A piece of copper of mass 300g at a temperature of 950 o C is quickly transferred into a vessel of negligible heat capacity containing 250g
of water at 25 o C. If the final steady temperature of the mixture is
100 o C. Calculate the mass of water that will boil away. (take specific
heat capacity of copper = 4.0x10 2 Jkg -1 K -1 , specific heat capacity of
water = 4.2 x10 3 Jkg -1 K -1 , specific latent heat of vaporization of steam =
2.26x10 6 Jkg -

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.