In a competition, an athlete threw a flying disk 143 meters through the air. While in flight, the disk traveled at an average speed of 13.0 m/s. How long did the disk
remain in the air?

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

here are some of the ways in which chemical and nuclear reactions differ.

explanation: