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Dmitrij
3 months ago
9

Quando aquecemos água em nossas casas, ao nível do mar, utilizando um recipiente aberto, sua temperatura nunca ultrapassa os 100

°C. Isso ocorre porque:
a) ao atingir essa temperatura, a agua perde sua capacidade de absorver calor.
b) ao atingir essa temperatura, a agua passa a perder exatamente a mesma quantidade de calor que esta recebendo, mantendo assim a temperatura constante.
c) as mudanças de fase ocorrem à temperatura constante.
d) ao atingir essa temperatura, a agua começa a expelir o oxigenio e outros gases nela dissolvidos.
e) as mudanças de fases de agua sempre ocorrem em 100 graus Celsius
Physics
1 answer:
Softa [3K]3 months ago
4 0

Answer:

I do not communicate in Spanish

Explanation:

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Yuliya22 [3333]

Explanation:

We are given that,

Mass of the rocket, m=250\times 10^3\ slugs

(a) The standard unit of mass is kilogram (kg). The conversion between slugs and kilograms is as follows:

1 slug = 14.59 kg

Thus, 250\times 10^3\ slugs=250\times 10^3\times 14.59

Mass of the rocket, m = 3647500 kg

(b) The weight of the rocket can be expressed as:

W = m g

W=3647500\times 9.8=35745500\ N

or

W=3.5\times 10^7\ N

(c) If the rocket were on the moon, the gravitational acceleration on the moon is given as a=5.3\ ft/s^2=1.61\ m/s^2

Mass refers to the quantity of matter present in an object. Therefore, the mass of the rocket remains constant at 3647500 kg

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W=3647500\times 1.61

W = 5872475 N

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W=5.8\times 10^6\ N

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