The answer is B.) hope this helps
Answer:
2 m/s and -2 m/s
Explanation:
The object travels with an angle of
60.0°
with the positive direction of the y-axis: this means that it lies either in the 1st quadrant (positive x) or in the 2nd quadrant (negative x).
If it lies in the 1st quadrant, the value of vx (component of v along x direction) is:

If it lies in the 2nd quadrant, the value of vx (component of v along x direction) is:

The environmental factor that the pyramid of energy
incorporates that prevents it from inverting is population size.
Population size<span> <span>is the actual number of individuals in a </span>population. Populationdensity is a measurement of population size<span> per unit area, i.e., </span>population sizedivided by total land area. Abundance refers to the relative
representation of a species in a particular ecosystem.</span>
I am hoping that this answer has
satisfied your query and it will be able to help you in your endeavor, and if
you would like, feel free to ask another question.
Answer:
Sorry @Josh2013, the answer is B. heart beating.
Explanation:
The reason for this answer is heart beating is an involuntary action, it happens on it's own. Eating, sleeping, and crying are all voluntary actions. And a behavior is an action you do voluntarily.