When water freezes, it's volume INcreases, which naturally results in a DEcrease in it's density. That's why cubes and bergs float.
I'm pretty sure that water is the only known substance that behaves this way. Which is lucky for us, because if it didn't, then life on Earth would be impossible. Oceans and lakes would freeze from the bottom up. Once! And then they would never thaw, because the sun could never cut through the layer of warm water on top, to melt the ice below.
Answer:
the chemical reaction will be fire and smoke
Answer:
For the force due to electromagnetism we use Coulomb’s inverse square law:
F=keq1q2r2
(where F is the electrostatic force, q1 & q2 are the two charges, r is the distance between them, and Coulomb’s Constant ke=14πϵ0=8.99×109Nm2C−2, where ϵ0 is the permittivity of free space)
r=keq1q2F−−−−−√
r=8.99×109Nm2C−2−1.60×10−19C×−1.60×10−19C1.0N−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−√
r=1.52×10−14m
Explanation:
The correct answer for the question that is being presented above is this one: "c. elastic." Most earthquakes are produced by the rapid release of
<span>elastic energy stored in rocks s</span>ubjected to great forces. The greater the elasticity of the energy, the more it is subjected to great forces.
Power = voltage x current. Voltage = Power/current = 100/0.8 = 125volts.