Archives
2015
February

Questions Asked on February 9, 2015

The second ionization energy of He is almost exactly four times the ionization energy of H, and the third ionization energy of
1. 1 answer
2. asked by Dylan
3. 2,589 views
A quantity T is partly constant and partly varies as the square root of s.a) Using constant a and b, write down an equation
1. 5 answers
2. asked by kudu
3. 3,857 views
An upper-secondary school is a senior high school. Then is a lower-secondary school a junior high school? Where is the
1. 1 answer
2. asked by rfvv
3. 584 views
Where is the erie canal located?A- New york B- New Jersey C-Maryland D- Maine Cities grew along railroads and canals because A-
1. 2 answers
2. asked by Katie
3. 1,097 views
Let x1,x2,x3 be random sample with pdff(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are
1. 0 answers
2. asked by assma
3. 444 views
Let x1,x2,x3 be random sample with pdff(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are
1. 0 answers
2. asked by assma
3. 439 views
The first term of a geometric sequencf is 3 and the sum of the second and the third term is 60.determine the first three terms
1. 2 answers
2. asked by Snontia
3. 1,221 views
A jet pilot is making a 1000 mile trip in her military Tomcat. Sheflies 800 mph for one hour and decides she wants to finish the
1. 0 answers
2. asked by Anonymous
3. 420 views
A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of the
1. 0 answers
2. asked by Maddie
3. 1,195 views
How many joules of energy are released when 45.0g of water cools from 18.0C to 70.0C? Specific heat of water is 4.184J/gC.
1. 2 answers
2. asked by Mary
3. 1,178 views
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g
1. 3 answers
2. asked by Danny
3. 931 views
A wheel starts from rest and rotates withconstant angular acceleration to an angular speed of 9.3 rad/s in 1.39 s. Find the
1. 1 answer
2. asked by Johnny
3. 805 views
what is the answer for the question I posted!!!!!!!!!!!!!!!
1. 1 answer
2. asked by madeline
3. 377 views
A 0.60 kg object with an initial velocity of 3.0 m/s in the positive x direction is acted on by a force in the direction of
1. 2 answers
2. asked by Anonymous
3. 1,460 views
identify the conditions on x that make the following statement true, if they can be made true at all:9^x > 1 9^x < 1 9^x = 1 9^x
1. 3 answers
2. asked by Dan
3. 506 views
isolate for f1/di = 1/f - 1/do show all the steps pls
1. 1 answer
2. asked by samuel
3. 431 views
what was the answer that i posted to you about if you subtract the tens digit from the ones digit.
1. 1 answer
2. asked by madeline
3. 343 views
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g
1. 1 answer
2. asked by Danny
3. 591 views
if two identical squares have a total area of 18x^2+36x+18, find the length of one side of one of the squares
1. 1 answer
2. asked by Anonymous
3. 670 views
is (u dot v)dot (a dot c) a scalar quantity or vector quantity?What's the difference? (I'm thinking scalar since it has no
1. 3 answers
2. asked by annonymous
3. 652 views
Why are household lamps are not connected series?
1. 1 answer
2. asked by Penny
3. 533 views
Leena bakes a loaf of bread. She eats 1/8 of the loaf and gives 1/6 of it to each of her 3 friends. What fraction of the loaf of
1. 2 answers
2. asked by Sophia
3. 1,727 views
Can someone please help me solve this question please:In the following position as a function of time equation, find the units
1. 0 answers
2. asked by Sammie
3. 466 views
Is there an easier way to solve the following problem without going through 100 guesses trying to find two numbers that total de
1. 3 answers
2. asked by Lilly
3. 591 views
If a and b are positive numbers, find the maximum value of f(x)=x^a(1−x)^b, 0≤x≤1Your answer may depend on a and b.
1. 1 answer
2. asked by Dee
3. 6,831 views
Graph the function f(x)=x+4/xGraph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find
1. 1 answer
2. asked by Bob
3. 2,832 views
At 2:00pm a car's speedometer reads 60mph, and at 2:10pm it reads 65mph. Use the Mean Value Theorem to find an acceleration the
1. 2 answers
2. asked by Dee
3. 2,190 views
A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 11.39{\rm \\%} naphthalene by mass.
1. 2 answers
2. asked by kales
3. 1,452 views
In a game against the White Sox, baseball pitcher Nolan Ryan threw a pitch measured at 44.8 m/s. If it was 18.4 m from Nolan's
1. 2 answers
2. asked by Ava
3. 1,121 views
By applying Rolle's theorem, check whether it is possible that the function f(x)=x^5+x−5 has two real roots.Answer: (input
1. 1 answer
2. asked by Sarah
3. 1,089 views
an arrangement of four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a
1. 0 answers
2. asked by Anonymous
3. 808 views
Ms. Hardin invested $60,000 in three stocks. The first year, stock A paid 7% dividends and increased 4% in value; stock B paid
1. 1 answer
2. asked by Hali
3. 651 views
a researcher weighs each individual in a sample of 25 laboratory rats and calculates the average weight for the group. the
1. 1 answer
2. asked by Anonymous
3. 928 views
given relative permitivity of water, how much energy (kj/mol) is required to break the hydrogen bond in water? (Er=80.0)
1. 0 answers
2. asked by tom
3. 373 views
A projectile is launched at 5.4 m/s with an initial angle of 22 degrees from an initial height of 2.6 meters. Where will it
1. 1 answer
2. asked by Zach
3. 508 views
An alligator’s tail length, T, varies directly as its body length, B. An alligator with a body length of 4.5 feet has a tail
1. 1 answer
2. asked by lynn
3. 592 views
A tennis ball (mass 57.0 g) moves toward the player's racquet at 46.4 m/s. It is in contact with the racquet for 3.60 ms, after
1. 1 answer
2. asked by Ava
3. 834 views
For John Dewey, open-minded inquiry is: (Points : 1)The virtue that prevents habit from making us unwilling to hear other ideas
1. 1 answer
2. asked by sam
3. 609 views
Research skills are primarily valued for which of the following reasons
1. 1 answer
2. asked by davis
3. 422 views
Calculate the energy of a photon of green light with a frequency of 5.96 ✕ 10^14 s−1I keep getting 3.88e-21, but the quiz
1. 1 answer
2. asked by james
3. 596 views
A lamp that normally sells for $35 is on sale for 35% off. How much will the lamp cost after a 8% sales tax?
1. 1 answer
2. asked by Lauren
3. 633 views
Calculate the energy of a photon of wavelength 3.1 µm with that of wavelength 0.166 nm.What I Got: 3.1 µm photon: 6.36x10^22j
1. 2 answers
2. asked by alex
3. 1,474 views
A 10-kg block is pushed against a vertical wall by a horizontal force of 100 N. What is the coefficient of static friction
1. 1 answer
2. asked by Anonymous
3. 1,371 views
A 5.0-kg box is pulled horizontally with a 45-N force that makes angle of 40 degree with the horizontal. The coefficient of
1. 1 answer
2. asked by Anonymous
3. 588 views
A 4-kg block is connected by means of a massless rope to a 2-kg block. What is the magnitude of the acceleration if the
1. 1 answer
2. asked by Anonymous
3. 2,212 views
Help I don't understand how to do this homework question, we didn't go over any like it in class.A car has an average speed of
1. 1 answer
2. asked by Sam
3. 534 views
Don’t you dare vote for universalized healthcare. (Points : 1)Proposition Non-proposition
1. 0 answers
2. asked by sam
3. 460 views
Find all the solutions of the equation in the interval {o,2pi)sec^2x+tanx=1
1. 1 answer
2. asked by Tonya
3. 2,195 views
The third and fifth term of an arithmetic progression are 10 and-10 respectively.a)Determine the first and the common difference
1. 2 answers
2. asked by kudu
3. 2,275 views
A stock that sold for $17per share at the beginning of the year was selling for$96 at the end of the year. If the stock paid
1. 1 answer
2. asked by mako
3. 1,142 views
I am in a car and travel for 12 minutes. Below are the speeds in mph, recorded every two minutes. Use trapezoids, right-bound
1. 2 answers
2. asked by Anonymous
3. 879 views
REALLY NEED HELP WITH THIS PLEASE.One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How
1. 1 answer
2. asked by Danny
3. 583 views
Tuition of $1762 will be due when the spring term begins in 8 months. What amount should a student deposit today, at 5.47%, to
1. 1 answer
2. asked by mako
3. 687 views
Hi, I need help on this as soon as possible. Thank you.1. Which of the following events, characters, or objects can be said to
1. 9 answers
2. asked by Tia
3. 767 views
Describe the shapes in this painting. Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or
1. 4 answers
2. asked by abdulkadir
3. 1,704 views
I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then
1. 0 answers
2. asked by Baxter Reus
3. 537 views
if you were to sketch a circle graph for a data. what fraction of the circle would represent food and the food $450
1. 16 answers
2. asked by leana
3. 3,348 views
A rope is attached from a truck to a 1403 kg car. The rope will break if the tension is greater than 2375 N. Neglecting
1. 0 answers
2. asked by Eva
3. 938 views
A 2011 kg elevator moves with an upward acceleration of 1.9 m/s2. What is the tension in the cable that supports the elevator?
1. 0 answers
2. asked by Eva
3. 560 views
You work at a garden store for the summer. You lift a bag of fertilizer with a force of 122 N, and it moves upward with an
1. 1 answer
2. asked by Eva
3. 2,074 views
Solve the system of linear equations by substitution:1.) y=2x+3 y=3x+5 2.) y=1/3x+2 y=1/6x+4
1. 1 answer
2. asked by Janey
3. 586 views
i need help with a reason for the season science lab of how earth orbits sun
1. 3 answers
2. asked by selina
3. 783 views
I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then
1. 0 answers
2. asked by Baxter Reus
3. 508 views
A point is directly below a window. Another point B is 15 m from A and at the same horizontal level. From B angle elevation of
1. 3 answers
2. asked by kudu
3. 858 views
trying to help the kid with hw but not smart enough. please help.Thank You! -(5/7) ^ -2/5 can be written as -(a)^b where "a" is
1. 1 answer
2. asked by john
3. 460 views
please check my answers?Your client wants his dining room to be a cozy, dark, nighttime room where he can entertain just one or
1. 1 answer
2. asked by lila
3. 4,165 views
The atmospheric pressure P in pounds per square inch (psi) is given byP = 14.7 e−0.21 a where a is the altitude above sea
1. 1 answer
2. asked by rita
3. 2,601 views
At 500 K in the presence of a copper surface, ethanol decomposesaccording to the following equation.C2H5OH(g) CH3CHO(g) + H2(g)
1. 1 answer
2. asked by mathew
3. 2,013 views
1. Find the molality of the solution prepared by dissolving 0.238g toluene, C7H8, in 15.8g cyclohexane2. A pure sample of the
1. 5 answers
2. asked by kales
3. 4,196 views
Can someone show me a step by step process, along with explanations on how to do this problem?Thank you. :) Evaluate the
1. 3 answers
2. asked by Aria
3. 509 views
A cylinder container of radius 15 cm has some water in it. When a solid submerged into the water, the water level rises 1.2 cm.(
1. 1 answer
2. asked by kudu
3. 908 views
how to know whether i should use formulaesin this question or that question becoz i colllapsed and put the formulae to another
1. 0 answers
2. asked by vanisri
3. 447 views
The radius of circle is given as 2.8 cm to 2 significant figure(a) If C is the circumference of the circle, determine the limits
1. 0 answers
2. asked by John
3. 670 views
Solve the equation cos (3θ +120°) = √(3 /2 for 0° ≤ θ≤ 180°
1. 1 answer
2. asked by dbo
3. 792 views
A and B are twos 360 km apart. An express bus departs from A at 8 a.m. and maintains an average speed of 90 km/h between A and
1. 2 answers
2. asked by king
3. 1,260 views
A sled at rest is suddenly pulled in three horizontal directions at the same time, but it does not move. Paul pulls to the
1. 1 answer
2. asked by Sadarhri
3. 1,560 views
Find two numbers (exactly) whose product is 10 and whose sum is 18.
1. 3 answers
2. asked by Anonymous
3. 456 views
1. She sucked a mint.2. She sucked on a mint. 3. She sucked at a mint. 4. Stop sucking your thumb! 5. Stop sucking on your
1. 1 answer
2. asked by rfvv
3. 494 views
I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then
1. 0 answers
2. asked by Baxter Reus
3. 487 views
I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then
1. 0 answers
2. asked by Baxter Reus
3. 475 views
1. At a basketball game, the ratio of the number of freshmen who attended to the number of juniors who attended was 3 to 4. The
1. 1 answer
2. asked by Bethany
3. 1,299 views
1. The ratio of the number of dimes to the number of pennies in a purse is 3 to 4. If 3 pennies are taken out of the purse, the
1. 1 answer
2. asked by Wendy
3. 908 views
A team has won 60 percent of the games it has played so far. If the team wins the 15 remaining games in the season, it will have
1. 1 answer
2. asked by Lily
3. 679 views
car A costs 20 percent less than car B. Car B costs twice as much as Car C. The cost of Car C is what percent of the cost of Car
1. 2 answers
2. asked by Lily
3. 475 views
You will receive Sh. 20,000 five years from now. The discount rate is 8 percent. What is the value of your investment today?
1. 0 answers
2. asked by jeri
3. 506 views
They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?
1. 1 answer
2. asked by Jose
3. 399 views
A stone with a mass of 6kg is thrown vertically upwards from the top of a building 35m high with a starting velocity of 20m/s.
1. 1 answer
2. asked by mpume
3. 734 views
solve the following system of linear equation by matrix method:-12p+4q+17r+11s=5 14p+8q+9r+4s=8 3p+7q+2r+5s=12 5p+12q+9r+7s=7
1. 2 answers
2. asked by saloni
3. 638 views
Draw a right -handed rectangular reference frame with axes ranges x = -5 to +5, y = -5 to +10 , z = -5 to +5. Sketch the
1. 1 answer
2. asked by gale gale
3. 797 views
A body of mass 11kg falls freely from rest from a height of 15m above the ground. 3m above the ground it breaks through a thin
1. 1 answer
2. asked by gale gale
3. 624 views
A lift of mass 1500 kg is raised by means of a rope passing round a drum of diameter 1.50 m. Given that the lift is accelerating
1. 0 answers
2. asked by gale gale
3. 560 views
From post C, An airplane and a helicopter travel to different islands.The plane travels.415 km N 60degrees45minutes E to island
1. 5 answers
2. asked by Kelly
3. 512 views
would someone in a lift feel lighter or heavier as it accelerated upwards? explain your answer.
1. 0 answers
2. asked by gale gale
3. 354 views
A drawer contains 8 white socks and 5 black socks if two socks are chosen and you get 2 pair of white socks what is the
1. 1 answer
2. asked by Anonymous
3. 468 views
A man is between two tall buildings 8m away from the taller building. If the angle of the top of the building from where he
1. 1 answer
2. asked by Sam
3. 541 views
A drawer contains 8 white socks and 5 black socks if two socks are chosen and you get 2 pair of white socks what is the
1. 1 answer
2. asked by Anonymous
3. 491 views
assume that a business firmproduces two commod ities, X and Y, with two different inpu ts, Labour (L) and Capital (K). The total
1. 0 answers
2. asked by john
3. 468 views
From an airplane at an altitude of 1200,the angle of depression to a rock on the ground measure 28 degrees find the horizontal
1. 3 answers
2. asked by ella
3. 1,428 views
A lift of mass 1500 kg is raised by means of a rope passing round a drum of diameter 1.50 m. Given that the lift is accelerating
1. 0 answers
2. asked by gale gale
3. 579 views
Hello! I need help with this question. I have an answer but I wanted to make sure it's correct. Thanks!Question: Which of the
1. 2 answers
2. asked by Lily
3. 455 views

Back to February 2015

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2024