# Posts by Kailey

Total # Posts: 48

**Math**

Describe the difference between measure of center and measure of variation.

*March 14, 2017*

**Physics 202**

You get a summer internship working with a 589.2nm laser (an intense light source with a very well defined wavelength). You want to spray some oil with noil=1.25 on your glasses with nglass=1.50 as an additional safety feature to protect you from accidental flashes of laser ...

*March 4, 2017*

**physics help please**

A double-slit experiment is performed with light from a Helium Neon Laser on two slits 80 micrometers apart. The first bright interference fringe left of the center is spaced 2m from the bright center. How far away from the double slit is the screen? wavelength =632nm What ...

*March 3, 2017*

**Physics**

The lecturer with a monotone voice of 440 Hz and you are both 2m away from the long, smooth and tall wall. You will hear sound that comes directly to you from the lecturer along with sound that comes back from the wall on it’s way to reaching you. You need the path here ...

*February 23, 2017*

**Physics**

write an equation that relates to frequency(f) applied to the string to the length(L) between the two fixed end points. This was from lab of standing waves.

*February 22, 2017*

**Physics**

Physics instructor grew up with a 3 second rule for lightning bolts to allow estimation of the distance of thunderstorms. Why is that? Explain the difference between the “3 second rule” and the “5 second rule”.

*February 15, 2017*

**4th grade math**

But 60 is not an odd number.

*January 25, 2017*

**science**

The heaviest naturally occurring element is

*November 17, 2016*

**math**

How do i find the radius of s circle with the circumference of 272.2 inches? can anyone help

*April 14, 2016*

**math mrs sue please help or any one**

#1 is B and #2 is B also I am in connection Academy also.

*April 12, 2016*

**science**

The answers are Evaporation,Condensation, and Precipitation.

*February 21, 2016*

**Math**

1. Rishi ram obtained an installment loan for $3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is $516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of $1500 at a 10 percent interest for 12 months. After 4 ...

*March 22, 2015*

**Math**

Hi. I have a few math questions I need some help with. Hamid Husain took out a $50,000, 5-year term policy at age 50. The premium per $1,000 was $4.80. He will be 55 years old this year. The premium per $1,000 will be $6.58. What is the percent increase? MY ANSWER 37.0833% (...

*March 22, 2015*

**Science IPS**

A mass of 10 g of sodium nitrate is dissolved in 10cm3 of water at 80 degrees (c). As the solution is cooled, at what temperature will a precipitate first appear?

*December 1, 2014*

**calculus**

(i know i've asked so many questions. i just want to make sure my answers are right for this homework! hopefully it isn't too annoying for you :) ) Find the derivative of the given function. y=(tan^-1)√(3x) A. (1)/(√(1-3x)) B. (1)/(6√(3x(1+3x))) C. (3...

*November 24, 2014*

**calculus**

Me again. One last question! Again, just needed my answer verified with any explanation or walk-through. The position of a particle moving along a coordinate line is s=√(3+6t) with s in meters and t in seconds. find the particle's acceleration at t=1 second. a. 1 m/...

*November 24, 2014*

**calculus**

thank you!! also had another quick question. when something asks for y'', is there a name for that type of derivative? like what does y'' mean? thanks again. sorry for having so many questions.

*November 24, 2014*

**calculus**

Yeah, i did forget to include that. I put it in a comment above though! Thanks again and sorry about that. 'Find the horizontal tangents of the curve."

*November 24, 2014*

**calculus**

just realized i didn't even specify the directions, haha. it states 'Find the horizontal tangents of the curve.'

*November 24, 2014*

**calculus**

hello! i just needed help to verify or falsify my answer and any explanation as to why would be extremely helpful! thanks ahead of time. y=(x^2)-6x+10 a. at x=3 b. at x=0 c. at x=1 d. at x=-3 my answer was D. thanks again!

*November 24, 2014*

**calculus**

just realized i didn't even specify the directions, haha. it states 'Find the horizontal tangents of the curve.'

*November 24, 2014*

**calculus**

hello! i just needed help to verify or falsify my answer and any explanation as to why would be extremely helpful! thanks ahead of time. y=(x^2)-6x+10 a. at x=3 b. at x=0 c. at x=1 d. at x=-3 my answer was D. thanks again!

*November 24, 2014*

**art history**

Thank you so so much for your help! Regarding the wrong answers. I believe that I have found the correct ones. If you could confirm/deny that would be helpful. If there are any that are still wrong from this bunch - I guess I will wing it but hopefully that shouldn't be ...

*November 17, 2014*

**art history**

Hello! I just need help in confirming/denying my own answers. For wrong answers, any assistance would be appreciated. These are study questions for an upcoming test so guidance would be EXTREMELY helpful. THANK YOU THANK YOU THANK YOU :) 1. The Sanctuary of Fortuna Primigenia ...

*November 17, 2014*

**Hi (I know I asked the same thing)**

Which is a true statement? 6.52 < 6.5 -2.8 > -3.5 -11.1 > -10.7 -7.75 < -8.45 Okay, So I'm stuck. I'm thinking its D? The negatives are really confusing me, I forgot to add the negative sign to the answers last time. Do I look at it like it does not have ...

*November 13, 2014*

**Math (PLEASE!)**

well i see, I forgot to put the negative signs..sorry

*November 13, 2014*

**Math (PLEASE!)**

ohh okay thank u !

*November 13, 2014*

**Math (PLEASE!)**

wait A is so wrong lol .. and D? 8.45 is bigger i think?

*November 13, 2014*

**Math (PLEASE!)**

but how come? At first I thought it was A then D ?

*November 13, 2014*

**Math (PLEASE!)**

Which is a true statement? (Points : 4) A.6.52 < 6.5 B. 2.8 > 3.5 C.11.1 > 10.7 D. 7.75 < 8.45

*November 13, 2014*

**Algebra 1 please help answer**

19.2

*November 4, 2014*

**5th grade math**

The answe is 408

*September 15, 2014*

**math**

Thanks, Steve!

*September 1, 2014*

**Physics**

Vanessa can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east, Vanessa is pulled by a current flowing southward at 2.0 m/s. A) What is the magnitude of Vanessa’s resultant velocity? B) If Vanessa wants to end up exactly across ...

*October 20, 2013*

**Physics**

Vanessa can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east, Vanessa is pulled by a current flowing southward at 2.0 m/s. A) What is the magnitude of Vanessa’s resultant velocity? B) If Vanessa wants to end up exactly across ...

*October 20, 2013*

**Math**

A baseball diamond is a square sides 22.4 m. The pitcher's mound is 16.8 m from home plate on the line joining home plate and second base.. How far is the pitcher's mound from first base? (we are using the LAW OF SINES AND COSINES)

*October 1, 2012*

**ENGLISH**

Scroll all the way down. They're all right. I just took this test and got 100%

*September 5, 2012*

**Algebra 1**

An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two sections. Then solve the ...

*May 6, 2012*

**Chemistry**

The density of a 40.0% by weight aqueous solution of NaOH is 1.432 g/cm3 what is the molarity of NaOH?

*March 21, 2012*

**statistics**

A telephone company's goal is to have no more than five monthly line failures on any 150 miles of line. The company currently experiences an average of 3 monthly line failures per 75 miles of line. Let x denote the number of monthly line failures per 150 miles of line. ...

*September 30, 2011*

**psy Stats.**

how do you Calculate percentage when given standard deviation and mean

*May 10, 2011*

**Statistics Psychology**

I do not understand how to find the critical values of the test statistics. I also need help understanding how to find the standard error as well. Thank you!

*May 10, 2011*

**math**

If a polyhedron has one side that is a triangle what would be the other sides measurements?

*April 5, 2011*

**Physics 1**

The cartesian coordinates of a point in the xy plane are x= -3.64 m, y = -1.75 m. 1. Find the distance, r, from the point to the origin. Answer in units of m. 2. Calculate the angle between the radius-vector of the point and the positive x axis (measured counterclockwise from ...

*August 26, 2010*

**physics**

The disk shaped head of a pin is 1.0 mm in diameter. Which of the following is the best estimate of the number of atoms in the layer of atoms on the top of the surface of the pinhead? 1. 10 to the 34th power 2. 10 to the 19th power 3. 10 to the 24th power 4. 10 to the 29th ...

*August 26, 2010*

**physics**

a.What electric potential difference exists across a 5.2 µF capacitor that has a charge of 2.1 10-3 C? how do i use uF and C into a formula to find answer?? b.An oil drop is negatively charged and weighs 8.5 10-15 N. The drop is suspended in an electric field intensity ...

*February 5, 2008*

**science**

The electric field intensity between two charged plates is 1.1*10^3 N/C. The plates are 0.070 m apart. What is the electric potential difference, in volts, between the plates?

*February 5, 2008*

**physics**

In a television picture tube, electrons are accelerated by an electric field having a value of 1*10^5 N/C. Find the force on an electron. so i know i use E=F/q to find the force but i need the q to get it how do i do that??

*February 3, 2008*

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