one cube has sides x m and another cube has sides 2x m. the small cube exerts a pressue p=w/a, where a is the area of one face. what is the pressure exerted by the larger cube standing on one of its face?
(A) 2p
(B) 4p
(C) 8p
(D) 16p
2006-10-10 04:45:49 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Assuming the density of the cubes is the same, the larger cube is 8x the volume, thus 8x the weight.
One face has 4x the surface area, so the pressure would be
8/4 * the original pressure. That's 2p
Answer is 'A'
2006-10-10 04:54:15 · answer #1 · answered by Iridium190 5 · 0⤊ 0⤋
Do your homework buddy! oh and yes dont believe the person who answered on top.. They just want two points just like me.
2006-10-10 11:55:40 · answer #2 · answered by Tazzzy 1 · 1⤊ 0⤋
it will be 1/(4p)
2006-10-10 11:52:29 · answer #3 · answered by raj 7 · 0⤊ 1⤋