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2 years ago

An ninh hàng không được xem là yếu tố sống còn của ngành hàng không trong mối liên

SAT

1 answer:

AlladinOne [14]2 years ago

8 0

Explanation:

Theo Anh (Chị), tại sao nói An ninh hàng không

được xem là yếu tố sống còn ? Đảm bảo an ninh hàng không là gì ?

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A book has a mass of 400g the surface of the book in contact

Brut [27]

Answer:

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

Explanation:

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

The given parameters;

mass of the book, m = 400 g = 0.4 kg

dimension of the table, = 0.10m x 0.20 m.

gravitational field strength g = 10 N/kg.

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; where;

F is the force of the book due to its weight

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

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1 year ago

What cause and effect relationships have to do with women in forensic science?

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2 years ago

Musculoskeletal shadow health tina jones quizlet

Nesterboy [21]

Musculoskeletal Health can be efficiently maintained by proper nutrition and regular physical exercise programs.

<h3>What does musculoskeletal health mean?</h3>

The expression 'musculoskeletal health' makes reference to the activities aimed at preserving the health of the muscles and skeletal system.

The muscles that are attached to the skeletal system are called skeletal muscles, and they can be maintained by proper nutrition (consuming proteins) and physical exercise.

Moreover, the bones of the skeletal system need calcium to maintain their strength and rigid structure.

In conclusion, musculoskeletal health can be efficiently maintained by proper nutrition and regular physical exercise programs.

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2 years ago

Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes ca

antoniya [11.8K]

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

$T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t}$ (1)

Where:

$T_{s}$ - Final temperature, in degrees Celsius.
$T_{o}$ - Initial temperature, in degrees Celsius.
$t$ - Time, in minutes.
$k$ - Cooling rate, in $\frac{1}{min}$ .
$T(t)$ - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when $T(t) = T_{s}$ , that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that $T_{o} = 80\,^{\circ}C$ , $t = 15\,min$ , $T_{s} = 50\,^{\circ}C$ and $T(15) = 60\,^{\circ}C$ , then the cooling rate of the substance is: