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3 years ago

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Why do smaller endotherms require more energy per unit of mass than larger endotherms?

1 answer:

Naily [24]3 years ago

4 0

They expend more oxygen. Littler endotherms lose warmth to the earth proportionately speedier than huge endotherms: less warm mass, protecting layers in littler creatures are less successful by dint of being more slender, and more prominent surface region to volume proportion implies snappier radiation of warmth

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An object of mass 20g taken at a height of 2m above the ground. Which type of energy is possessed by the object at this height ?

In-s [12.5K]

<h3><u>Given</u> </h3>

Mass of an object is $\bf\red{20 g}$
Height of the body is $\bf\green{2 m}$

<h3><u>To Find</u></h3>

Value of the energy

<h3><u>Solution</u></h3>

${\purple {\underline{\boxed{\sf{ Potential\: Energy \:=\: mgh}}}}}$

Where,

$\sf\red{m}$ = Mass
$\sf\green{g}$ = Gravity
$\sf\blue{h}$ = Height

Now, Converting gram to kg

$\longrightarrow\:$ 1000g = 1kg

$\longrightarrow\:$ 20g = $\sf\dfrac{20}{1000}$

$\longrightarrow\:$ = 0.02 kg

According to the question

$\sf\red{Mass \:= \:0.02 kg}$

$\sf\green{Gravitational \;force \:= \;10 m/s^{2}}$

$\sf\purple{Height\: =\: 2 m}$

Putting these values

$\to\:$ Potential Energy = mgh

$\to\:$ Potential Energy = 0.02 × 10 × 2

$\to\:$ Potential Energy = 0.2 × 2

$\to\:$ Potential Energy = $\bf\pink{0.4\:joules}$

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3 years ago

What name is given to the rate at which velocity changes?<br> Answer mere

Illusion [34]

Answer:

Acceleration

Explanation:

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Elements with atomic numbers above 95 are called _____ elements

mrs_skeptik [129]

Transuranium elements

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poizon [28]

Answer:

C

Explanation:

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Câu 1. Trường hợp nào dưới đây không phải là vật sáng?

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Answer:

A

Explanation:

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