No, speed is not a vector. it is scalar.
because it doesn't need direction but need magnitude.
It’s the crest, the crest is the top part of the wave and the trough is the bottom so they correspond
Inertia is proportional to mass. It is a measure of the resistance to changes in velocity. Inertia is a property of mass and cannot change. Momentum changes as an object changes its velocity. Good luck on your assignment and have a great day! :D
<span>Matter is considered by modern scientists to be anything in the universe that takes up mass. It can be in any state including solid, liquid, or gas. It can also hold potential and or kinetic energy.</span>
