Ask question

Ask question

All categories

4 years ago

12

Describe all the characteristics of Earth that make it ideal for living creatures.

2 answers:

Lady_Fox [76]4 years ago

8 0

Earths atmosphere, Temperature, Plant life and Oxygen I guess

Effectus [21]4 years ago

7 0

Earth's atmosphere, Temperature, Plant life, Oxygen, It's shielded from radiation, and it has lots of water.

You might be interested in

How does wavelength change as frequency increases? A) Wavelength increases as frequency increases. B) Wavelength decreases as fr

ValentinkaMS [17]

Wavelength decreases as frequency increases

8 0

3 years ago

Read 2 more answers

What is the weight of an object if the mass is 78 and the gravity is 9.5

zmey [24]

The answer should be 741 N.

W=m*g
9.5*78 is 741

8 0

2 years ago

A large insulating sheet has a surface charge density σ. what is the electric field strength near the insulating sheet?

MakcuM [25]

Free insulative sheets and insulative sheets backed by a grounded conductor are the only cases in which it is possible to extract reliable information from a noncontacting measurement of the charged state of an insulator. In both cases, the electric field from the charge is the deciding factor.<span>

</span>

3 0

3 years ago

Do you think the inner planets should be explored or should the money be spent on other things? Justify your opinion.

frosja888 [35]

Answer:

yes i think that inner planets should be explored because if we ever find new life or are able to live there then i think its worth takeing a risk.

Explanation:

4 0

3 years ago

In very cold weather, a significant mechanism for heat loss by the human body is energy expended in warming the air taken into t

Pie

Answer:

A) $Q_a=74256\ J$

B) $Q=93562560\ J$

Explanation:

Given:

temperature of air, $T_a=-19+273=254\ K$

temperature of lungs, $T_l=37+273=310\ K$

specific Heat exchanged from the lungs , $c_l=0.47\ J.kg^{-1}.K^{-1}$

specific heat of air, $c_a=1020\ J.kg^{-1}.K^{-1}$

mass of 1 L air, $m'=1.3\ kg$

breath rate, $b=21\ breath.min^{-1}$

A)

Now,

amount of heat needed to warm the air of lungs to the body temperature:

$Q_a=m'.c_a.\Delta T$

$Q_a=1.3\times1020\times (310-254)$

$Q_a=74256\ J$

B)

Amount of heat lost per hour:

<u>No. of breaths per hour:</u>

$B=b.60$

$B=21\times 60$

$B=1260$

<u>Now the total loss of energy in 1 hr.:</u>

$Q=Q_a.B$

$Q=74256\times 1260$

$Q=93562560\ J$

7 0

3 years ago