Particulate Nature of Matter B.1 Thermal Energy Transfers (id: 7dd49e56d)

本题目来源于试卷: Particulate Nature of Matter B.1 Thermal Energy Transfers，类别为 IB物理学

[单选题]
A pendulum consists of a mass M with a specif3rc k md 5*ihc:ymal6/ic heat capacyg; k r0c sj5fenu74k5 0wm2zyity S suspended from a point by a light string of length L. The pendulum is placed in an insulated c gmjys ycun5w7rke45 0f;0 kz2ontainer filled with a mass 2M of liquid with a specific heat capacity 2S. The pendulum is released from rest with the string horizontal. Assume that acceleration due to gravity is g and that both have the same starting temperature.

If all of the energy from the pendulum is converted to thermal energy, what is the temperature change of the liquid?

A. $\frac{gL}{2S}$
B. $\frac{gL}{5S}$
C. $\frac{2gL}{5S}$
D. $\frac{5gL}{2S}$


参考答案:  B


本题详细解析:

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