Posts by ANON
Total # Posts: 2,802
I figured it out! Thank you so much, I really do appreciate it.
An ethylene glycol solution contains 18.2g of ethylene glycol (C2H6O2) in 85.4mL of water. Calculate the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water.)
So would it be Delta T = i*Kf(0 degrees C)*1.40 Delta T/Kf *1.40v= i?
Benzene is a carcinogenic (cancer-causing) compound. A benzene-contaminated water sample contains 3.1×10−5% benzene by mass. What volume of the water in liters contains 225mg of benzene? (Assume that the density of the solution is 1.0 g/mL.)
1.estoy 2.están 3.está 4.butterflies
70% of 8 students would be 5.6, so estimate either 5 or 6
Is the gradient of a function basically like the slope field. Also what is a conservative vector field. I know the definition but I'm having trouble visualizing it Thanks
Andy ran a 5-kilometer race in 40 minutes. If Andy maintains that same place, how many kilometers did Andy run In 1 hour?
Social Studies HELP!!
What can we infer from "they ought to get the sane treatment as Mr. Carlisle? What did Mr. Carlisle do? What was his treatment?
A gas mixture is composed of 4.3 grams of hydrogen (density at STP = 0.089 g/L) and 2.9 grams of helium (density at STP = 0.179 g/L). What is the percentage (v/v) helium in the mixture? If v/v = Volume of gas/total volume how would we find the volume of both of the gases?
Would the answer be .25596? 8.1/100= .081 .081*3.16= .25596
How many liters of CO2 gas are contained in a 3.16 liters of a gas mixture which is 8.1% (v/v) CO2? They never gave us the formula or a process to figure this out in class. Will you please help?
How fast is an object traveling after 3seconds if its terminal velocity is about 35 m/s.?
What is the horizontal component of the force of an object sloped at a 45° angle. pulling with a force of 110N.
The number of meters decreased by 25.6 is 84.3 meters.
Please help me write an equation for these two: Ten fewer than the number of band instruments is 47 instruments. The number of meters decreased by 25.6 is 84.3 meters
An unidentified flying object is cruising 30.0° north of east at a speed of 2132 km/h. How fast is it moving to the north?
ms sue it Is AAA
Is lun right???
What did Samuel Adams and Paul Revere do in the Boston Massacre?
a lab has two bacterial cultures. culture a contains 8×10^4 bacteria and culture B contains 4 × 10^6 bacteria. How do the two cultures compare in size?
Choose a number. Multiply by 2. Add 6 to the product. Divide by 2. Then subtract 3. What is the answer? Repeat this process using two different numbers.
A 2.7 kg object falls from a tower. It experiences 2.3 N of air resistance. What is the acceleration?
would multiplying 3 negative integers always equal a positive integer?
what about 3 negatives? would the product always be positive?
is a negative times a negative ALWAYS positive? or can it be negative as well?
please help! algebra
find the next two numbers in the pattern: -12, 60, -300, 1500
1.A 2.C 3.D 4.C 5.B 6.B 7.D 8.C 9.B 10.C These are the correct answers.i got a 100 with these
X/4 + 7 = 3
-1.4b + 10 = (-18)
2/3y + 6 =15
What is the volume occupied by 0.252mol of helium gas at 1.35atm and 305K ?
A bag of potato chips contains 575mL of air at 25.0∘C and a pressure of 765mmHg . Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 458mmHg and the temperature is 10.0∘C?
Thank you. That helped a lot.
A balloon contains 0.126mol of gas and has a volume of 2.78L. If an additional 7.0×10−2mol of gas is added to the balloon, what will its final volume be?
THANKS THEDARKONE 100% C C B D B
Calculate the concentrations of all species in a 1.22 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 102 M and Ka2 = 6.3× 108 M.
How did the Proclamation of 1763 attempt to protect the Native American rights and land?
The slowest mammal on Earth is the sloth. A sloth might move along a tree at a maximum rate of just 3 ^-1m each minute. At this rate, how long will it take a sloth to climb a tree that is 33 m tall?
Bbb is right
Max = (-5/3,0) Min = (0,0)
How many moles of ammonia are in 1.20E25 molecules of ammonia.
You can say "On dit X" (One could say X) or "Le mot est X" (The word is X)
Write each expression using a single exponent. Xy^5 x^3 y^7
-A is right guys. ONLY APPLIES TO C0NNECTI0NS ACAD3MY
The blades of a ceiling fan have a radius of 0.393 m and are rotating about a fixed axis with an angular velocity of +1.36 rad/s. When the switch on the fan is turned to a higher speed, the blades acquire an angular acceleration of 1.82 rad/s2. After 0.475 s have elapsed since...
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. The string has a length of 54 cm and is wound around the top at a spot where its radius is 2.2 cm. The thickness of the string is negligible. The top is initially ...
or rather were questions
1)What could have caused the impurity in the sodium hydroxide solution? 2)Why was it necessary to dilute the hydrochloric acid before carrying out the titration? This was a question from a titration practical in which we had to dilute HCL then use that along with 25cm3 of NaOH...
A floor polisher has a rotating disk that has an 11-cm radius. The disk rotates at a constant angular velocity of 1.1 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 43 s, in order to buff an especially scuffed...
(-3) ^-4 5 ^-2 =?
Update from the end of november, it is still B A D C 4/4.
Connection whiz is 100% right. thanks!
How to solve 2^-1/5^2 ?
Help: Social Studies (Please check my answers)
Your a fake.
3^-2/n and 7ab^-2/3w .
please help english
To anyone who wants the CORRECT answer, its "The girls love to swim at Julie's house" not what "writeacher" said, i just took the quiz and this was the correct answer (even though this post is dead)
please check my english
Leah is right, she has the correct answers for "The Destructors Part 1" quick check
A 300mL solution was made by dissolving 5.0g of MgCl2 in water. What is its molarity?
A person has 29 1/2 yards of material available to make doll outfits. Each outfit requires 3/4 yard of material. a: How many outfits can be made? b: How much material will be left over?
Melanie has 84 muffins, which he needs to box up, 9 of which are blueberry, into dozens. How many boxes does she need?
Tim has forty five books. Jason has forty two times more books than Tim. How many books does Jason have?
New France is _____ of the Appalachian Mountains.
A poll asked 500 adults if they thought Ontario should produce more, less or maintain current production of ethanol. -160 people responded "more ethanol production" -136 people responded "less ethanol production" -155 people responded "maintain current...
Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of satellite A is eighty-two times that of satellite B. Find the ratio (TA/TB) of the periods of the satellites.
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 18.0 m. She pushes in a direction 20.0° below the horizontal. A 40.0-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? (b) ...
But how do you go about finding time since it is not given and you are only given a magnitude of the force and not the velocity
A golf club strikes a 0.041-kg golf ball in order to launch it from the tee. For simplicity, assume that the average net force applied to the ball acts parallel to the ball's motion, has a magnitude of 6400 N, and is in contact with the ball for a distance of 0.012 m. With...
Suppose in the figure blow that +1.00 103 J of work is done by the force F with arrow (magnitude = 30.0 N) in moving the suitcase a distance of 51.0 m. At what angle θ, counterclockwise from the x-axis, is the force oriented with respect to the ground?
Social Studies (SS)
Sorry I accidentally put math but can you please Describe George Washington's expeditions into French territory.
nvm got it!
help on thesis writing
Hi, I have two questions here I need help with, thank you in advance. 1. Peggy scored 68 on her first three tests of the term. What would she have to score on the fourth test to have an average of 70 on the fourth test? 2. If you were to place the digits 1,2,4,8,9, one per box...
Identify the property of integers being illustrated in each of the following: a:(-2)(3) (the "E" letter) element of I b: (-4)0=0 c: -2(3+4)=-2(3) + (-2)4 d: (-2)3=3(-2)
Identify the property of integers being illustrated in each of the following: a:(-2)(3) ¸ I b: (-4)0=0 c: -2(3+4)=-2(3) + (-2)4 d: (-2)3=3(-2)
If x is an integer and x is not equal to zero, which of the following are always positive and which are always negative? a: -x to the power of 4 b: (-x) power of 4 c: x to the power of 4 d: x e: -x
Writeacher isn't so very nice. Ms. Sue is way nicer
AP Calc B/C
the integration of (e^x)/(1-E^2x)^3/2 with respect to x We are currently doing integration by tables, but I can't find the formula that I should use!
Becky is right, 10/10.
A stone is tied to a string (length = 0.700 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in ...
A car is safely negotiating an unbanked circular turn at a speed of 18 m/s. The road is dry, and the maximum static frictional force acts on the tires. Suddenly a long wet patch in the road decreases the maximum static frictional force to one-ninth of its dry-road value. If ...
As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover the same distance on ...
Spanish--check my answers please?
Anony's answers are 100% correct, thanks.
A website promoting the use of alternative energy vehicles and hybrid technologies claims that, \"A typical automobile in the USA uses about 40 gallons of gasoline every month, producing about 750 lbs of carbon dioxide.\" To determine the truth of this statement, ...
using your initial mass of copper, calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper(II) nitrate? Original mass of copper was 0.40g.
Calculate the dot product Ā·Ê(where Ê = Ē/E ~ is the unit vector in the direction of Ē ) and plot both Ā and Ê, showing how Ā·Ê is the projection of Ā on Ê. Ā= −4i + 3j Ē= 12...
A 15.27 g sample of Mo2O3(s) is converted completely to another molybdenum oxide by adding oxygen. The new oxide has a mass of 18.33 g. Add subscripts below to correctly identify the empirical formula of the new oxide.
MR.Smart is 100%
Science(Stuff to do like with magnets!)
Lorenzo and Mr.Smart are lying.
AP Calc B/C
Find the arc length of one arch of the sine curve. I started it by doing y=sinx, y'=cosx arc length= integral of sqrt(1+cos^2x)dx from pi/2 to 3pi/2 but I don't know how to integrate that! Thank you!
Accounting - General
Should a capital asset that is increasing in value be depreciated?
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 7.8 m waterfall. If the spy's speed is 11 m/s and the officials' speed is 22 m/s...
In return for offering the throne to William and Mary, it was demanded that all laws had to be approved by? A: Parliament B: King James C: The Catholic Church D: The Protestant Church My answer is A. Can someone please check if this is right?
I'm writing an essay. Is this semi-colon used appropriately or should it be a new sentence? At the age of six, India seemed like a completely different world to me; they had a different way of life than anything I had ever been exposed to.
why is the world round, but look flat???????
They send text books for this class! I'm in the class myself, but having trouble. These are not easy classes. You have to study!