A submerged forest is the in situ remains of trees (especially tree stumps) that lie submerged beneath a bay, sea, ocean, lake, or other body of water. These remains have usually been buried in mud, peat or sand for several thousand years before being uncovered by sea level change and erosion and have been preserved in the compacted sediment by the exclusion of oxygen. A forest can become submerged as the result of a lake or sea level rise that results in a lacustrine or marine transgression and in-place drowning of the forest. A submerged forest that lies beneath a lake can also be formed by the blockage of a river valley by either a landslide or manmade dam.
1. A ball of mass mass b and volume V is lowered on a string into a fluid of density Pf. Assume that the object would sink to the bottom if it were not supported by the string. What is the tension in the string when the ball is fully submerged but not touching the bottom. Solve using...
I'm not sure if this is the place to post this thread but how is it that an electric filament in an electric kettle or water heater doesn't short in the water? What makes it safer then a hair blower falling in a bath tub?
Technically, this isn’t really a home work problem, per se, but let’s try to solve it anyway, shall we.
We have a cylinder which at one end is closed off and at the other it is open. This cylinder has a total height H cm and diameter D cm (the real numbers aren’t all that important)...
I have a multiple choice question where a rock weighs 1400 N in air and 900 N apparent weight in fresh water with 998 kg/m^3 density (i think), The question is what is the volume of the rock. 2 of the choices are .14 m^3 and .051 m^3. I have tried
p = m / v and 1400 - 500 and division by g's...
When I go swimming (or rather walk in the water; I can't swim but I can pretend :redface: ), I like to try to swim under water and when I try, I can't. Why? Because I only stay under for a few seconds and float right back up again. I took a swimming class once, and the teacher couldn't figure...