Tuesday
December 6, 2016

Posts by Leslie

Total # Posts: 779

Chemistry
Write a net ionic equation to show that quinoline, C9H7N, behaves as a Bronsted-Lowry base in water.
April 17, 2013

Computer Science
A memory in 64bit architecture has size 1,024Mbytes (note that 1,024 = 2^10). 1)How many 64-bit words is its capacity? How much is this capacity in bits? How much is the same capacity in bytes? 2)How many cells does this memory have? If we want to be able to reference every ...
April 10, 2013

physics
A train accelarates uniformly in a straight line at 0.3m/s^2 from rest. Calculate the velocity 15 seconds after its departure. Calculate time taken to reach 30km/h and calculate Distance covered by the train
April 7, 2013

science
A train accelerates uniformly in a straight line at 0.3m/s from from rest. Calculate the velocity 15 seconds after its depature. Calculate the time taken to reach 30km/h and the distance covered by the train.
April 7, 2013

reading
Has anyone ever read the book tiger rising?
March 27, 2013

social studies!!!
Thank u!
March 26, 2013

social studies!!!
Does anyone know ten DIFFERENT physical features of algeria( in africa) !! If anyone can give me them ur aa life saver"!
March 26, 2013

algebra
volume of cone varies jointly as square of its radius and its height if volume of a cone is 27pie cubic inches when radius is 3 inches and height is 9 inches find volume of a cone when radius is 4 inches and height is 3 inches
March 12, 2013

Math
Thank you!
March 6, 2013

Math
Typo. Students.
March 6, 2013

Math
There are 30 sultry dents in the class. 20% of the students received an A on the last math test. How many students received an A?
March 6, 2013

science
The driving pulley of a motorbike rotates at 3 r/s and has a diameter of 300mm. The pulley exerts an effective force of 2000N at a point on its periphery. Calculate the turning moment and the power in Kw .
March 6, 2013

physics
A vehicle with a mass of 2 tons travels on a horizontal road at a speed of 126km/h.The driver notices a donkey at the side of the road and decides to reduce speed. The brakes are applied and the vehicle slows down to 72km/h after 5 seconds. Calculate the distance travelled ...
March 6, 2013

physics
How do you convert 126km/h to m/s
March 6, 2013

physics
A vehicle with a mass of 2 tons travels on a horizontal road at a speed of 126km/h.The driver notices a donkey at the side of the road and decides to reduce speed. The brakes are applied and the vehicle slows down to 72km/h after 5 seconds. Calculate the acceleration of the ...
March 6, 2013

social studies!!!
What does question 7s answer mean???
March 4, 2013

social studies!!!
Hannah i tryed that before and it didn't work. Thank u damon!!!
March 4, 2013

social studies!!!
I left my textbook in my locker...again. sorry If u can find me a website to help me...great...if u can answer them...even better!! 1. Would shipping be easier to block in the gibralter or bosporus strait? Why? 2.what countries rely on the strait of hormuz to ship their oil? 3...
March 4, 2013

CHEMISTRY HELP!
Calculate [Cu2+] in a 0.10 M CuSO4 (aq) solution that is also 6.4 M in free NH3 . Cu2+(aq) + 4NH3(aq) --->[Cu(NH3)4]2+ (aq) kf = 1.1 x 10^13
March 2, 2013

english
Write a paragraph naming three possible agendas and one example of each that you might find in the media.
February 21, 2013

math
1/3 =
February 19, 2013

Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
February 14, 2013

Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
February 14, 2013

math
the distance between town A and town B was 210km. At 9:20pm a bus sets off from town A to town B and a car left from town B to town A. The average speed of the bus was 60km/h and the average speed of the car was 80km/h. a)Calculate the time at which the car passed the bus. b)...
February 13, 2013

science. neep help ASAP
Ik but she put lots of lines for the title so im guessing it has to be more than one word. I think she was refurring to like family or species or order or genus i really don't know
February 6, 2013

science. neep help ASAP
PLEASS help ASAP. I FORGOT MY FOLDER iN MY LOCKER AND I HAVE NO CLUE WHAT These are. If u can give me the annswer to this one question then i can do all the other ones. DIRECTIONS: in the exercise that follow, arrange the items listed into different groups. Give each group a ...
February 6, 2013

architecture
What are the major characteristics of Mannerist art and architecture? Select a Mannerist painting, sculpture, and architectural work, and describe the Mannerist features of each.
February 5, 2013

Grammar
The butterflies were like floating jewels. SIMILE
January 29, 2013

Grammar
Is a feather dancing in the wind. METAPHOR
January 29, 2013

Grammar
butterflies are fairys. METAPHOR
January 29, 2013

Math
Aren't u supposed to make 20 into a decimal and multiply that by 68? That's what I learned. Either I'm right or he tought my grade wrong lol
January 29, 2013

physics
94
January 29, 2013

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 didn't 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 ...
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

accounting
yes
October 2, 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

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