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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
4 answers
asked by
Dylan
2,541 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
7 answers
asked by
kudu
3,829 views
An upper-secondary school is a senior high school. Then is a lower-secondary school a junior high school? Where is the
2 answers
asked by
rfvv
572 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-
3 answers
asked by
Katie
1,083 views
Let x1,x2,x3 be random sample with pdf
f(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 answer
asked by
assma
432 views
Let x1,x2,x3 be random sample with pdf
f(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 answer
asked by
assma
429 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
4 answers
asked by
Snontia
1,208 views
A jet pilot is making a 1000 mile trip in her military Tomcat. She
flies 800 mph for one hour and decides she wants to finish the
1 answer
asked by
Anonymous
412 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 answer
asked by
Maddie
1,177 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.
3 answers
asked by
Mary
1,158 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
4 answers
asked by
Danny
906 views
A wheel starts from rest and rotates with
constant angular acceleration to an angular speed of 9.3 rad/s in 1.39 s. Find the
2 answers
asked by
Johnny
788 views
what is the answer for the question I posted!!!!!!!!!!!!!!!
1 answer
asked by
madeline
370 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
5 answers
asked by
Anonymous
1,448 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
4 answers
asked by
Dan
492 views
isolate for f
1/di = 1/f - 1/do show all the steps pls
1 answer
asked by
samuel
416 views
what was the answer that i posted to you about if you subtract the tens digit from the ones digit.
1 answer
asked by
madeline
336 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
2 answers
asked by
Danny
576 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
2 answers
asked by
Anonymous
657 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
4 answers
asked by
annonymous
636 views
Why are household lamps are not connected series?
2 answers
asked by
Penny
521 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
4 answers
asked by
Sophia
1,715 views
Can someone please help me solve this question please:
In the following position as a function of time equation, find the units
1 answer
asked by
Sammie
456 views
Is there an easier way to solve the following problem without going through 100 guesses trying to find two numbers that total de
4 answers
asked by
Lilly
575 views
If a and b are positive numbers, find the maximum value of f(x)=x^a(1−x)^b, 0≤x≤1
Your answer may depend on a and b.
4 answers
asked by
Dee
6,808 views
Graph the function f(x)=x+4/x
Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find
4 answers
asked by
Bob
2,814 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
4 answers
asked by
Dee
2,172 views
A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 11.39{\rm \\%} naphthalene by mass.
4 answers
asked by
kales
1,435 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
3 answers
asked by
Ava
1,107 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
2 answers
asked by
Sarah
1,076 views
an arrangement of four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a
1 answer
asked by
Anonymous
800 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
2 answers
asked by
Hali
635 views
a researcher weighs each individual in a sample of 25 laboratory rats and calculates the average weight for the group. the
2 answers
asked by
Anonymous
907 views
given relative permitivity of water, how much energy (kj/mol) is required to break the hydrogen bond in water? (Er=80.0)
1 answer
asked by
tom
365 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
2 answers
asked by
Zach
500 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
2 answers
asked by
lynn
576 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
2 answers
asked by
Ava
816 views
For John Dewey, open-minded inquiry is: (Points : 1)
The virtue that prevents habit from making us unwilling to hear other ideas
2 answers
asked by
sam
595 views
Research skills are primarily valued for which of the following reasons
1 answer
asked by
davis
405 views
Calculate the energy of a photon of green light with a frequency of 5.96 ✕ 10^14 s−1
I keep getting 3.88e-21, but the quiz
2 answers
asked by
james
585 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?
2 answers
asked by
Lauren
621 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
4 answers
asked by
alex
1,403 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
2 answers
asked by
Anonymous
1,352 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
2 answers
asked by
Anonymous
576 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
3 answers
asked by
Anonymous
2,193 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 answer
asked by
Sam
523 views
Don’t you dare vote for universalized healthcare. (Points : 1)
Proposition Non-proposition
1 answer
asked by
sam
450 views
Find all the solutions of the equation in the interval {o,2pi)
sec^2x+tanx=1
3 answers
asked by
Tonya
2,174 views
The third and fifth term of an arithmetic progression are 10 and-10 respectively.
a)Determine the first and the common difference
4 answers
asked by
kudu
2,261 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
3 answers
asked by
mako
1,123 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
3 answers
asked by
Anonymous
865 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
2 answers
asked by
Danny
572 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
2 answers
asked by
mako
675 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
10 answers
asked by
Tia
743 views
Describe the shapes in this painting. Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or
5 answers
asked by
abdulkadir
1,690 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 answer
asked by
Baxter Reus
526 views
if you were to sketch a circle graph for a data. what fraction of the circle would represent food and the food $450
16 answers
asked by
leana
3,324 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 answer
asked by
Eva
920 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?
2 answers
asked by
Eva
550 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
3 answers
asked by
Eva
2,063 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
2 answers
asked by
Janey
574 views
i need help with a reason for the season science lab of how earth orbits sun
4 answers
asked by
selina
768 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 answer
asked by
Baxter Reus
496 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
4 answers
asked by
kudu
842 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 answer
asked by
john
452 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
4 answers
asked by
lila
4,148 views
The atmospheric pressure P in pounds per square inch (psi) is given by
P = 14.7 e−0.21 a where a is the altitude above sea
4 answers
asked by
rita
2,576 views
At 500 K in the presence of a copper surface, ethanol decomposesaccording to the following equation.
C2H5OH(g) CH3CHO(g) + H2(g)
3 answers
asked by
mathew
1,999 views
1. Find the molality of the solution prepared by dissolving 0.238g toluene, C7H8, in 15.8g cyclohexane
2. A pure sample of the
6 answers
asked by
kales
4,169 views
Can someone show me a step by step process, along with explanations on how to do this problem?
Thank you. :) Evaluate the
4 answers
asked by
Aria
495 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.
(
3 answers
asked by
kudu
892 views
how to know whether i should use formulaes
in this question or that question becoz i colllapsed and put the formulae to another
1 answer
asked by
vanisri
441 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 answer
asked by
John
659 views
Solve the equation cos (3θ +120°) = √(3 /2 for 0° ≤ θ≤ 180°
3 answers
asked by
dbo
781 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
4 answers
asked by
king
1,243 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
3 answers
asked by
Sadarhri
1,548 views
Find two numbers (exactly) whose product is 10 and whose sum is 18.
4 answers
asked by
Anonymous
445 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 answer
asked by
rfvv
480 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 answer
asked by
Baxter Reus
476 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 answer
asked by
Baxter Reus
463 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
2 answers
asked by
Bethany
1,283 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
2 answers
asked by
Wendy
896 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
2 answers
asked by
Lily
666 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
3 answers
asked by
Lily
465 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 answer
asked by
jeri
496 views
They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?
1 answer
asked by
Jose
390 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.
2 answers
asked by
mpume
724 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
3 answers
asked by
saloni
627 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
2 answers
asked by
gale gale
788 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
2 answers
asked by
gale gale
610 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 answer
asked by
gale gale
550 views
From post C, An airplane and a helicopter travel to different islands.The plane travels.415 km N 60degrees45minutes E to island
6 answers
asked by
Kelly
499 views
would someone in a lift feel lighter or heavier as it accelerated upwards? explain your answer.
1 answer
asked by
gale gale
347 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 answer
asked by
Anonymous
461 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
2 answers
asked by
Sam
530 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 answer
asked by
Anonymous
484 views
assume that a business firm
produces two commod ities, X and Y, with two different inpu ts, Labour (L) and Capital (K). The total
1 answer
asked by
john
459 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
4 answers
asked by
ella
1,412 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
2 answers
asked by
gale gale
567 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
3 answers
asked by
Lily
438 views
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