All categories

3 years ago

Helpp!!! Will mark brainlst

Physics

1 answer:

masya89 [10]3 years ago

5 0

Answer:

i dont know

Explanation:

cuz i dont know what it wrote its too blurry

You might be interested in

What is the SI (metric) unit of FORCE? A. meter B. newton

Tresset [83]

What is the SI (metric) unit of FORCE?

B. newton

with symbol ( N )

All the best !

4 0

3 years ago

Read 2 more answers

Total lung capacity of a typical adult is approximately 5.0L. Approximately 20% of the air is oxygen, as air is 20% oxygen. At s

Tresset [83]

Answer:

n=0.03928 moles

Moles of oxygen do the lungs contain at the end of an inflation are 0.03928 moles

Explanation:

The amount of oxygen which lung can have is 20% of 5 L which is the capacity of lungs

Volume of oxygen in lungs =V=5*20%= 1 L= $1*10^{-3} m^3$

Temperature=T= $37^oC=273+37=310K$

Pressure at sea level = P= 1 atm= $1.0125*10^5 Pa$

R is universal Gas Constant =8.314 J/mol.K

Formula:

$n=\frac{PV}{RT}\\n=\frac{(1.0125*10^5) *(1*10^{-3})}{(8.314)*310} \\n=0.03928 mol$

Moles of oxygen do the lungs contain at the end of an inflation are 0.03928 moles

8 0

4 years ago

How do fossils provide evidence that evolution has taken place

zzz [600]

Fossils provide solid evidence that organisms from the past are not the same as those found today; they show a progression of evolution. Scientists calculate the age of fossils and categorize them to determine when the organisms lived relative to each other. Hope this helps

7 0

3 years ago

What is the resultant of vectors shown

Ilya [14]

Answer:

adding to or more vectors together . When displacement vectors are added, the result is a resultant displacement. But any two vectors can be added as long as they are the same vector quantity.

Explanation:

4 0

4 years ago

An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 2060 × 103 seconds (about

Fittoniya [83]

Answer:

Acceleration, $a=2.22\times 10^{-3}\ m/s^2$