When an object move with a constant velocity
and there are forces acting on it, this is called unbalanced force. The forces
acting on an object is a net force, which is capable of changing speed and/or
direction of motion of an object. However,
the two forces acting on the object can be added together to give the resultant force, which is a
single force that has the same effect on the object as all the individual
forces acting together.
Answer:
4N
Explanation:
a = (7-3)/5 = 0.8m/s^2
F = ma = (5)(0.8) = 4 Newtons
Answer: B
D makes no sense because energy is created so we can remove that. C also makes no sense because if energy is not created how did it get destroyed if there's no energy in the first place. This leaves us with a and B the correct answer is B because energy is created and cannot be destroyed.
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Answer: 8
Explanation:
Non metals which have 4 electrons in the outer shell i.e in the valence shell bond with the other similar non metals having 4 electrons in their valence shell. This bond is known as covalent bond in which the two atoms share their valence electrons with each other in order to complete their valence shell. These atoms seeks to have 8 electrons in order to attain noble gas configuration.
