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Misha Larkins [42]
3 years ago
9

A substance freezes at 25 degree celcius and boils at450 degree celcius at what temperature will the subsancehave a definate sha

pe and a defnate volume
Physics
2 answers:
Bad White [126]3 years ago
4 0

Answer:

solid

Explanation:

I really don't know

shepuryov [24]3 years ago
3 0

Answer:

In Sections 1.3 and 2.5A3, we noted that the physical properites of a particular substance determine its state at room temperature. If both its normal melting point and its normal boiling point are below room temperature (20°C), the substance is a gas under normal conditions. The normal melting point of oxygen is -218°C; its normal boiling point is -189°C. Oxygen is a gas at room temperature. If the normal melting point of a substance is below room temperature, the substance is a liquid at room temperature. Benzene melts at 6°C and boils at 80°C; it is a liquid at room temperature. If both the normal melting point and the normal boiling point are above room temperature, the substance is a solid. Sodium chloride melts at 801°C and boils at 1413°C. Sodium chloride is a solid under normal conditions. Figure 9.1 illustrates the relationship between physical state and normal melting and boiling points.

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Answer:

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Explanation:

8 0
3 years ago
A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 4.50 m from the center of rotation. (a) Calculate th
NeX [460]

Answer:

(a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

Explanation:

Given that,

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Using formula of average speed

v=r\omega

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(b). The average velocity over one revolution is zero.

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77julia77 [94]

Answer:

V=200cm^3\\\\\rho =0.500g/cm^3

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Explanation:

Hello.

In this case, given the width, length and height, we can compute the volume as follows:

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Moreover, since the density is computed via the division of the mass by the volume:

\rho =\frac{m}{V}

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In such a way, since the solid has a lower density than the water, we infer it will float.

Best regards.

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