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2 years ago

Causes damage to the alveoli and increases the production of mucus in the mouth, throat, and lungs.

Physics

2 answers:

Hatshy [7]2 years ago

4 0

I believe the answer is tar.

lord [1]2 years ago

4 0

Answer:

The correct answer is Tar.

Explanation:

Tar is the most toxic substance in tobacco smoke and is responsible for most of the diseases caused by smoking. This substance present in tobacco produces an irritating action on the respiratory tract.

This irritation leads to an increased production of

and a difficulty in eliminating it.

The secretion obstructs the airways, making it difficult for air to pass through. This results in chronic obstruction of the lung with rupture of the pulmonary alveoli.

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An astronaut lands on a new, recently discovered planet in a different star system. The astronaut measures the acceleration due

Nezavi [6.7K]

Answer:

The radius of the new planet is ~2.04 * 10⁶ m, or 2,041,752 m.

Explanation:

We can use Newton's Law of Universal Gravitation:

$\displaystyle F_g=G\frac{Mm}{r^2}$

Let's look at Newton's 2nd Law:

$F=ma$

We can set these equations equal to each other:

$\displaystyle G\frac{Mm}{r^2} =ma$

The mass of the second mass (astronaut) cancels out. We are left with:

$\displaystyle G\frac{M}{r^2} =a$

We are solving for the radius of the new planet, so we can rearrange the equation:

$\displaystyle r=\sqrt{\frac{GM}{a} }$

Substitute in our known values given in the problem (G = 6.67 * 10⁻¹¹ ; M = 7.5 * 10²³ ; a = 12).

$\displaystyle r =\sqrt{\frac{(6.67\times 10^{-11})(7.5 \times 10^{23}}{12} }$
$r=2.04 \times 10^6$

The radius of the new planet is ~2.04 * 10⁶ m.

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2 years ago

Which statement best describes how the period and frequency of electromagnetic waves change between gamma rays and microwaves?

Dimas [21]

On an electromagnetic spectrum, one of its noticeable trends is that the wavelength increases with decreasing energy and the wavelength decrease with increasing energy. Furthermore, gamma rays have high energy and short wavelengths while microwaves have low energy and long wavelengths.

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3 years ago

Read 2 more answers

Balance the equation

mote1985 [20]

Is this a chemistry question ?

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2 years ago

A plane traveled south for 2.5 hrs at a velocity of 1200km/hr. What distance did it travel?

Oxana [17]

From the formula, V=displacement/time
displacement/distance =velocity*time
distance=1200*2.5
distance=3*10³km

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