# Posts by lane

Total # Posts: 45

Chemistry
A 14.7 mL sample of 0.0550 M KOH solution required 55.5 mL of aqueous acetic acid solution in a titration experiment. Calculate the molarity of the acetic acid solution.

Chemistry
By titration, 66.6 mL of aqueous H2SO4 neutralized 11.4 mL of 0.465 M LiOH solution. What was the molarity of the aqueous acid solution?

check my work
21.65

Math/Science
Calculate the minimum change in velocity (delta V or ∆V) required for the Space Shuttle to decrease its altitude to 60 miles if it’s orbiting with an apogee of 260 miles and a perigee of 220 miles above the surface of Earth.

Physics
It is friction that provides the force for a car to accelerate, so for high performance cars the factor that limits acceleration isn't the engine; it's the tires. For typical rubber-on-concrete friction, what is the shortest time in which a car coukd accelerate from 0 ...

calculus
Suppose that a particle moves along a line so that its velocity v at time t is given by this piecewise function: v(t)=5t if 0≤t<1 v(t)=6((t)^(1/2))-(1/t) if 1≤t where t is in seconds and v is in centimeters per second (cm/s). Estimate the time(s) at which the ...

English
Why does Shakespeare not tell us what started the family feud? Answer in complete sentences.

physics
Under what circumstances does a double convex lens produce an image that is reversed left to right?

Pre-Calculus
okay i put it wrong I'm sorry the question said Convert to the Alternate form (Exponential INTO logarithm)

Pre-Calculus
convert to the alternate form to exponential form. a) 5^4=625 b) e^x=y c) log.001=x I really need help on these problems i have no idea how to do it? pls help me i need to study for it on my exam.

Math
There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 19 students who take at least 2 languages at once. If there are 38 Spanish students, 38 French students, and 46 German students, how many students take ...

Math
There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 19 students who take at least 2 languages at once. If there are 38 Spanish students, 38 French students, and 46 German students, how many students take ...

math
l=2w-2 A=lw=(2w-2)(w)=2w^2-2w<26 2w^2-2w<26 2w^2-2w-26<0 -3.14005<w<4.14005, substitute in the first equation to find the value of l -8.2801<l<6.2801

fractions
1. Split three sandwiches three ways, 2. Split two sandwiches into fourth and leave one.

math
using approximation which is greater 31/130 or22/75

algebra
115=-5(1+4b)

math
Write the first 8 terms of the meometric sequence with first term 10 and common ratio 2I.

earth
Find the diameter of the earth. Then divide that measurement by the number of hours it takes for the satellite to go around the earth. divide that number by the number of your "8400" miles

Piloting: stumped
We are studying together and are wondering about some of the same things.

Piloting: stumped
What do I do when, after I have completed the testing and want to go on in my field and am stuck without knowledge because I hadn't learned the subject before. I have all of the materials and tools and have gone over it before but I can't seem to find the topic in my ...

Ground School: Airport Operations
I am taking a ground school class (a preliminary for a private pilot license)and am having trouble taking in all of the information involving memorizing terms, abbrieviations formulas and definitions. How do I get all of those facts and equations to stick in my head? How do I ...

psychology
the fundamental idea behind natural selection is that, within a particular environment, a genetically influenced trait tends to be more successful and thus able to survive and be passed on. Environmental psychologists examine the ________ that led to survival, and which then ...

psychology
the fundamental idea behind natural selection is that, within a particular environment, a genetically influenced trait tends to be more successful and thus able to survive and be passed on. Environmental psychologists examine the ________ that led to survival, and which then ...

math
Which board would be longer? A board that measured 33 cm or a board that measured 1/3 of a meter?

Math
Sam walked 15 ft. up a ramp and discovered he was 9 ft. above the ground. Pam walked an additional 20 ft. up the ramp. How far above the ground is she

physics
8s/9

physics
A,D

geometry
Right triangle ABC is similar to triangle XYZ, because angle B is congruent to angle Y. If side AB equals 15 inches, side BC equals 45 inches, and side YZ equals 9 inches, then what is the length of side XY?

science
______ weathering is a process by which softer,less weather resistent rocks are worn away leaving more weather resistant rocks exposed

math
how do i figue out how to do arrays and an expanded algorithm

Thank you so much.

What is 25% of \$20.00. What is the total cost of the item? I multiplied 20 x .25 and my answer was 5.00 Then I subtracted 5.00 from 20.00 making my final answer \$15.00 for the item. Please tell me if this is correct.

What term was used to describe the trading of slaves and goods to and from three continents? Eight(8)letters

Social Studies
What term was used to describe the trade of slaves and goods to and from three continents

Social Studies
What term was used to describe the trade of slaves and goods to and from three continents

spanish
Thank you very much!

spanish
Complete each of the following sentences by writing the appropriate preterit or imperfect form of the indicated verb. BELOW THESE 43 QUESTIONS ARE MY ATTEMPT AT THE CORREECT ANSWERS. I JUST NEED THESE CORRECTED. PLEASE MARK ANY THAT ARE WRONG AND PROVIDE THE CORRECT ANSWER. 1...

spanish
"Cuando es la fiesta de Arturo" -When is Arturo's party? If you want to answer in spanish (don't know my accents) you would say: -La fiesta de Arturo es ________ And then write when it is.

pre algebra
32yd/min equal how many in/sec

Science
ello mate

communication Technology
Transmission - listening,thinking,searching