The exosphere is also the region where some satellites orbit, particularly those designed for long-term observations of Earth or communications. The low density of particles in this layer means that there is minimal drag on these satellites, allowing them to maintain their orbits for extended period...
What is the density of the Earth's mantle?Earth's Structure.The inner core, the outer core, the mantle, and the crust create the inner layer structures of the earth from deepest to shallowest. Each layer has particular chemical and physical compositions....
<p>To find the percentage decrease in the weight of a body when taken to a depth of 32 km below the surface of the Earth, we can follow these steps:</p><p><strong>Step 1: Understand the relationship between weight and gravity</strong> The weight of a bod
What is the average density of the earth? M = 5.97 x 1024 kg , R = 6370 km Average density of earth: If the mass of a object is M and volume of that object is Vthen the density of the object is ρ=MV. To solve the given problem we will find the volume of...
Auroras tell us many things about Earth's upper atmosphere, including its density, composition, flow speeds, and the strength of electrical currents flowing in the upper atmosphere. These in turn tell us about the Earth's magnetic field, how it extends into space, and how it changes dynamicall...
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So which is it? NASA's Wilkinson Microwave Anisotropy Probe (WMAP) and the European Space Agency's Planck mission have measured the matter-energy density of the universe, and both have found omega to be equal to the critical density. In other words, the universe seems to have a flat geome...
Chromium –If you define a metal's strength simply on the basis of how hard it is, then chromium, which scores 9.0 on the Mohs scale, would top your list. By itself, it isn't as strong as other metals in terms of yield and tensile strength, but it is often added to alloys to ma...
All it needs is some good marketing. One selling point might be that most if not all mined iridium ultimately comes from meteorites, which contain 300-1500 times as much iridium as the earth’s native crust. OK, that’s iridium. Now here’s the weird deal on osmium. A series of web...