# Charlie

Questions and responses by Charlie, page 4-
## Calculus

lim (2Q^(2)+5)/(q+2) q->2 lim |y+3| y->-3

*asked on October 27, 2012* -
## Maths

For y= 2x squared + x - 1 the x-intercepts and the turning point respectively are?

*asked on October 21, 2012* -
## chemistry

how would you, explain ans how calcium chloride [CaCl2] is bonded.

*asked on September 20, 2012* -
## earth science

descibe the advanages of plotting data in graph form

*asked on September 19, 2012* -
## Physics

An EM wave has a wavelength of 620 nm. What is its frequency? How would we classify it?

*asked on April 12, 2012* -
## Math

What does KAPS mean in Math?

*asked on August 18, 2011* -
## statistics

A population of 200 voters contains 52 Republicans, 128 Democrats, and 20 independents and members of other parties. A simple random sample of 20 voters will be drawn from this population. The expected number of Republicans in the sample is? and The

*asked on July 26, 2011* -
## Algerbra 1

A(1,4), (6,8) Round to the nearest tenth

*asked on May 24, 2011* -
## algebra

how do you solve for y in the equation 1/y=(1/3)x^3-(253/12)

*asked on March 22, 2011* -
## Traveling(saving money)

how much are plane tickets to: india england

*asked on February 23, 2011* -
## math

write the 100-complement of 40

*asked on January 20, 2011* -
## math

need help please. thanks evaluate and simplify. (8x/y) for x=10 and y=2

*asked on November 14, 2010* -
## Periodic Table

Hello all, how does the periodic table determine the type of bonding of compounds Cheers Charlie.

*asked on October 13, 2010* -
## 11th grade

Suppose you surveyed 50 students and 34 said that they approve of how the president is doing. Construct 90%, 95%, and 99% confidence intervals for the true proportion of students in your school who approve of how the president is doing. Be sure to

*asked on September 12, 2010* -
## College Physics

A 50 kg skater moving at 5 m/s over frictionless ice grabs a rope stretched out 10m from a post and perpendicular to her path. She then moves in circles, spiraling inward as the rope wraps around the post. How fast is she moving when she is 2 meters from

*asked on September 11, 2010* -
## math

desperately seeking help. work must be shown. answer must be in simplest form. Thanks 1 1 _ X _ 2 2

*asked on August 29, 2010* -
## Math

I need to figure out what a deposit of 3500 a month, with 9 percent intrest compounded monthly, would be in 6 years. Any help would be greatly appreciated.

*asked on January 13, 2010* -
## Physics

I have to plot a graph of Pressure gradient vs average velocity (water in a pipe, I have all the data). I plan to put the average velocity on the x axis, since I could control that better in an experiment. Do you agree/ Thanks. Charlie

*asked on August 10, 2009* -
## Thermodynamics

Would someone explain entropy in simple terms please. Thanks.

*asked on May 3, 2009* -
## Physics

If energy is 1/2 mv^2; and m and v are always positive.... How come the ground state energy of Hydrogen is a minus value? Charlie

*asked on April 14, 2009* -
## physics: relativity

I think I can rearrange the Lorentz contraction equation, solving for v using: v=sqrt[1-(L/Lo)^2] x c^2 Would someone check my thinking please? Thanks

*asked on March 30, 2009* -
## math

In the number 268,743 how many times greater than the 3 is the 6?

*asked on March 27, 2009* -
## math

what is the answer to. Write the next 4 letters in this sequence: A,B,Z,Y,C,D

*asked on March 26, 2009* -
## math

In the number 268,743 how many times greater than the 3 is the 6

*asked on March 26, 2009* -
## math

the response from Ms writeacher did not show the answer

*asked on March 9, 2009* -
## math

what is the value of 4 in 0.045

*asked on March 9, 2009* -
## Sig Figs

In a 9V circuit, all the resistors are 20 or 40 kilo Ohms. Convention says that calcs should therefore be quoted to 1 sig fig, since the volts are the least accuracy. 2 seems better though. Any ideas?

*asked on February 22, 2009* -
## Physics

I need to calculate the closest two parallel plates can get before they spark I have the voltage, and will use E=V/dist (rearranged) to get the distance. I THINK the field strength value I should use is 3x10^-6 Vm^-1. No other info is given in the

*asked on February 7, 2009* -
## Physics SHM

Am self studying SHM, so sorry for the elementary questions. Would someone check/confirm some facts i think I've learned please. 1 If a sine wave graph starts at the origin at time = 0s, the sysyem is in equilibrium? 2 The amplitude at t= 0s is zero. 3

*asked on November 5, 2008* -
## college

what's the most commonly overlooked reason for forgetting?

*asked on September 9, 2008* -
## Physics

A spring of k=11 N/m has a block of mass 4 kg attached to it on a frictionless table. If the block is pulled a distance 0.15 m to the right and released from rest, how long will it take the block to return to its equilibrium position?

*asked on April 28, 2008* -
## Physics

The position of some object moving along the x-axis is observed to be x(t)=9cos(pi*t/3+pi/4) meters. Find the frequency.

*asked on April 28, 2008* -
## business studies

I was wondering could anyone help me with question 6 an page 302 of the Business Studies for households and enterprises Junior Certificate by Matt Hynes

*asked on October 13, 2007* -
## Graphing Functions

Can someone point me to a starting point in graphing f(x)= 25/cos x If it weren't a fraction and a cosine, I'd try to build a table of coordinates. This one, I have no start point. Thanks

*asked on August 2, 2007* -
## One for drwls

Thank you for answering my question. Can you steer me to making a quadratic from 1/4(x+3)^2-4 Then I can get the intercepts. Thanks Just multiply it out to put it in the standard form, ax^2 + b^2 + c (1/4)(x+3)^2-4 = (1/4)(x^2 + 6x + 9) -4 = (1/4)x^2 +

*asked on March 21, 2007*