1. A lizard of mass 6.10 g is warming itself in the bright sunlight. It casts a shadow of 1.60 cm² on a piece of paper held perpendicularly to the Sun's rays. The intensity of sunlight at the top of the Earth's atmosphere is 1.40 10³ W/m², but only half of this energy penetrates the atmosphere and is absorbed by the lizard. The lizard has a specific heat of 4.20 J/(gC).

Assuming that there is no heat loss by the lizard (to simplify), how long must the lizard lie in the Sun in order to raise its temperature by 1.50C?

__________________ min

2. A stainless steel saucepan, with a base that is made of 0.360-cm-thick steel ( = 46.0 W/(mK)) fused to a 0.150 cm thickness of copper ( = 401 W/(mK)), sits on a ceramic heating element at 220C. The diameter of the pan is 18.0 cm, and it contains boiling water at 100.00C.

If the copper-clad bottom is touching the heat source, at what rate will the water evaporate from the pan? Latent heat of vaporization (L_v) for water is 2256 J/g. Enter your answer in three decimal points.

_____________________g/s