What is the weight of wood?

What is the weight of wood? The most commonly referenced “heaviest wood”, lignum vitae (Guaiacum officinale), has a specific gravity of 1.05 when green, which makes its weight about 1365 kg/m3, or 85 pounds per green cubic foot….Hardwoods. Common Name Hickory, Mockernut Weight of one cubic foot, in pounds 45 64 63 66 What does […]

What are the 3 types of inclined planes?

What are the 3 types of inclined planes? Inclined Planes Examples Wheelchair ramps. Slides. Stairs. Waterslides. What is the formula of inclined plane? It can be divided into two components: Fi = Fg * sinθ – parallel to inclined plane. Fn = Fg * cosθ – perpendicular one. What does inclined mean? 1 : having […]

Why should we solve for a variable?

Why should we solve for a variable? you define it, and it lets you know how to properly write the equation. If you want to solve for the unknowns using mathematical equations it is necessary to define the unknown variables i.e. what they represent in the real world so that the known relationships can be […]

Why is acceleration not 0 when velocity is zero?

Why is acceleration not 0 when velocity is zero? For the most part velocity is not zero if an object is accelerating. Since acceleration is the change in velocity over time, there has to be a change in velocity for something to accelerate. If the velocity is constant however, the acceleration is zero (because the […]

What are the 14 parts of a plant cell?

What are the 14 parts of a plant cell? Plant Cell Structure Cell Wall. It is a rigid layer which is composed of cellulose, glycoproteins, lignin, pectin and hemicellulose. Cell membrane. It is the semi-permeable membrane that is present within the cell wall. Nucleus. Plastids. Central Vacuole. Golgi Apparatus. Ribosomes. Mitochondria. What are the major […]

Is ice water pure or impure?

Is ice water pure or impure? Compounds and elements are pure substances. So, ice is just frozen water. Thus it is a pure substance in the particular phase in which the motion of the individual molecules of water has been minimized, and only vibrations in fixed positions remain. Is stainless steel a pure substance? Homogeneous: […]

What is a mass of nucleus?

What is a mass of nucleus? By definition, the mass of the carbon-12 nucleus is 12u, where u is the atomic mass unit (amu), equal to 1.66 x 10^-27 kg. The mass of an isolated proton has been measured to be 1.0073u and that of a neutron is 1.0087u (about 0.14% larger). What limits the […]

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