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3 years ago

10

As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric

charge the atom.
A.) needs more neutrons to gain enough nuclear binding forces to overcome
the repulsion.

B.) needs fewer neutrons to gain enough nuclear binding forces to overcome
the repulsion.

C.)needs more electrons to gain enough nuclear binding forces to overcome
the repulsion.

D.)needs fewer electrons to gain enough nuclear binding forces to overcome
the repulsion.

1 answer:

Nady [450]3 years ago

5 0

Answer:

b

Explanation:

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<h3>Minimum force to be applied </h3>

The minimum force F he must exert to get the block moving is calculated as follows;

Fcosθ = μ(s)Fₙ

Fcosθ = μ(s)mg

where;

μ(s) is coefficient of static friction
m is mass of the block
g is acceleration due to gravity

F = [0.1(36)(9.8)] / [(cos(25)]

F = 38.9 N

<h3>Acceleration of the block</h3>

F(net) = 38.9 - (0.03 x 36 x 9.8) = 28.32

a = F(net)/m

a = 28.32/36

a = 0.79 m/s²

Thus, the minimum force F he must exert to get the block moving is 38.9 N.

The acceleration of the block is 0.79 m/s².

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2 years ago

The alarm at a fire station rings and a 87.5-kg fireman, starting from rest, slides down a pole to the floor below (a distance o

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Answer:

$F_f=840N$

Explanation:

From the question we are told that

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Generally the equation for velocity is mathematically represented as

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Therefore Acceleration a

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Generally the equation for Frictional force $F_f$ is mathematically given as

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3 years ago

Awnser these pls they r for middle schoolers lol

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Answer:

Find the set of value of x Find the set of value of x which satisfy the inequality 2r2- 5x 2 18which satisfy the inequality 2r2- Find the set of value of x which satisfy the inequality 2r2- 5x 2 185x 2 18

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3 years ago

(a) Two ions with masses of 4.39×10^−27 kg move out of the slit of a mass spectrometer and into a region where the magnetic fiel

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Answer:

Part a)

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Part b)

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Part c)

The distance between the two particles are half of the loop will be given as

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3 years ago