Saturday

April 19, 2014

April 19, 2014

Posted by **Amy** on Wednesday, November 7, 2012 at 11:39pm.

(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 25.6 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa.

352180 Pa

(b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 33.1 cm?

diameter=33.1cm

r=1/2 diameter

area=pi*r^2

area=pi(16.55)^2

area=860.49

Force=Ptotalx area

Force=303047368.2

- PHYSICS (CHECK WORK) -
**drwls**, Thursday, November 8, 2012 at 3:30amSince your pressure is in Pascals, the window area must be in square meters (not square cm) to get the force in Newtons.

- PHYSICS (CHECK WORK) -
**Amy**, Thursday, November 8, 2012 at 10:15amThank you!

**Related Questions**

FRENCH WORK ASAP - please please someone check my work I don't understand it ...

Physics - Check my work please :) - Check this please :D Which of the following ...

english - I posted my work a few minutes ago, can somebody check it for me ...

language art CHECK - Will somebody please check this for me and see if i used ...

Physics check - I just want somebody to check my answer on this problem please...

math - the key...^=exponent QUESTION: What is 2^3-6x3^2 Can anyone help me ...

Physics - please check these: In which of the following sentences is WORK used ...

PLease Check My Work - 3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+...

Math[PLease Check] - Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2...

PHYSICS CHECK WORK PLEASE - I am getting the wrong answer. Can you please check...