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3 years ago

Which of these conditions is a respiratory disease caused by nicotine and tobacco use?

Advanced Placement (AP)

2 answers:

g100num [7]3 years ago

8 0

Answer:

chronic obstructive pulmonary disease (COPD)

Which symptom is a short-term effect of tobacco use? The person has bad breath, shortness of breath, reduced energy, coughing, and more mucus. Risk of lung cancer, emphysema, and other lung diseases increases

Explanation:

Gala2k [10]3 years ago

7 0

Answer:

COPD

Explanation:

leukemia is a type of cancer

type 2 diabetes is caused by too much sugar (i think)

COPD is acused by smoking,and well people smoke nicotine and tabacco

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An aircraft is climbing at a 30 degree angle to the horizontal. How fast is the aircraft gaining altitude if it's speed is 500 m

denis-greek [22]

Answer:

The aircraft is gaining altitude at $250\frac{mi}{h}$

Explanation:

Draw a vector diagram. (Right angle triangle speed as the hypotenuse)

Let

x -----> horizontal component of the speed

y ----> vertical component of the speed

s ----> speed in miles per hour

we know that

$x=cos(30\°)(s)$

$y=sin(30\°)(s)$

we have

$s=500\ \frac{mi}{h}$

$cos(30\°)=\frac{\sqrt{3}}{2}$

$sin(30\°)=\frac{1}{2}$

substitute

$x=\frac{\sqrt{3}}{2}(500)$

$x=250\sqrt{3}\frac{mi}{h}$

$y=\frac{1}{2}(500)$

$y=250\frac{mi}{h}$

therefore

The aircraft is gaining altitude at $250\frac{mi}{h}$

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3 years ago

Jeff's grandmother lives in Florida and wants to stay connected with her family in Michigan. What is a tool she can use to BEST

Mama L [17]

Answer:

Okay ....................

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3 years ago

Read 2 more answers

One pound of bituminous coal contains 14,000 BTUs of energy. Suppose a coal-fired power plant needs 3,500 BTUs of heat to produc

Rainbow [258]

Answer:

$\boxed{\text{4 oz}}$

Explanation:

1. Energy needed

$\text{Energy} = \text{1 kWh} \times \dfrac{\text{3500 BTU}}{\text{1 kWh}} = \text{3500 BTU}$

2. Mass of coal needed

$\text{Mass of coal} = \text{3500 BTU} \times \dfrac{\text{1 lb coal}}{\text{14 000 BTU}} = \text{0.25 lb coal} = \textbf{4 oz coal}\\\\\text{It takes $\boxed{\textbf{4 oz of coal}}$ to produce 1 kWh of electricity}$

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3 years ago

When point ADEF was dilated point D (15,3) became Point D' (5,1) Wht is the scale factor used in dilation?

lara [203]

The scale factor is 1/3

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4 years ago

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