Atoms consist of protons, neutrons and electrons
Explanation:
There are three particles in an atom:
- Proton: it is located in the nucleus. Its mass is
, and it is positively charged (its electric charge is
, also called fundamental charge) - Neutron: it is also located in the nucleus. Its mass is slightly larger than the proton (
), and it has no electric charge. Protons and neutrons are held together inside the nucleus by the strong nuclear interaction - Electron: it is located outside the nucleus, in a region called "electron cloud". According to quantum mechanics, its exact position cannot be determined, but it can only be described by a "wave function" which gives the probability of finding the electron at a certain position. Its mass is much smaller than the proton (
) and it is negatively charged (its charge is the opposite of that of the proton:
).
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Answer:
Mass
Explanation:
They have masses ranging from about 5 to several tens of solar masses.
The angular speed of the merry-go-round is
ω = 0.10 rad/s
The angular moment of inertia of a mass, m, at a radius, r, from the center of the wheel is
I = mr²
Therefore, the angular moment of inertia for the children are
I₁ = (25 kg)*(1.0 m)² = 25 kg-m²
I₂ = (25 kg)*(1.5 m)² = 56.25 kg-m²
The combined angular momentum is
ω(I₁ + I₂) = (0.10 rad/s)*(25 + 56.25 kg-m²)
= 8.125 (kg-m²)/s
Answer: 8.125 (kg-m²)/s
The equation has one zero, and the system has three solutions ( 1 real and 2 complex solutions).
<h3>
Solution of the polynomial equation</h3>
The solution of the polynomial equation is determined as follows;
3x³ + x = 2x² + 1
3x³ - 2x² + x - 1 = 0

Thus, we can conclude that the equation has one zero (real solution), and the system has three solutions ( 1 real and 2 complex solutions).
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Answer:
The power of 10 in the given value is 5.
Explanation:
scientific notation is expressed in the decimal form. That means always written in the power of 10 form. The decimal place is put after 1 digit.