quinn

When a molecule diffuses from high to low concentration in an example of a cell membrane (let's say neurons) does this generate energy?

Also, when it diffuses from high to low concentration, does this increase entropy, decreasing the amount of free energy, and if so, is this thermodynamically favorable?

A) Na

B) Li

C) Rb

D) K

E) H

I got this question wrong on an exam and I need clarification as to why I got it wrong.

A student spilled 100.0 ml of 6.00M HCL (aq) on the work bench and tried to neutralize it with 0.125 L of 4.00M NaHCO3 (aq).

Will that be enough to get rid of all the acid? Why or why not?

As for my calculations, I did (6M HCL/100 mL) * (1000 mL/1 L) to find the molarity of HCL.

I did (4M NaHCO3/.125 L) * 1 L to find the molarity of NaHCO3.

In the end, my explanation was that even though the student is using more volume to clean up the HCL spill, it contains a smaller molarity than the 100 mL of 6.00 M HCL, so it would not be enough to get rid of the acid.

Any answer is appreciated.

A mass of 240g oscillates on a horizontal frictionless surface at a frequency of 2.8Hz and with amplitude of 4.2cm .

Part A

What is the effective spring constant for this motion?

Part B

How much energy is involved in this motion?

Need help with this problem! Any help is appreciated =)

"On Tuesday, I fractured my knuckle."

Arabic translation would be greatly appreciated!!

"Would you like to go horseback riding?"

I would like this from an English to an Arabic translation.

Recently, I started playing covers on the piano and trumpet. However, I am having difficulty playing with both hands. I'm self-taught.

When I practice a new song, I repeat the verse on my right hand over and over until I can nail it. Same goes with my left hand.

When I try putting them together, I can't properly play, my left hand keeps hitting the wrong key, my right hand is off tempo with my left, I've tried slowing down the tempo to get it.

the current song I'm trying to learn is Midnight Train by Journey.

the last song I played with both hands is I'm Blue by Eiffel 65 and had no problem with that.

Recently, I started playing covers on the piano and trumpet. However, I am having difficulty playing with both hands.

When I practice a new song, I repeat the verse on my right hand over and over until I can nail it. Same goes with my left hand.

When I try putting them together, I can't properly play, my left hand keeps hitting the wrong key, my right hand is off tempo with my left, I've tried slowing down the tempo to get it.

the current song I'm trying to learn is Midnight Train by Journey.

the last song I played with both hands is I'm Blue by Eiffel 65 and had no problem with that.

She is 34 and has 2 children.

This woman gave birth to a daughter when she was 21, with a man whom she was married with. They divorced 2 years later.

A year later, she got pregnant with another man's baby who was married to another woman. To say the least, the man got a divorce from his wife and these 2 were married out of wedlock.

They divorced 3 years later because he wanted to go back to his ex deciding that she was too much trouble.

She is now single, hasn't been in a serious relationship for a long time, and is crazily obsessed with sex.

I learned this term today in Psychology class but my teacher never explained it in depth. What is meant by the construction of memory?

Leo works at two jobs because he wants to earn enough money to buy a new car. In this situation, what is the incentive motivating Leo?

A) Money to buy the car.

B) Feelings of satisfaction for a job well done.

C) Basic selfishness.

D) Anxiety about not having enough money.

I have to use my graphing calculator to "approximate the local maximum and minimum value of the function f(x) = -0.4x^3-0.5x^2+4x-6 for -6<x<4

I know how to find max and min and how to put the function into my calculator, but how do I solve it for -6<x<4?

Thanks in advance.

I can't remember the name of movie, but I think that he went to an England college and made his students throw their books out the window. What was the name of this movie?

1) Stapling your index finger

2) Someone stepping on your head

3) Getting shot in the foot

4) A mug thrown at your face across the room as hard as possible

5) Kicked in the balls/ovaries

I had a weird question on my math test that said something about set notation and had the problem

-2<x<4

true or false?

is -4 a possible answer.

Can anyone help me with this?

http://www.bestbuy.com/site/HP+-+Pavilion+15.6%26%...

1) It produces a perfect bit between an organism and its environment by adaptation

2) It is not goal-oriented

3) It involves trade-offs (compromises)

4) It can increase or decrease the frequencies of heritable traits

Please explain why also!

The percentage of individuals exhibiting a recessive disease in a population is 0.04, which is 4%.

If the population is in Hardy-Weinberg Equilibrium, what percentage of individuals is expected to be heterozygous carriers?

Please show me how you came up with that number.