3. Sera placed 200 g of dry ice in a bucket and left it near the window. She returned after 5 days to find nothing was left in the bucket. Assuming that all ice had melted and evaporated over the 5 days, determine how much energy was used by the ice to completely evaporate. Specific heat of water = 4200 Jkgloc-1 Latent heat of vaporisation of water = 2.3 × 10 Jkg Latent heat of fusion of ice = 340 000 Jkg -1 -1

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?