Monday
May 2, 2016

# Posts by Waleed

Total # Posts: 11

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

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