The smallest unit that makes up matter is atom. The correct option is A.
The atom is the smallest component of matter. The fundamental units of matter, or atoms, cannot be further divided without losing their essentialcharacteristics.
They have an orbitally arranged nucleus of protons and neutrons that surrounds them. Molecules, which are collections of atoms bound together, are created when various atom kinds are combined.
On the other hand, cells, which are made up of different molecules, are the fundamental structural and functional units of living things.
Protons are subatomicparticles that can be found in the atom's nucleus, however they are not the tiniest piece of matter.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
What is the smallest unit that makes up matter?
A. Atom
B. Molecule
C. Cell
D. Proton
ATOM makes up the smallest matter
Answer: The diameter of the circular path is 2.96m
Explanation: centripetal acceleration = tangential speed^2 / radius of the circular path.
Centripetal acceleration = 2.7m/s^2
Tangential speed = 2.0m/s
Radius = 2.0^2 / 2.7 = 4/2.7
= 1.48m
Diameter = radius*2
= 1.48*2 = 2.96m.
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what does v1 and v2 represent
B. The mass of the balloon increases because the temperature of the balloon has increased.
C. The mass of the balloon stays the same because the gas inside the balloon still has same mass after it warms up.
D. The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.
Please explain why you chose your answer
Answer:
E.) None of the above
Explanation:
Draw a free body diagram. There are two forces acting on the car. Normal force perpendicular to the road, and weight downward.
Sum of the forces perpendicular to the road:
∑F = ma
N − mg cos θ = 0
N = mg cos θ
Sum of the forces towards the center of the circle:
∑F = ma
N sin θ = mv²/r
mg cos θ sin θ = mv²/r
g cos θ sin θ = v²/r
v = √(gr cos θ sin θ)
Given r = 50 m and θ = 5°:
v = √(9.8 m/s² × 50 m × cos 5° × sin 5°)
v = 6.52 m/s
v = 14.6 mph