Answer:
The ratio of the model size is 1 : 2000
Explanation:
Given
Real Diameter = 0.012 um
Scale Diameter = 24 um
Required
Determine the scale ratio
The scale ratio is calculated as follows;

Substitute values for real and scale measurements

Divide the numerator and the denominator by 0012um

Represent as ratio

<em>Hence, the ratio of the model size is 1 : 2000</em>
Answer:
Sound will travel the slowest in Air
Explanation:
The higher the m/s is, the faster the sound travels
60 miles
explanation: 20•3=60
hope this helps
Constant velocity means the netto force = 0, therefore F(gravity) = F(astronaut).
175N divided by 87,5kg = 2.00kg/N