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Kaylis [27]
3 years ago
5

If a book has a a mass of 2 kg, how much does the book weigh?

Physics
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

A. 20 N

Explanation:

the weight of book is 2×10= 20N

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John decided to cycle to his friend's house at a speed of 5km/h and the journey took 2
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To protect her new two-wheeler, Iroda Bike
goldfiish [28.3K]

Answer:

The length of chain she is allowed is 1.169 ft

Explanation:

The given parameters are;

The linear density of the chain = 0.83 lb/ft

The weight limit of the chain she wants = 1.4 lb

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Therefore, in order to keep the chain below 1.4 lb, we have;

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Therefore;

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2 years ago
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Natali5045456 [20]
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4 0
2 years ago
A student attempted to measure the specific latent heat of vaporisation of water.
tensa zangetsu [6.8K]

Answer:

The latent heat of vaporization of water is 2.4 kJ/g

Explanation:

The given readings are;

The first (mass) balance reading (of the water) in grams, m₁ = 581 g

The second (mass) balance reading (of the water) in grams, m₂ = 526 g

The first joulemeter reading in kilojoules (kJ), Q₁ = 195 kJ

The second joulemeter reading in kilojoules (kJ), Q₂ = 327 kJ

The latent heat of vaporization = The heat required to evaporate a given mass water at constant temperature

Based on the measurements, we have;

The latent heat of vaporization = ΔQ/Δm

∴ The latent heat of vaporization of water = (327 kJ - 195 kJ)/(581 g - 526 g) = 2.4 kJ/g

The latent heat of vaporization of water = 2.4 kJ/g

6 0
3 years ago
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