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3 years ago

14

Which of the following BEST describes cardiovascular fitness?

2 answers:

nikdorinn [45]3 years ago

8 0

Hi! In order for me to help you, I need the answer choices. Thanks! -AmbitiousAndProud

AnnyKZ [126]3 years ago

3 0

Answer:the answer is A.

Explanation:

Just got 100%

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The area of the maxila where the teeth attach is called the ??

fomenos

Answer: The alveolar process of the maxillae holds the upper teeth, and is referred to as the maxillary arch. Each maxilla attaches laterally to the zygomatic bones (cheek bones).

Explanation: wiki

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3 years ago

A battery establishes a voltage V on a parallel-plate capacitor. After the battery is disconnected, the distance between the pla

disa [49]

Answer:

d.

Explanation:

Since, the capacitance( decreases )

therefore voltage between the plates(increases ).

Hence, option d is correct.

C =εA/d.

d is doubled, therefore C decrease ( inverse relation).

4 0

3 years ago

Question 6 options: When a cannon is fired, the projectile moves forward. According to Newton's 3rd law, the cannon will want to

anygoal [31]

Backwards i just took the test

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3 years ago

According to Oxford Dictionaries, a spit take is an act of suddenly spitting out liquid one is drinking in response to something

Tasya [4]

Answer:

The pressure is $p_1 = 4051.4 \ Pa$

Explanation:

From the question we are told that

The gauge pressure at the mouth is $p_1$

The radius of the column is $r_2 = 4 \ mm = 0.004 \ m$

The speed of the liquid outside the body is $v_2 = 3.1 \ m/s$

The area of the column is $A_2$

The area inside the mouth $A_1 = 10 A_2$

Generally according to continuity equation

$v_1 A_1 = v_2 A_2$

=> $v_ 1 = v_2 * \frac{A_2}{A_1}$

=> $v_ 1 = 3.1 * \frac{1}{10}$

=> $v_ 1 = 0.31 \ m/s$

So

$A_1 = 10A_2$

=> $\pi * r_1^2 = 10(\pi * r_2^2)$

=> $r_1 = 10 * r_2$

substituting values

$r_1 = 10 * 0.004$

$r_1 =0.04 \ m$

Now the height of inside the mouth is $h_1 = d = 2r_1 = 2* 0.04 = 0.08\ m$

Now the height of the column is $h_2 = d = 2r_2 = 2* 0.004 = 0.008\ m$

Generally according to Bernoulli's equation

$p_1 = [\frac{1}{2} \rho v_2^2 + h_2 \rho g +p_2] -[\frac{1}{2} \rho * v_1^2 + h_1 \rho g ]$

Now $\rho = 1000 \ kg m^{-3}$ which is the density of water

$p_2$ is the gauge pressure of the atmosphere which is zero

So

$p_1 = [(0.5 * 1000 * (3.1)^2) +(0.008 * 1000 * 9.8) + 0]-$

$[(0.5 * 1000 * 0.31^2) + (0.08*1000 * 9.8)]$

$p_1 = 4051.4 \ Pa$

8 0

3 years ago

What are the four different types of economic resources?

77julia77 [94]

The factors of production are resources that are the building blocks of the economy; they are what people use<span> to </span>produce goods<span> and services. Economists divide the factors of production into four categories: </span>land<span>, </span>labor<span>, </span>capital<span>, and entrepreneurship. hope that helped</span>

8 0

3 years ago