と思われる。
[1] （物理學）With what velocity must a lead bullet, at a temperature of 
, strike a nonconducting rigid target in order that the heat produced may be just sufficient to melt it ?
Melting point of lead .
Latent heat of fusionC.G.S. unit.
Mean specific heat
[2] （化學）Explain with some examples the bleaching actions of sulphur dioxide, bleaching powder and sun light.
[3] （力學）A rigid body oscillates under gravity about a horizontal axis. The particulats with regard to the motion are as follows: ---
The moment of interia of the body about the axis of suspention ... ;
The amplitude of oscillation ... ;
The period of oscillation ... .
Find the maximum angular velocity of the body.
