Answer:
The vector sum of all forces acting on it is zero, its at equilibrium.
Explanation:
The bag of marbles hanging on a spring scale applies its weight downwards, which was counterbalanced by the reaction from the spring scale (obeying the Newton's third law of motion). And since no external forces are applied to the system, thus the equilibrium of the system.
If the weight of the bag is greater than the reaction from the spring scale, the scale breaks and the system would not be balanced.
As they evolved and adapted, those of the fittest survived to reproduce. Those that did not adapt, died.
Answer:
Electromagnetic waves have crests and troughs similar to those of ocean waves. The distance between crests is the wavelength. The shortest wavelengths are just fractions of the size of an atom, while the longest wavelengths scientists currently study can be larger than the diameter of our planet!
Explanation:
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Yes energy makes things move
The correct answer is
<span>A. Liquid water could exist there.
In fact, liquid water is fundamental for life. So, one of the conditions to define the habitable zone around a star is that the temperature allows the presence of liquid water.</span>