bottom
I don't think top refers to the little leafy bits highest above the ground, but to the part of the tree above ground vs. the part below ground. Otherwise it's a question not even worth asking since the answer is obvious. Any opinions [question mark]
I can end with ? or "there's something wrong with my answer".
yes, a way to find out if it weighs more, which has a greater density
A cubic foot of water contains just under 7.5 gallons of water.
Steel has a Specific Gravity of 7.83. This means that a cubic foot of steel weighs 7.83 times more than a cubic foot of water (which weighs 62.4 pounds)
This is a trick question, right? Regardless of the substance , if they weigh the same, they have the same weight. What is different is the density of sbustances. For instance a cubic foot of Helium weighs less than a cubic foot of carbon dioxide. A cubic foot of iron weighs more than a cubic foot of aluminum. If you visit the web site http://www.chemicalelements.com you can look up the density of many substances that are called elements.
It depends how small it is crushed and how tightly it's packed. The smaller it's crushed and more tightly it's packed, the heavier it is as there is more ice and less space between the pieces of ice. In the most finely crushed and firmly packed volumes of the frozen stuff, the cubic foot of crushed ice will approach being a solid block. A cubic foot of water weighs about 62.4 pounds. A solid block of ice of the same volume weighs about 57.5 pounds. A cubic foot of "normal" crushed ice might weigh 35 to 45 pound range. And it could weigh more or less.
Copper has a higher density then silver. So a cubic inch of copper weighs more then a cubic inch of silver.
(25 cubic feet) - (20.7 cubic feet) = 4.3 cubic feet
A1. Being 2.54x2.54x2.54 cm3 it must weigh 2.54x2.54x2.54 grams.A2. And as you know, a gallon of water weighs 10 lbs, and there are 6.25 gallons of water in a cubic foot. And a cubic foot contains 12^3 cubic inches = 1728 cu in.So we have more than enough data, so a cubic inch is 1/1728 of a cubic foot, and a cubic foot weighs 62.5 lbs. So just divide 62.5 by 1728, and there is your answer.Unless of course, you don't use an imperial gallon, in which case you'll appreciate the increasingly broad acceptance of SI units. And accept A1 above.
Lithium is a bit more than half as dense as water. Its relative density -- or, if you prefer, specific gravity -- is 0.53. So, if you know how much a cubic foot of water weighs, multiply that value by 0.53. BTW, one gallon of water (at 4 degrees C) weighs 8.34 pounds, and one cubic foot of water contains 7.48 gallons. (I know that because WikiAnswers told me.) Now you've got all the info you need to make the calculation.
You can't-lb per cubic foot is a measurement of pressure, tonnes is measure of weight. You could convert Ib per cubic foot to tonnes per cubic foot or more usually, gram per cubic centimetre but not lb per cubic foot to tonnes
they are equal
There are lots of variables. Is it sandy, loamy, clay or mixture? Is it saturated with water or very dry? There is a very wide range, but I would expect it to weigh about 4-5 pounds a cubic foot, with a variability of several pounds either way. I think the weight-per-cubic-foot estimate above is low. Generally, a yard of topsoil is about one ton. Note that "a yard" in this case really means a cubic yard, which is 27 cubic feet. So, a cubic foot of topsoil is about 74 pounds, which seems to make sense inasmuch as a cubic foot of pure water is about 62 pounds. Depending on dirt of course but, approximately 75% of it's volume. Aggregates rule of thumb, the smaller the pieces the lighter the load per volume 1 yard of black dirt=+/- 1500lbs 1 yard of 8" boulders =+/- 3500lbs. boulders or compressed mass.