Sunday

October 4, 2015
Total # Posts: 644

**math**

galileo showed that objects of different weights fall at the same velocity by dropping 2 objects of different weight form the top of the leaning tower of pisa. a model for the heigh h in feet of an object dropped from an initial h0 feet is h=16t^2+h0, where t is the time in ...
*January 28, 2013*

**Chemistry**

The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29-cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700 cm-1M-1 at 520 nm . a) ...
*January 26, 2013*

**Chemistry**

The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29-cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700 cm-1M-1 at 520 nm . a) ...
*January 26, 2013*

**math**

Thank you very much
*January 23, 2013*

**math**

Oh and my guessed answer was 20/30
*January 23, 2013*

**math**

I'm trying to get ahead of my class and do the in class project at home but I can't figure out what 20 as a fraction is. Can anyone help me out?
*January 23, 2013*

**ANSWER MY QUESTION**

An atom makes up an element
*January 22, 2013*

**ANSWER MY QUESTION**

Omg really? Ya. U know u could have looked that up on google but w.e
*January 22, 2013*

**6th grade s.s forgot textbook in locker!!!!**

Wow thank u so much. I bet u hear that everyday right? Hehe
*January 16, 2013*

**6th grade s.s forgot textbook in locker!!!!**

Well ur not helping me at all! I put those up there because I needed help and nobody s helping..... like u said isn't that what ur here for? Please please please please PLEASE HELP ME! Detentions make me feel like I'm in jail or they seem like that. Can u give me a ...
*January 16, 2013*

**6th grade s.s forgot textbook in locker!!!!**

First lf all this is what the site is for u just don't know how to use it. U didnt say this to anyone else when u were TRYING to help themm.And I did look them up on the internet if u could read that's what I put up there. The internet doesn't answer them correctly...
*January 16, 2013*

**6th grade s.s forgot textbook in locker!!!!**

Need help immediatly!!! If someone already posted please still post! And I'm not doing this becuze I'm lazy but becuze I forgot my textbook in my locker and there's nothing on the internet to help!!! TOPIC: NORTHERN EUROPE 1.What river makes london a center for ...
*January 16, 2013*

**Reading/language arts**

Ohhh thank u very much it took me awhile lol but that was a random sentence hahaha!!!! I love it.
*January 15, 2013*

**Reading/language arts**

They lay under the canopy while the wind tramples upon the trees like a monkey on a rampage. Lol i dk I'm trying my best :)
*January 15, 2013*

**Reading/language arts**

The COWS are dwelling up the stairs in a herd. Get itbecuze I'm comparing kids at school going up the stairs. Lololol haha I really don't know what to right I'm just trying to help lolololol!!!
*January 15, 2013*

**computer**

But I'm not 100% sure I'm 98 percent sure lolz
*January 15, 2013*

**computer**

I got C
*January 15, 2013*

**math**

1 out of 6
*January 15, 2013*

**math. need help asap!!!!!**

Thanks but I finished!!! Thank u so much. Ur my new favorite teacherr!!! Now I'm gonna be coming to u for help becuze I love how u don't just tell me the answer u actually teach me something. Lol good night
*January 15, 2013*

**math. need help asap!!!!!**

1/5
*January 15, 2013*

**math. need help asap!!!!!**

Is that the answer???
*January 15, 2013*

**math. need help asap!!!!!**

Sorry I took so long, I didn't know u answered!!! Oh and its 5
*January 15, 2013*

**math. need help asap!!!!!**

Wow thanks sooooooooooo much. R u a teacher???? And idk how to do them so I don't have a real answer to the others but I'll give it a shot. :) so i think 1.1 equal 1/10. Idk what 1/5 turned into a decimal is.... maybr 1.5 or .15 . And I can't get the last questions...
*January 15, 2013*

**math. need help asap!!!!!**

What's 0.8, and 1.1 as mixed numbers. What's 1 1/2, and 1/5 as decimals? What's 0.09, 2.46, 3/5, and 99/100 as percents. Please help. Due tomorrow!!!
*January 15, 2013*

**5th grade Language Arts**

1. Onomatopoeia 2.alliteration 3.metaphor ( just so u don't second guess urself)
*January 14, 2013*

**science**

Can somebody write an acrostic poem for the ELEMENT mercury?? Thank you very much
*January 13, 2013*

**science**

Omg thanks that's awesome but I already past in the project and now I regret checking back in to see if anybody answered!! :(((
*January 13, 2013*

**science**

Can somebody write an acrostic poem for the ELEMENT mercury?? Thank you very much
*January 13, 2013*

**science**

No becuze all ur work is focused on the rope and pulling it and all the pully machine is doing is going up the rope becuze of the force of u pulling the rope. :)
*January 13, 2013*

**Math**

x+4+2x=-1-5+5x-4x
*December 13, 2012*

**Algebra**

During a hurricane evacuation from the east coast of Georgia, a family traveled west. For part of the trip, they averaged but as the congestion got bad, they had to slow to If the total time of travel was 7 hours, how many miles did they drive at the reduced speed?
*December 11, 2012*

**physics**

A 1.00 x 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?
*December 6, 2012*

**Geometry **

What can you conclude from the given true statements? If there is a full moon tonight, the dog will howl. The moon is full tonight.
*December 6, 2012*

**Geometry**

Write the if-then statement that follows from that pair of true statement. If the doorbell rings, then the dog barks.
*December 6, 2012*

**Geometry**

Write the if-then statement that follows from the pair of true statements If I go to the movie, then I will stay up late If I stay up late, then I will be tired tomorrow
*December 5, 2012*

**Geometry **

Identify the hypothesis and conclusion of the if-then statement. If the doorbell readings, then the dog barks.
*December 5, 2012*

**Geometry **

What's a counterexample
*December 5, 2012*

**Health**

Ken's target heart rate is 122-139bpm. His resting heart rate is 73 bpm. What is his age?
*November 30, 2012*

**Math**

-75= 5(3m-3)-3m. Can someone explained this problem to me and how to solve it. I tried doing it and had several answers
*November 28, 2012*

**Geometry**

Rhombus, rectangle, and squares
*November 28, 2012*

**Math**

K+20<1
*November 25, 2012*

**Math**

X-17/-2=28
*November 25, 2012*

**Physics - Astronomy**

What (decimal) fraction of a hypothetical spherical planet's volume does a planetary core with a radius of 70% of that planet's radius have? Round off answer to three decimal places. [Hint: the volume of a sphere is equal to 4/3 pi times the radius cubed]
*November 15, 2012*

**Physics - Astronomy**

A hypothetical moon is orbiting Saturn in a circular orbit that has exactly 3 times the period that an object orbiting in one of one of the gaps in Saturn's rings would have. As measured from the center of Saturn at what fraction [to 3 decimal places] of that moon's ...
*November 15, 2012*

**science**

Explain the Nitrogen cycle
*November 11, 2012*

**Earth Science**

Explain the Earth's Cabon Cycle
*November 11, 2012*

**earth**

Explain the Nitrogen Cycle
*November 11, 2012*

**Physics**

A particle of mass m1 is tide to a string and describes a circumference on a horizontal plane. The string (of negligible mass)passes through a hole that is in the center of the plane and goes down vertically. At the lower end is tied another particle of m2. If the first ...
*November 11, 2012*

**Physics**

The angular position of a particle that moves around the circumference of a circle with a radius of 5m has the equation: theta = a*t^2 Where a is constant. theta is in radians t is in seconds Determine the total acceleration and its intrinsic components for any time t and give...
*November 11, 2012*

**Physics**

A disk rotates on the horizontal. A blcok is hanging from the tisc, which forms an angle with the vertical of 45 degrees while the disk turns. The radius of the disc is .1mm and the length of the string is .06 m. Determine the velocity of rotation for the system.
*November 9, 2012*

**Physics**

An umbrella with a diameter of 1 m turns 22 rev every 44 seconds. If it's 1.5 m from the ground, calculate the time it takes for a drop to reach the ground and the distance away from the umbrella a person should stand so as to not get wet. For this problem I made a = (0, -...
*November 9, 2012*

**Physics**

I don't know if you'll ever see this but thank you for taking the time to answer all 3 of my questions! I can't tell you enough how much it's helping me
*November 9, 2012*

**Physics**

CIRCULAR MOTION A car takes a curve with 300m radius at a velocity of 60 m/s. a) Determine the change in velocity (module and direction) when it travels an arc of 60 degrees b)Compare the magnitude of the instantaneous acceleration of the car with a magnitude of the average ...
*November 9, 2012*

**Physics**

In a Bohr of a Hydrogen atom, an electron moves in a circle with a radius of 5.10(^-9) cm around a nucleus charged positive due to electrostatic force. What is the intensity of the force so that the electron has a velocity of 2.3 x 10(^8) cm/s? The mass of the electron is 9x10...
*November 9, 2012*

**Geometry**

Distributive Property: -3(5x - 2) -3 (5x) (-2) -15x + 6 = x - 9 Is this correct???
*November 8, 2012*

**Physics Projectile Motion**

What angle (from earth) should one shoot a projectile so that it reaches it's maximum?
*November 8, 2012*

**Physics**

A particle moves with the acceleration a=2e(^-t)i+5cos(t)j In the instant when t=0 the particle is at the point r=i-3j with the velocity v=4i-3j. Calculate the velocity and position of the particle at any instant. I tried doing the problem and ended up just rearranging the ...
*November 8, 2012*

**Geometry**

When a point is on a segment and it is equidistant from endpoints of the segment, what is it?
*November 7, 2012*

**math**

please help me on this riddle : im a 2 digit whole number between 30 and 80 . my tens digit is one more than my ones digit. im a prime number.what number am i ?
*October 29, 2012*

**College chemistry**

When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?
*October 22, 2012*

**College chemistry**

When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?
*October 22, 2012*

**College Chemistry**

When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?
*October 21, 2012*

**Physics**

Which direction (Eastwards or Westwards) in the sky would the Sun appear to move as seen by a stationary observer on the surface of the hypothetical planet that has a sidereal rotation (on its axis) period of 120 days, and a revolution (around the Sun) period of 40 days, where...
*October 12, 2012*

**Writing**

I need help coming up with a thesis statement about how the most important transformation/change during the progressive era was the creation of institutions by activists.
*October 8, 2012*

**physics**

A small fish is dropped by a pelican that is rising steadily at 0.69 m/s. How far below the pelican is the fish after 2.4 s?
*October 5, 2012*

**physics**

if I drop a camera 40m high,how long before it hits the floor? G= 9.81
*September 26, 2012*

**Business**

Assume that you own a sandwich shop. In looking over last year's income statement you see that the annual sales were $250,000 with a gross margin of 50 percent, or $125,000. The fixed operating expenses were $50,000: the variable operating expenses were 20 percent of sales...
*September 1, 2012*

**algebra 1**

3(5y-5x)=45
*August 14, 2012*

**Chemistry**

I am doing a lab report involving limiting reactants and percent compostition. The reactans are calcium chloride dihydrate and potassium oxalate monohydrate, which yeilds calcium oxalate monohydrate. My question is which product should i choose as my varied amount when doing ...
*July 13, 2012*

**chemistry**

In the macy's thanksgivingday parade, 2000, there was a new float, the cheerios'bee, buzbee. the jar of honey it was holding contained 36,763L of helium. the honey jar was 1/10 of the body size. What is the volume of the entire float?
*June 28, 2012*

**History**

How did containment and U.S. preoccupation with communists lead to the use of military force in Vietnam? Analyze the conditions and constraints that made Vietnam a “quagmire” for American forces and policies.
*June 4, 2012*

**History**

Which of Roosevelt’s early New Deal programs illustrate his willingness to experiment with bold, innovative ideas? Which of his actions show his hesitation and attachment to conventional values?
*June 4, 2012*

**Math**

12+(-20) -12+20 15-(-11) -32+(-11)
*May 28, 2012*

**Math**

10+(-5)=
*May 15, 2012*

**Math**

10 +(-5)=P
*May 15, 2012*

**Math**

-8-5
*May 14, 2012*

**algebra**

blank 25 -3-5
*May 6, 2012*

**Math**

8 1/3 * 12
*April 24, 2012*

**Math**

A total of 80 students were asked which flavor of gum they liked the best If 4 out of every 5 students chose cinnamon how many students said they lie cinnamon best
*April 24, 2012*

**Math**

14/25 as a fraction decimal percent
*April 24, 2012*

**Math**

In13/20 of its games, the tigers scored 6 or more runs. In what percent of its games did the tigers score 6 or more runs? A. 65%. C. 60% B. 62.5%. D. 55% Can some one explain
*April 14, 2012*

**Math**

A comet passed by earth in the year 1835 It passes by every 60 years Based on this information in which of the following years can be the comet be expected to Pass by earth A : 2035 B: 2060 C: 2075 D: 2080
*April 7, 2012*

**Math**

On the first day 60% of the 300 tickets were sold HOw many tickets were sold the first day That's part A
*April 1, 2012*

**Math**

Of 300 tickets were sOld to sixth grade students What percent of total number tickets were sold to sixth grade students
*April 1, 2012*

**Math**

Susan saves 7/8 of every dollar she earns round to the nearest cent How much mOney does Susan save from every dollar she earns
*April 1, 2012*

**Math**

I know but I can't find it
*April 1, 2012*

**Math**

Wallace made 14 1/2 cups of soup He used 2/3 in each cup of soup How much water did Wallace put in the soup
*April 1, 2012*

**Math**

Wallace made 14 1/2 cups of soup He used 2/3 cup of water in each cup of soup How much water did Wallace put in the soup
*March 31, 2012*

**Math**

Of the 300 tickets 240 were sold to sixth grade studentss What percent of the total number of tickets sold were sold sixth grade students
*March 31, 2012*

**math**

No you can't
*March 29, 2012*

**physics**

if I know that a astronaut weighs 860n on a unknown planet how do i determine the gravity?
*March 17, 2012*

**English**

Please help me begin a story with these words. 1.exemplary-- (adj) outstanding, an example to others 2.extenuating-- (adj) excusing, lessening the seriousness of guilt or crime, e.g., of mitigating factors 3.florid-- (adj) red-colored, flushed; gaudy, ornate 4.fortuitous-- (...
*March 12, 2012*

**Math**

Solve each equation for 0≤x<2π 1. (cosX)(cosX+1)=0 2. 2sin^2(X)-3sinX=2
*March 6, 2012*

**Math**

Square root.
*March 5, 2012*

**Math**

SIMPLIFY 1.(3+√2)/√2 2. 4/(1+√3) 3.(3+√5)(1-2√5) 4.(3+√8)/((2√3)-4)
*March 5, 2012*

**Math**

OMG thank you so much!
*March 1, 2012*

**Math**

SIMPLIFY 1. ((x/4)-(1/x)) / ((1/2x)+(1/4)) VERIFY 1. secXsin2X = (2-2cos^2X)/sinX
*March 1, 2012*

**Math**

How?
*February 19, 2012*

**Math **

55/3 as fractions
*February 19, 2012*

**Math**

What is the value of the expression below when _= 6? 2+_/3
*February 19, 2012*