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svlad2 [7]
3 years ago
7

What is the volume of a cone with a height of 27 cm

Chemistry
1 answer:
andreev551 [17]3 years ago
5 0

Answer:

the answer is 4778.36

Explanation:

do pi time the radius squared times the height divided by 3

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How much energy (in joules) is released when 0.06 kilograms of mercury is condensed to a liquid at the same temperature? A. 51,3
expeople1 [14]
The amount of energy released when 0.06 kg of mercury condenses at the same temperature can be calculated using its latent heat of fusion which is the opposite of melting. Latent heat of fusion and melting can be used because they have the same magnitude, but opposite signs. Latent heat is the amount of energy required to change the state or phase of a substance. For latent heat, there is no temperature change. The equation is:

E = m(ΔH)

where:
m = mass of substance
ΔH = latent heat of fusion or melting

According to data, the ΔH of mercury is approximately 11.6 kJ/kg.

E = 0.06kg (11.6 kJ/kg) = 0.696 kJ or 696 J

The answer is D. 697.08 J. Note that small differences could be due to rounding off or different data sources.
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3 years ago
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What 3 sub types of covergent plate boundaries?
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5 0
2 years ago
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zlopas [31]

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2: Basic

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2 years ago
When magnesium (mg) metal is placed in hydrochloric acid (hcl), it forms magnesium chloride (mgcl2) and a gas. what gas is forme
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Magnesium in hydrochloric acid forms H2 (hydrogen) gas according to the balanced chemical equation:
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6 0
3 years ago
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A runner is traveling around the track below at a constant speed. Is she accelerating?
Black_prince [1.1K]

<h2>ANSWER:</h2>

D.No, she is not accelerating because her speed is constant.

<h2>EXPLANATION:</h2>

The rate of change of velocity with respect to time is known as acceleration.

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As she is running at constant speed  and there is no change in velocity so she is not accelerating.

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3 years ago
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