3 years ago

True or False: Chemical energy stored in food cannot be transformed into mechanical energy

Physics

2 answers:

Novosadov [1.4K]3 years ago

7 0

The answer to this question is false.

nordsb [41]3 years ago

3 0

It's false. it can be transform

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An ostrich can run at speeds of up to 72 kilometers per hour. How long will it take an ostrich to run 1.5 kilometers at this top

tatiyna

S=d/t
T=d/s
= 1.5/72
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3 years ago

Introduces una masa de 80g en una probeta con 60cm cúbicos de agua y el nivel sube hasta 75cm cúbicos. qué densidad tiene la mas

ExtremeBDS [4]

Answer:

$d=5.33\ gr/cm^3$

Explanation:

<u>Densidad</u>

La densidad de una masa m que ocupa un volumen v se define como:

$\displaystyle d=\frac{m}{V}$

Tenemos que una masa de 80 gr hace que un volumen de agua se desplace desde 60 cm3 hasta 75 cm3, es decir, el volumen propio de la masa es m = 75 - 60 = 15 cm3.

Con esta información se calcula la densidad:

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Operando:

$\boxed{d=5.33\ gr/cm^3}$

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3 years ago

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KIM [24]

Answer:

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a = v/t

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2 years ago