asked by Anonymous 
Physics
(a) A hotdog vendor named Sam is walking from the southwest corner of Central park to the Empire State Building. He starts at the intersection of 59th Street and Eighth Avenue, walks 3 blocks east to 59th Street and Fifth Avenue, and then 25 blocks south
asked by Destiny 
Algebra
The heights of four of the starting players on the basketball team are 183 cm, 178 cm, 174 cm, and 185 cm. If the mean height of all five starting player is 182 cm, what is the height of the fifth starting player?
asked by Samay 
Math
Old Macdonald planted 60 acres of corn worth $11,700. If each acre yields 65 bushels of corn, what is the value of one bushel?
asked by Samay 
Algebra
Is the product of an odd and an even numbers odd or even?
asked by Samay 
rMath
This is a two part question, make sure you answer both parts: Flo Tilla is pedal boating on Lake Azui. She starts back toward the dock, which is 1000 yards away. She goes at a rate of 25 yards a minute toward the dock. How far is Flo from the dock after 5
asked by Samay 
Algebra
This is a two part question, make sure you answer both parts: In the following subtraction problem the letters A, B and C stand for three different digits ( There are not any other operations involved in this problem). What digits should replace each
asked by Joe 
Maths
A guitarist earns a royalty of 22% of the selling price of a CD. If he earns $2.64 on each CD sold, what is the selling price of the CD?
asked by Brandon 
math
Rachelle and Kayla want to rent a boat while they are at Lake Azul. Floatmore Boats charges $5.00 for insurance and $5.25 an hour. Neversink charges $6.75 an hour. You have to pay the insurance fee to rent at Floatmore and a rental for any part of the hour
asked by Samay 
math
if 9m+57=87 then 9(m+6)=?
asked by Louise 
Math, algebra
in a two by 3 grid, each lattice point is one unit from its nearest neighbours. a total of 14 isosceles triangles( but not right triangles), each with an area of 1\2 u2 have only two vertices that are one unit apart in the grid. how many such half unit
asked by John 
math
In a class of 32 students, all the students study Spanish(S) and 20 of the students study French(F).Calculate the number of students who study Spanish(S) but not French(F).
asked by sydney 
physics
A closed inexpansible vessel contains air saturated with water vapour at 77 degree Celsius.The total pressure in the vessel is 1007mmHg.Calculate the new pressure if the temperature is reduced at 27 degree Celsius (S.V.P of water at 77degree celcius and 27
asked by ada 
Science
What is the function of a cell wall? 1.to protect and sopport the cell****** 2.To perform different functions I’m each cell 3.To prevent water from passing through the cel 4.to prevent oxygen from entering the cell
asked by Annie:~) 
Algebra 2
Can someone see if I got these correct? 1. Solve log5 x = 3. x = 125 2. log3 (x  4) > 2. x > 13 3. Evaluate log7 49. log7 49 = 2 4. Solve log3 x = 4. x = 81 5. The graph of a logarithmic function y = 3^x is a reflection of x = 3^y over the line y = 0.
asked by Nikki 
Math
In a class of 32 students study Spanish(S) and 20 of the students study French(F).Calculate the number of students who study Spanish(S) but not French(F).
asked by sydney 
Math (Pre Algebra) A
Write a translation rule that maps point D(7, 3) onto point D'(2, 5).
asked by Help Plz! Lesson 11 Unit 4 Test 
Chemistry
Calculate the rate constant at 200.°C for a reaction that has a rate constant of 9.20 × 10−4 s−1 at 90.°C and an activation energy of 59.7 kJ/mol.
asked by Jordan 
Physics
A light, ideal spring with a spring constant k = 100 N/m and uncompressed length L = 0.30 m is mounted to the fixed end of a frictionless plane inclined at an angle θ = 30.0° as shown above. Then a mass M 0.300 kg is affixed to the end of the spring and
asked by Jonah 
Algebra
Norman and Suzanne own 42 shares of a fast food restaurant stock and 66 shares of a toy company stock. At the close of the markets on a particular day in 2004, their stock portfolio consisting of these two stocks was worth $1944.00. The closing price
asked by Shaun 
Math, word problem
Lee walked for 20 minutes on a motorized treadmill that was set at a constant speed of 4 miles per hour. About how many miles did Lee walk on the treadmill? A. Between 1/2 and 1 B. Between 1 and 1 1/2 C. Between 1 1/2 and 2 D. Between 2 and 2 1/2 E. More
asked by Lacey 
Physics
What is the average kinetic energy of nitrogen molecule at 20°C
asked by Buma 
math
Data (x,y) for the total number (in thousands) of collegebound students who took a test in the year x are approximately (11,1177), (8,1493), and (11,1664), where x=1 represents 2001 and x=8 represents 2008. Find the values a, b,
asked by lea 
Physics
There is gas in a gas container. A valve on the container will be opened and a quarter of the gas quantity will be released to the outer range. Due to this process the temperature of the gas will be decreased by 20%. What is the decrease of the gas
asked by Buma 
college algebra
List the x value of each real zero and its multiplicity. List them in increasing order. If a listed zero does not exist, enter DNE in both fields.
asked by Riley 
geography
triangle one side is 5 feet one side is 1 foot 1 corner has 90 degrees. how many degrees do the other corners have and how long is the other side?
asked by hildchen 
physics
Explain the term uniform acceleration and average speed
asked by Maxwell 
Social Studies
After identifying the problem, which of the following is the next step an engineer usually takes A. Explore what other people have done about the problem B. Build a prototype to solve the problem C. Identify related problems D. Communicate the results of
asked by kyle 
physics
A stone is tied to a string is made to revolve in a horizontal circle of radius 4m with an angular speed of 2 radian per seconds with what tangential velocity will the stone move off the circle if the string cuts
asked by martins 
cell biology
How do the daughter cells at the end of mitosis and cytokinesis compare with their parent cell when it was at the end of G2 of the cell cycle? a. The daughter cells have half the numbers of chromosomes and half the amount of DNA. b. The daughter cells have
asked by Anonymous 
physics
A stone is attached to the end of an elastic string and whirled round in a circle path of radius 80cm if the stone makes 9 complete revolution in 3 seconds .find its angular and linear velocities during this period
asked by martins 
Physics
A 20N block rests on a table, connected by a massless rope to a 12N block hanging off the table. Assume the pulley is light and frictionless. What is the tension in the rope? ______________________________________ I calculated the masses to be 2.04kg and
asked by Kallian 
Math
I have a rectangle shaped garden with the longer side measuring 14 m and the smaller side measuring 10m. I want to put brick path around the outside with bricks that are 50cm wide. How many bricks will i need?
asked by Rclapham 
World History
Why were the Russians more inspired by the Greek Orthodox Church than the Roman Catholic Church They found Orthodox worship to be beautiful and mysterious and the Catholic Church too austere and plain. They didn’t like the Pope’s approach to
asked by Tragic_Roses 
Math
A dress cost twice as much as a skirt. Mrs. Mason bought 3 dresses and 2 skirts. She gave the cashier $1000 and received $300 in change. How much did a dress cost?
asked by sam 
science
Why are the oldest rocks on earth on continental crusts?
asked by jen 
math
The distance between two piers is S miles. Two boats started moving simultaneously at speeds R1 and R2. How can you find the distance D between them if they moved for T hours towards each other from the two piers
asked by EinsteinSmartsBrain 
computer programming
What does JS HTML CSS stand for????????????????????????????
asked by EinsteinUnSmartBrain 
Maths
x+5+9>10 solve for x
asked by Amilia 
Math
Let's say I had a graph for some experiment that we thought was modelled by a = bcd + g. If we perform an experiment and plot a vs. c, what do we expect the slope and intercept to be? Would intercept = g and slope = b ? If that's right, what would d
asked by Brad 
Chem
How many grams of a 28.0% (m/m) CuSO4 solution contain 39.0 g CuSO4?
asked by Nikki 
Physics
A A child rides a toboggan down a hill that descends at anangle of21.8◦ to thehorizontal. The hill is 42.6 m long. What is the horizontal component of the child’s displacement? Answer in units of m. B  What is the vertical component of the child’s
asked by Anna 
Physics
A quarterback takes the ball from the line of scrimmage, runs backward for 19.0 yards, then runs sideways parallel to the line of scrimmage for 12.0 yards. At this point, he throws a 43.0yard forward pass straight down the ﬁeld. What is the magnitude of
asked by Anna 
Physics
A  A boy runs 12.7 blocks North, 7.5 blocks Northeast, and 14.4 blocks West. Determine the length of the displacement vector that goes from the starting point to his ﬁnal position. B  Determine the direction of the displacement vector. Use
asked by Anna 
Physics
A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 5.5 m to the north, 5.3 m 45◦ north of east, and 8.6 m 13◦ west of south. Starting at the same initial point, an expert (lucky) golfer could make the
asked by Isabelle 
Physics
Tammy leaves the oﬃce, drives 51 km due north, then turns onto a second highway and continues in a direction of 31◦ north of east for 82 km. What is her total displacement from the oﬃce? Answer in units of km. At what angle is her displacement?
asked by Isabelle 
nait
what is the surface area of a cylinder with a diameter of 4cm and height of 6 cm? include the areas of the ends
asked by Anonymous 
Chemistry
What is the frequency in hertz of a photon of light with an energy of 3.93 x 1021J? What is the frequency of light in hertz with a wavelength of 4.12 x 107m?
asked by milo 
calculus 1
Find the critical numbers of the function. (Enter your answers as a commaseparated list. If an answer does not exist, enter DNE.) f(x) = 4x3 + x2 + 4x
asked by John 
Physics
A  A girl delivering newspapers covers her route by traveling 4 blocks west, 2 blocks north, then 6 blocks east. What is her resultant displacement? Answer in units of blocks. B  What is her direction? Use counterclockwise as the positive angular
asked by Lyndsay 
English
They lawyers advised (the client) to stay silent while in court. What is the client? A:Direct Object B:Indirect Object*** C:Predicate Nominative D:Predicate Adjective Is this correct?
asked by marylyn 
chem delta s
if delta s is high which means positive high entropy, then when a drug binds to a protein why is it negative delta s?
asked by suz 
Algebra HELP
What are the real and imaginary parts of the complex number: 6i?
asked by Hannah 
statistic
In a survey, 3 of 4 students said the courts show "too much concern" for criminals. Find the probability that at most 3 out of 7 randomly selected students will agree with this statement. Round your answer to the nearest thousandth.
asked by miyah 
Project Mnagment
Describe the purposes and differences between qualitative and quantitative risk analysis.
asked by Rami 
English
1. A clever animal is made use of by people. 2. The clever animal is made use of by people. 3. Clever animals are made use of by people.  Thank you for your help. I made three sentences using the sturctures A + noun, The
asked by rfvv 
US Government
I just have some questions i'd like to know for the future if anyone can help? *why do vice presidents have more responsiblity now than before *What does the 25th amendment have to do with change?
asked by Jason 
Language Arts
write an essay in which you analyze the importance of plot event and characters actions to the development of the story theme. Note that your essay should focus on the theme first and discuss plot and characters in relation to that theme. Review and
asked by aye 
LAnguage Arts
Write an essay in which you analyze the importance of plot events and characters’ actions to the development of a story’s theme. Review and evaluate a story from the unit that has a clearly identifiable theme. You might choose “Raymond’s Run” by
asked by aye 
maths
The given figure shows a rectangle inscribed in an isosceles right triangle whose hypotenuse is10 units long. Express theÃ¢â‚¬â€¹ ycoordinate of P in terms of x.Ã¢â‚¬â€¹ (Hint: Write an equation for the lineÃ¢â‚¬â€¹ AB.)
asked by Anonymous 
Physics
Two satellites S1 and S2 orbit around a planet P in circular orbits of radii r1 = 5.25 106 m, and r2 = 8.60 106 m respectively. If the speed of the first satellite S1 is 1.65 104 m/s, what is the speed of the second satellite S2? m/s
asked by Young 
Physics
Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit in the inner section at a distance
asked by Young 
World History
Which accurately describes European feudalist society? In the feudal system, approximately 90 percent of people were peasants, and most were practicing Catholics. In the feudal system, approximately 60 percent of people were clergy, and most were
asked by Erick