# Posts by Waleed

Total # Posts: 14

**math**

I am a secret number with 4 in the ones place a 6 in the tenths place . Who am I ?

*March 3, 2017*

**Maths**

854

*May 24, 2016*

**university**

Using a wrench 0.4 m long, a force of at least 100 N is needed to turn a nut. (a) How large a torque is required? (b) How large a force is needed to turn the nut using a wrench 0.15 m long?

*March 7, 2013*

**physics**

an object is shot from the ground at an angle of 35 degrees with a speed of 50m/s. what are the x and y components of its velocity initially at the top of its path and just before it hits the ground?

*September 23, 2012*

**physics**

an object is shot from the ground at an angle of 35 degrees with a speed of 50m/s. what are the x and y components of its velocity initially at the top of its path and just before it hits the ground?

*September 23, 2012*

**Math**

During softball practice, a softball pitcher throws a ball whose height can be modeled by the equation h = -16t^2 (<--squared) + 24t + 1, where h=height in feet and t = time in seconds. How long does it take for the ball to reach a height of 6 feet?

*May 9, 2012*

**algebra 2**

answer: (x-8) (x+4) because -8+4=-4 and -8x4=-32

*May 9, 2012*

**College Physics II**

tgvcxde

*January 23, 2011*

**Math**

4.6

*January 10, 2011*

**Chemistry**

What is the volume of a solution of 0.5 M NaOH that must be added to adjust the pH from 4 to 9 in 20 mL of a 100 mM solution of phosphoric acid? Its been about 4 years since I've done this stuff. All I know is the pKa of phosphoric acid is 2.15 and I'm assuming In need...

*September 23, 2010*

**Chemistry**

What is the volume of a solution of 0.5 M NaOH that must be added to adjust the pH from 4 to 9 in 20 mL of a 100 mM solution of phosphoric acid? Its been about 4 years since I've done this stuff. All I know is the pKa of phosphoric acid is 2.15 and I'm assuming In need...

*September 23, 2010*

**Information Science**

i need answer

*June 1, 2010*

**Math**

mathhelpforum . com

*April 30, 2009*

**Chemistry**

Hi, my question is: "Classify each of the following as saturated, supersaturated, or unsaturated: KNO3 90g/100g at 82*C NaCl 36g/100g at 23*C KCl 35g/100g at 18*C NaNO3 90g/100g at 28*C How do I determine if they are saturated, supersaturated, or unsaturated? Since the ...

*June 11, 2006*

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