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3 years ago

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Only two electrons, with opposing spins, are allowed in each orbital is known as the

1 answer:

Sophie [7]3 years ago

3 0

Answer:

Only two electrons, with opposing spins, are allowed in each orbital is known as the Aufbau's principle.

Explanation:

Aufbau's principle states that at the ground state of atom the atomic orbits of lowest energy are first filled by the electrons followed by the atomic orbits of higher energy.

Example:

1s orbit is first filled by the electrons in the opposite spin followed by 2s. Thus, first 1s is filled with 2 electrons in the opposite spin before filling the 2s orbit.

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To develop muscle tone, a woman lifts a 2.50 kg weight held in her hand. She uses her biceps muscle to flex the lower arm throug

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To solve this problem we will use the concepts related to Torque as a function of the Force in proportion to the radius to which it is applied. In turn, we will use the concepts of energy expressed as Work, and which is described as the Torque's rate of change in proportion to angular displacement:

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Where,

F = Force

r = Radius

Replacing we have that,

$\tau = Fr$

$\tau = 21cm (\frac{1m}{100cm})* 550N$

$\tau = 11.55Nm$

The moment of inertia is given by 2.5kg of the weight in hand by the distance squared to the joint of the body of 24 cm, therefore

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Finally, angular acceleration is a result of the expression of torque by inertia, therefore

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$\alpha = \frac{11.55}{0.394}$

$\alpha = 29.3 rad/s^2$

PART B)

The work done is equivalent to the torque applied by the distance traveled by 60 °° in radians $(\pi / 3)$ , therefore

$W = \tau \theta$

$W = 11.5* \frac{\pi}{3}$

$W = 12.09J$

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Does gravity increase or decrease with greater distance?

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A boy pushes forward a cart of groceries with a total mass of 40.0 kg. What is the acceleration of the cart if the net force on

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Materials that are soft and porous will absorb energy causing a decrease in amplitude and energy of the sound. This is called __

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10. A book has a mass of 400 g. The surface of the book in contact with a table has dimensions 0.10m x 0.20 m. The gravitational

morpeh [17]

The pressure exerted on the table due to the book is 200 N/m².

The given parameters;

<em>mass of the book, m = 400 g = 0.4 kg</em>
<em>dimension of the table, = 0.10m x 0.20 m.</em>
<em>gravitational field strength g = 10 N/kg.</em>

The area of the table is calculated as follows;

A = 0.1 x 0.2 = 0.02 m²

The pressure exerted on the table due to the book is calculated as follows;

$P = \frac{F}{A}$

where;

<em>F is the force of the book due to its weight</em>

<em />

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Thus, the pressure exerted on the table due to the book is 200 N/m².

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3 years ago