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Anvisha [2.4K]
3 years ago
10

1. Balanced forces acting on an

Physics
2 answers:
zzz [600]3 years ago
8 0

Answer: 1. A

2. B

Explanation:

1. As long as The force is equally distributed the object will not move .

2. If the force in one side is greater than that of the other the object will move

SVETLANKA909090 [29]3 years ago
3 0

Answer:

1. A

2. B

Explanation:

1. As long as The force is equally distributed the object will not move .

2. If the force in one side is greater than that of the other the object will move

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Answer:

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What is the term for the overall change in position?
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Atomic physicists usually ignore the effect of gravity within an atom. To see why, we may calculate and compare the magnitude of
STatiana [176]

Answer:

2.27\cdot 10^{49}

Explanation:

The gravitational force between the proton and the electron is given by

F_G=G\frac{m_p m_e}{r^2}

where

G is the gravitational constant

m_p is the proton mass

m_e is the electron mass

r = 3 m is the distance between the proton and the electron

Substituting numbers into the equation,

F_G=(6.67259\cdot 10^{-11} m^3 kg s^{-2})\frac{(1.67262\cdot 10^{-27}kg) (9.10939\cdot 10^{-31}kg)}{(3 m)^2}=1.13\cdot 10^{-68}N

The electrical force between the proton and the electron is given by

F_E=k\frac{q_p q_e}{r^2}

where

k is the Coulomb constant

q_p = q_e = q is the elementary charge (charge of the proton and of the electron)

r = 3 m is the distance between the proton and the electron

Substituting numbers into the equation,

F_E=(8.98755\cdot 10^9 Nm^2 C^{-2})\frac{(1.602\cdot 10^{-19}C)^2}{(3 m)^2}=2.56\cdot 10^{-19}N

So, the ratio of the electrical force to the gravitational force is

\frac{F_E}{F_G}=\frac{2.56\cdot 10^{-19} N}{1.13\cdot 10^{-68}N}=2.27\cdot 10^{49}

So, we see that the electrical force is much larger than the gravitational force.

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A ball is dropped from the ceiling and free falls to the floor. Which one of the
Alex73 [517]

Answer:

A

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Gravity

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