Question

Can anyone teach me how to calculate this?

What is the pressure if a force of 200 N is applied over an area of
50 cm2?
a. 4 N/cm2.
b. 0.24 N/cm2.
c. 10,000 N/cm2.
d. 150 N/cm2.

Answer 1

@aaronq @mossyfish im sorry to ask for your help again.. but you guys are the best >.<

Answer 2

So, we need to split 200N over 50cm^2, right? Go ahead and divide 200 by 50 :)

Answer 3

that would be 4

Answer 4

I think so :) I've never encountered a problem like this, but I imagine that that is how it is solved... @aaronq , am I right?

Answer 5

This is right, i like how youre reasoning it out.

the formula you wanna remember for pressure is: \(Pressure=\dfrac{Force}{Area}\)

Answer 6

thanks! is it alright if i ask a few more questions? :)

Answer 7

Go ahead, we'll help you as much as we can xD

Answer 8

thanks guys XD

Answer 9

Due to the force of _____, the pressure of a fluid increases as depth
increases.

I thought the answer might be weight?

Answer 10

gravity maybe??

Answer 11

i thought of that too. worth a shot :D

ok next one

_____ is the mass of a substance divided by its volume.

Answer 12

\(density=\dfrac{mass}{volume}\)

Answer 13

thank you :)

Answer 14

A device called a (an) _____ is a simple tube or hose that operates
by creating a difference in pressure.

this was under the subject of hydraulic devices. I dont see a particular device mentioned other than a piston though....

Answer 15

Siphon?

Answer 16

i will try it

Answer 17

it's not even in the book.. i doubt it XD

Answer 18

Hmm...your school sounds difficult :(

Answer 19

yeah it is... pearblossom. my mom is so mad at the school. im switching as soon as i finish my final tests :(