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Questions Asked on July 30, 2014

A large number of hydrogen atoms have electrons to the n=4 state.How many possible spectral lines can appear in the emission
1. 6 answers
2. asked by dimpho
3. 2,484 views
Find an equation of the curve that satisfies the given conditions: (d^2y/dx^2)=6x, the line y=5-3x is tangent to the curve at
1. 3 answers
2. asked by Tim
3. 2,833 views
lend me your dictionarywhich part is subject and which part is predicate
1. 5 answers
2. asked by atulya
3. 3,038 views
Brian gave 20% of his baseball cards to Scott and 15% to Adam. If he still had 520 cards, how many did he have originally?
1. 3 answers
2. asked by Help please
3. 3,815 views
A space station has the form of a hoop of radius R = 15 m, with mass M = 6000 kg. Initially its center of mass is not moving,
1. 1 answer
2. asked by sara
3. 1,445 views
Find the resonant frequency of a circuit that has a 400 mH inductor and a 30 nF capacitor connected in series.A) Canadian FM
1. 1 answer
2. asked by seanmarch58
3. 894 views
Lisa can make a costume twice as fast Justin can. If they both work together, they can make it in 8 hours. How long will it take
1. 1 answer
2. asked by Chris
3. 422 views
Sam had a total of 80 foreign stamps and local stamps combined. After giving away 1/3 of his foreign stamps and 10 local stamps,
1. 6 answers
2. asked by Chris
3. 3,176 views
which work do i qualify for with these subjects and my results are very good,i also have a drivers licence with PRDP
1. 2 answers
2. asked by siyabonga
3. 845 views
A researcher is studying the rate of chemical reactions within living blood cells. When placing the cells into a petri dish with
1. 2 answers
2. asked by Dulce
3. 877 views
An object 3.6 feet tall casts a shadow that is 10.8 feet long. How long in feet would the shadow be for an object which is 13.2
1. 1 answer
2. asked by Curtis
3. 386 views
Which of the following is the purpose of the waxy substance that builds up in the ear canal?A. Insulating the ear canal B.
1. 1 answer
2. asked by Dulce
3. 1,257 views
A car travels 2.74 km in the x-direction, then turns left 61.2◦to the original direction and travels an additional distance of
1. 1 answer
2. asked by Anonymous
3. 686 views
I am not sure how to do these.1. Simplify 4√6/√30 by rationalizing the denominator. Show your work. 2. Simplify (2√5 +
1. 1 answer
2. asked by edison1969
3. 1,532 views
Which of the following statements is true of the Gulf of Tonkin affair?A. Johnson told Congress to pass the Gulf of Tonkin
1. 3 answers
2. asked by L
3. 1,424 views
a wheel rotating at 1800 rpm slows down uniformly to 1200 rpm in 2.0 sec. calculate a)the angular acceleration (revs/s^2) of the
1. 2 answers
2. asked by EMMA
3. 1,130 views
a flywheel makes300.rpm. find the angular speed of any point on the wheel and the linear speed(tangential) of a point 5.00m from
1. 1 answer
2. asked by EMMA
3. 1,569 views
The body is fired with an initial angle theta0 and velocity v0. Show that the minimum time that it will reach the line AB is
1. 0 answers
2. asked by Dynamics Problems
3. 425 views
Consider the following 45 base-pair (bp) DNA sequence:1 10 20 30 40 | . | . | . | . | .
1. 0 answers
2. asked by pys
3. 531 views
I have been racking my brain around standard deviation. I came to the conclusion it being a measurement of scores that entails a
1. 2 answers
2. asked by Larry
3. 439 views
y^2/25-x^2/9=0What is the polar equation that is equivalent to the rectangular equation?
1. 2 answers
2. asked by Laila
3. 1,452 views
consider the reaction 2NaF if you begin with 4.8 mol S and 2.6 mole F, what is the limiting reactant and theorical yield of NaF
1. 1 answer
2. asked by michael
3. 486 views
a 60g golf ball leaves the face of the club with a velocity of 75m/s. if the club exerted an average force of 3.0x10to the 4th
1. 1 answer
2. asked by sam
3. 1,059 views
Avery paid $168 on a cell phone. What was the original price of the phone if he got it at a 30 percent discount?
1. 1 answer
2. asked by john
3. 745 views
In order to make 500.0mL of a 1.835 M MgCl2 solution, then _______g of MgCl2 is needed.Moles of MgCl2= (1.835M)(0.5L)=0.9175mol
1. 1 answer
2. asked by Queen
3. 1,225 views
A sample of nitrogen gas has the temperature drop from 250°C to 150°C at constant pressure. What is the final volume if the
1. 1 answer
2. asked by pari
3. 1,535 views
In hypothesis testing, as the a level gets smaller, the level of confidence increases. True or False? And why or why not?
1. 1 answer
2. asked by Nina
3. 452 views
The greenhouse effect is caused by the burning of fossil fuels and deforestation
1. 1 answer
2. asked by Anonymous
3. 847 views
How many quarts of water must be added to 18 quarts of a 32% alcohol solution to dilute it to a solution that is only 12%
1. 1 answer
2. asked by john
3. 1,004 views
Which statement is false?The average kinetic energies of molecules from samples of different “ideal” gases is the same at
1. 1 answer
2. asked by pari
3. 2,060 views
1.A boy has 5 vests and 3 jackets. How many outfits can he wear if he wears both a vest and a jacket?How many outfits can he
1. 2 answers
2. asked by Laila
3. 542 views
1.A father can do a job in a certain number of hours. His son takes twice as long to do the job. Working together, they can do
1. 2 answers
2. asked by Mat
3. 696 views
Adam suffers from severe emphysema. Gas exchange in his lungs is not adequate, and he requires supplemental oxygen. But even
1. 3 answers
2. asked by Colleen
3. 580 views
How do you find the probability of three events happening at the same time? Please walk me through the steps.If you are in ship
1. 1 answer
2. asked by Emma
3. 628 views
This was on my test and have a few more question that is from my test.18.The Sum of five unequal natural numbers is 90. The
1. 1 answer
2. asked by Mat
3. 559 views
1. In order to make 250mL of a 0.100 M HNO3 solution from a 15.9 M stock solution, then _____mL if the 15.9 M stock HNO3
1. 1 answer
2. asked by Queen
3. 835 views
2x^2 + 2y^2 - 8x + 5y + 10 = 0
1. 1 answer
2. asked by Francis
3. 275 views
Are the english teachers on vacation or something?I posted my essay several times and did not see any reply.. Your help is
1. 1 answer
2. asked by Anonymous
3. 552 views
Michelle will divide 36 herbal tea bags and 48 mint tea bags among gift boxes. Each gift box will have the same number of herbal
1. 1 answer
2. asked by Mat
3. 570 views
Victor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a carpayment, $300 on rent, and $50 on
1. 3 answers
2. asked by Sandra
3. 1,196 views
light travelling in air is incident on a soap bubble. If the path difference through the soap bubble is 2.5λ:a) constructive
1. 1 answer
2. asked by Liz
3. 797 views
Respond to the following question about the poem "The Alarm Clock" by Mari EvansWe generally think that poetry uses more pattern
1. 1 answer
2. asked by Melly
3. 1,036 views
how would you prepare 250 mL of 0.69M Al2(SO4)3 solution from a 2.0M Al2(SO4)3 stock solution?
1. 1 answer
2. asked by Cass
3. 621 views
solve the following system of equations using matrices4x-2y=7 7x+y=13
1. 1 answer
2. asked by Keya
3. 449 views
Your finance text book sold 45,500 copies in its first year. The publishing company expects the sales to grow at a rate of 20.0
1. 0 answers
2. asked by ALLEN
3. 475 views
A 3.0g bead has been threaded onto a vertical, frictionless, circular hoop with a 20cmradius. The bead is released from rest at
1. 2 answers
2. asked by Randall
3. 709 views
The endpoints of a diagonal of a square are (-2,2) and (1,5). What is the area of the square?
1. 1 answer
2. asked by Anonymous
3. 1,154 views
What is the angle of elevation of the sun when a tree 7.15m tall casts a shadow 10.1m long
1. 2 answers
2. asked by nomzamo
3. 1,260 views
"there are no bruits auscultated - are bruits and auscultated nouns,pronouns etc?
1. 1 answer
2. asked by barbara
3. 647 views
A specially made pair of dice has only one- and two-spots on thefaces. One of the dice has three faces with one-spot and three
1. 0 answers
2. asked by Sunny
3. 991 views
Using Hess’s Law with the following data:N2(g) + O2(g) = 2NO(g) Del(H) = 180.7kj 2NO(g) + O2(g) = 2NO2(g) Del(H)= -113.1kj
1. 1 answer
2. asked by Dan
3. 1,184 views
Suppose you own a tour bus and you book groups of 20 to 70 people for a day tour. the cost per person is $30 minus $0.25 for
1. 0 answers
2. asked by Tim
3. 743 views
1. “To persuade my audience that drinking and driving laws should be stricter” aims for:A. passive agreement with a policy.
1. 1 answer
2. asked by sarah
3. 620 views
2. “To persuade my classmates that cheating in an exam is just as wrong as plagiarism” is a:A. question of fact. B. question
1. 1 answer
2. asked by sarah
3. 781 views
John, Amos and Peter shared the sum of #126 in the proportiom 1: 2: 4, find the sum of money each received.
1. 1 answer
2. asked by Salvtion c
3. 571 views
Hi, I need help with MLA citing.This is just an example paragraph but please tell me if Im citing correctly : Tom was sad.
1. 1 answer
2. asked by Natalie
3. 499 views
For nonzero numbers x,y, and z, 3x=4y and 12y=5z. What is z/x?
1. 1 answer
2. asked by Anonymous
3. 546 views
1.Read the following statements: I. All trapezoids consist of two parallel sides. II. The base angles of all trapezoids are
1. 2 answers
2. asked by Anonymous
3. 1,607 views
At a speed of 48 miles per hour, how mnay minutes will it take to drive 40 miles?Is it 32 minutes?
1. 2 answers
2. asked by Anonymous
3. 718 views
A small rock passes a massive star, following the path shown in red on the diagram above. When the rock is a distance 4e+13 m
1. 1 answer
2. asked by Zoey
3. 2,503 views
State the cartesian equations of two lines that make angle of 60 degrees with the line r=(1,3)+s(1,1)
1. 1 answer
2. asked by Zac
3. 413 views
Find the scalar equation of a plane that is perpendicular to plane r=(-2,1,3)+s(0,1,1)+t(-1,0,3) and also intersects it along
1. 1 answer
2. asked by Zac
3. 827 views
Solve for x. sec(x)sin(x)=2sin(x)0<=x<=2pi
1. 1 answer
2. asked by Emma
3. 1,119 views
A rectangle is 14cm wide and 48 cm long. Find the measures of the acute angle between its diagonals.please help
1. 1 answer
2. asked by Emma
3. 1,291 views
am grade10 so like i was thinking of joining the acadamy for temporary is it possible?
1. 1 answer
2. asked by Nthabeleng
3. 337 views
using sin(alpha-beta)=(sin alpha)(cos beta)-(cos alpha)(sin beta)use the identity to derive the result proof for :
1. 6 answers
2. asked by Mari
3. 1,193 views
DECOMPOSITION OF NO2 (10/10 points)The decomposition of NO2 at room temperature exhibits the following variation in
1. 1 answer
2. asked by 3.091
3. 648 views
Mike can complete a project in 60 minutes͵ and if Mike and Walter both work on the project͵ they can complete it in 40
1. 1 answer
2. asked by Linda
3. 1,743 views
THE LENGTH OF THE RECTANGLE EXCEEDS ITS WIDTH BY 3 CM. IF THE LENGTH AND WIDTH OF EACH INCREASED BY 2 CM, THEN THE AREA OF NEW
1. 1 answer
2. asked by TRISHIA
3. 820 views
TWO PLANES WHICH APART, FLY TOWARDS EACH OTHER. THEIR SPEEDS DIFFER BY 60 MILES PER HOUR. THEY PASS EACH OTHER AFTER 5 HOURS.
1. 1 answer
2. asked by TRISHIA
3. 607 views
Two sides
1. 1 answer
2. asked by h
3. 367 views
Frances can type 100 pages in h hours. At this rate, how many pages can she type in m minutes?A. mh/60 B. 60m/h C. 100m/60m D.
1. 1 answer
2. asked by Anonymous
3. 613 views
Can anyone please show me how 3^n/6^(2n+1) becomes 1/2^n(6^(n+1))= 1/6)/12^n when you divide top and bottom by 3^n?Thank you and
1. 1 answer
2. asked by Devin
3. 388 views
In order to subject their cash registers to random audit, suppose we want to select a random sample of three people from this
1. 1 answer
2. asked by Allie
3. 561 views
The Angle of depression of Boat A from the top of a cliff which is 32 m high is 24 degree 15 minutes .The angle of depression of
1. 3 answers
2. asked by Mariel
3. 3,119 views
a 50kg box is pushed up a 30 degree plane which is 100m long. what is the speed of the box after being pushed the 100m? Mk=0.1
1. 1 answer
2. asked by sam
3. 435 views
A sphere and a cone have the same volume. Each figure has a radius of 3 inches. What is the height of the cone?
1. 1 answer
2. asked by Emily Snider
3. 547 views
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C.Q: Is R true for all sets A, B and
1. 0 answers
2. asked by Anonymous
3. 423 views
The HCF of 2 no. Is 1/28 of their LCM.The sum of the HCF and the LCM is 116.If one of the no. Is 16 , find the other.
1. 3 answers
2. asked by nitya
3. 948 views
Are there any welfare or subsidy payments that should be reviewed or added?
1. 4 answers
2. asked by Mbongeni
3. 466 views
why is the parcel now warmer than it was at sea level on the windward side (what is the source of the heat energy
1. 0 answers
2. asked by rose givens
3. 574 views
a solid copper sphere 10 mm in diameter has a positive charge arising from the removal of one electron from each 10^12 copper
1. 0 answers
2. asked by wilmer
3. 803 views
Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the
1. 0 answers
2. asked by Melly
3. 564 views
If the sign for delta G is negative (spontaneous process) and sign for delta S is positive (more disorder) for both dissolving
1. 1 answer
2. asked by Fifi
3. 1,808 views
a 68kg skier is speeding down a ski slope that makes a 32 angle with the horizontal. The co-efficient of friction between the
1. 1 answer
2. asked by Jenny
3. 886 views

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