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A cup of tea contains 175 g of water at a temperature of 85.0 °C. Milk at a temperature of 4.5 °C is added to the tea and the temperature of the mixture becomes 74.0 °C. What is the internal energy lost by the water? What is the mass of the milk?

(a) In a question like this, you will be given that the Specific Heat Capacity of water is 4200Jkg-1K-1. However, commiting this to memory will be helpful.

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Answered by Nathaniel S. Physics tutor
10095 Views

How do I overcome prenunciation problems?

When learning German, English learners can find it rather difficult to adapt to the accent and pronunciation of particular words and sounds. 

Typical mistakes

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PR
Answered by Paige R. German tutor
3355 Views

Why are food chains rarely longer than three or four stages?

A lot of energy is lost at each level

PW
Answered by Paul W. Biology tutor
4552 Views

Define 'biomass'

The dry mass of an organism

PW
Answered by Paul W. Biology tutor
5288 Views

What name is given to the junction of two or more neurones?

Synapse

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Answered by Paul W. Biology tutor
8732 Views

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