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ivolga24 [154]
3 years ago
8

Water contracts on freezing is it incorrect or conrrect

Physics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

hope it helps

much as you can

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An airplane is flying in air with a density of 1.29 kg/m3. A pressure gauge measures
jeka57 [31]

Answer:

341 m/s

Explanation:

Use Bernoulli equation:

P₁ + ½ ρ v₁² + ρgh₁ = P₂ + ½ ρ v₂² + ρgh₂

Assuming no elevation change, h₁ = h₂.

P₁ + ½ ρ v₁² = P₂ + ½ ρ v₂²

The velocity of the air at the nose is 0 m/s, so:

P₁ = P₂ + ½ ρ v₂²

ΔP = ½ ρ v₂²

Plugging in values:

75000 Pa = ½ (1.29 kg/m³) v²

v = 341 m/s

5 0
3 years ago
what system helps the body maintain homeostasis by giving it the nutrients it needs to perform different functions
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<span>The Cardiovascular system is the system that helps the body maintain homeostasis by giving it the nutrients it needs to perform different functions</span>
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3 years ago
Why is it important for scientist to do research?
sweet-ann [11.9K]

Answer:

Because if they dont research first they will be unprepared

Explanation:

3 0
3 years ago
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Which of the following is not a way to make exercising on a cold day safer?
IRISSAK [1]

Answer:

D.

Explanation:

I think its D. because Tea during a cold workout isnt safe at all. Drinking tea while working out adds weight and you just simply dont need tea when working out.. Hope this helps man :)

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What is the proper term for the lowest natural frequency that is produced by a vibrating object, such as an instrument?
marusya05 [52]

i believe your looking for this word ?? "fundamental".

6 0
4 years ago
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