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4 years ago

15

1. 2. 3. please help me

1 answer:

Phoenix [80]4 years ago

5 0

Answer: 4.98

Explanation: a1 is the number that is in front of the parenthesis. R is the number inside the parenthesis. N is the number you are trying to find. This is usually located on top of the sigma. Plug this all in a calculator, and you should get this answer.

Hope this helps!!!

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A 0.30 kg bird flies in a horizontal curve of radius 20 m at 15 m/s. The force exerted by the air on the bird is about

monitta

Answer:

<h2>b) 3.48 N approx.</h2>

Step-by-step explanation:

<em>The bird will experience a centripetal force, this is the force exerted on a body that moves through a curve path.</em>

$F_c = \frac{mv^2}{r}$

Fc=centripetal force

m=mass

v=velocity

r=radius

Step one:

given data

mass of bird m=0.3kg

the radius of curve r= 20m

velocity v= 15 m/s

Substituting we have

$F_c = \frac{0.3*15^2}{20}\\\\F_c= \frac{0.3*225}{20}\\\\ F_c=\frac{67.5}{20}\\\\F_c=3.37N$

<u>The force is 3.37N</u>

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3 years ago

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3 years ago

Which of the following inequalities matches the statement below: X is greater than or equal to 10

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Step-by-step explanation:

x is greater than or equal to 10.

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<u>Key:</u>

> - Greater Than.

< - Less Than.

≥ - Greater Than or Equal to.

≤ - Less Than or Equal to.

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