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dimaraw [331]
3 years ago
5

A block of aluminum at a temperature of T1 = 32 degrees C has a mass of m1 = 12 kg. It is brought into contact with another bloc

k of aluminum with a mass of m2 = 0.5m1, at a temperature of T2 = 9 degrees C. This aluminum has a heat capacity of c = 899 J/kg K.
Physics
1 answer:
Mariulka [41]3 years ago
5 0

Answer:T=21.33 ^{\circ}

Explanation:

Given

mass of First Block m_1=12 kg

Temperature T_1=32^{\circ}

mass of second block m_2=0.5 m_1=6 kg

Temperature T_2=9^{\circ}

Heat capacity of aluminium c=899 J/kg-K

Final Temperature acquired by both blocks at steady state

Heat loss first block =Heat gain by second block

m_1\times c\times (32-T)=m_2\times c\times (T-9)

12\times 899\times (32-T)=6\times 899\times (T-9)

2\times 32=3T

T=\frac{64}{3}=21.33 ^{\circ}

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Because acceleration is constant, the acceleration of the car at any time is the same as its average acceleration over the duration. So

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3 years ago
Two circular coils are concentric and lie in the same plane. The inner coil contains 170 turns of wire, has a radius of 0.0095 m
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Radius of outer circle r_o=0.015m

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a cone is constructed by cutting a sector from a circular sheet of metal with radius . the cut sheet is then folded up and welde
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The expression for the radius and height of the cone can be obtained from

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\underline{\left  \right. The \ radius, \, r =\sqrt{ \dfrac{3}{4}} \cdot s}

\underline{The \ height, \, h =\sqrt{s^2 - \dfrac{3}{4}\cdot s^2} = \dfrac{s}{2}}}

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brainly.com/question/14466080

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