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4 years ago

10

Which process is not required for an animal to obtain energy from food?

1 answer:

Romashka [77]4 years ago

5 0

Complete Question:

Which process is not required for an animal to obtain energy from food?

a. Secretion.

b. Digestion.

c. Excretion.

d. Ingestion.

Answer:

c. Excretion.

Explanation:

Excretion is a metabolic process in which living organisms gets their system rid of metabolic waste, water and excess ions. This is usually done with the aid of kidney, skin and lungs in all vertebrates.

Example of excretions are urination, sweating and defecation.

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Papers scattered randomly across the desk represents high entropy and are a good example of which law?

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4 years ago

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3 years ago

What step of the scientific method involves asking a question based on an observation

Nataly [62]

Answer: it’s the first one I think

Explanation:

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4 years ago

Read 2 more answers

Which option is the best blackbody radiator?

SSSSS [86.1K]

Answer:

A. The Sun

Explanation:

The Sun is to be considered a perfect black body.

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3 years ago

Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their

goldfiish [28.3K]

Answer:

2.55348650884 m/s

2.67400481907 m/s²

10.6960192763 m/s²

Explanation:

d = Diameter of the ride = 16 ft= $16\times 0.3048=4.8768\ m$

r = Radius = $\dfrac{4.8768}{2}=2.4384\ m$

t = Time taken = 6 seconds

Velocity is given by

$v=\dfrac{2\pi r}{t}\\\Rightarrow v=\dfrac{2\pi 2.4384}{6}\\\Rightarrow v=2.55348650884\ m/s$

The speed is 2.55348650884 m/s

Acceleration is given by

$a=\dfrac{v^2}{r}\\\Rightarrow a=\dfrac{(\dfrac{2\pi 2.4384}{6})^2}{2.4384}\\\Rightarrow a=2.67400481907\ m/s^2$

The acceleration is 2.67400481907 m/s²

When the speed is halved

$v=\dfrac{2\pi 2.4384}{\dfrac{6}{2}}=5.10697301768\ m/s$

$a=\dfrac{v^2}{r}\\\Rightarrow a=\dfrac{(\dfrac{2\pi 2.4384}{\dfrac{6}{2}})^2}{2.4384}\\\Rightarrow a=10.6960192763\ m/s^2$

The acceleration is 10.6960192763 m/s²

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4 years ago