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Butoxors [25]
2 years ago
12

State two ways of reducing the drag forces on a bicycle

Physics
1 answer:
Eddi Din [679]2 years ago
7 0
I am quite sure the first one is Friction, but I am not sure about the second one. Is it wind?
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A 5.0-kg block of wood is placed on a 2.0-kg aluminum frying pan. How much heat is required to raise the temperature of both the
Shalnov [3]

Heat required to raise the temperature of a given system is

Q = ms\Delta T

here we know that

m = mass

s = specific heat capacity

\Delta T = change in temperature

now as we know that

mass of wood = 5 kg

mass of aluminium pan = 2 kg

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specific heat capacity of aluminium = 900 J/kg C

now here we will find the total heat to raise the temperature of both

Q = m_1s_1\Delta T_1 + m_2s_2\Delta T_2

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