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2 years ago

How do the circulatory system and the respiratory system work together?

Physics

2 answers:

Softa [21]2 years ago

8 0

Answer:

The circulatory system tends to pump blood around the whole body, while the respiratory system tend to facilitate the exchange of gas in the body so then the blood will look totally fresh. In simpler terms, the heart is connected to the lungs through the means of arteries and veins.

Explanation:

mezya [45]2 years ago

5 0

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Which trends is indirectly proportional to effective nuclear charge

Minchanka [31]

Answer:

Atomic size

Explanation:

In the periodic table , atomic size is indirectly proportional to the effective nuclear charge .the atomic size reduces from left to right across the table. This is because electrons are added to the same shell.

4 0

3 years ago

An electromagnetic wave has a frequency of 6.0 x 10^18 Hz. What is the wavelength of the wave?

Vikki [24]

Answer:

500 nm

Explanation:

$\lambda = c/\nu = \frac{3*10^8}{6*10^{18}} = 5*10^{-11}$ m

8 0

3 years ago

A bullet has a mass of 8 grams and a muzzle velocity of 340m/sec. A baseball has a mass of 0.2kg and is thrown by the pitcher at

Thepotemich [5.8K]

Answer:

Momentum of bullet

$P = 2.72 kg m/s$

momentum of baseball

$P = 8 kg m/s$

Explanation:

As we know that momentum is defined as the product of mass and velocity

here we know that

mass of the bullet = 8 gram

velocity of bullet = 340 m/s

momentum of the bullet is given as

$P = mv$

$P = (\frac{8}{1000})(340)$

$P = 2.72 kg m/s$

Now we have

mass of baseball = 0.2 kg

velocity of baseball = 40 m/s[/tex]

momentum of baseball is given as

$P = (0.2)(40)$

$P = 8 kg m/s$

3 0

3 years ago

Density is a chemical property of matter.<br> TRUE<br> FALSE

kakasveta [241]

Answer:

False

Explanation:

Density is a physical property of matter.

5 0

3 years ago

Read 2 more answers

A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how h

Aloiza [94]

$v_x=16,9\frac{m}{s}\\
s=44m\\
g=10\frac{m}{s^2}\\\\
v_x=\frac{s}{t}\Rightarrow t=\frac{s}{v_x}\\\\
t=\frac{44}{16,9}\\\\
t=2,6s\\\\
h=\frac{gt^2}{2}\\\\
h=\frac{10*2,6^2}{2}\\\\
h=5*6,76\\\\
h=33,8m$

6 0

3 years ago