I will mark as and 5 star. How much thermal energy is added to 1.5 kg of ice at -20°C to convert it to water at 0°C? Specific heat for ice is 2060 J/kg.°C and heat of fusion for water (ice) is 3.34×10⁵ J/C. *
5 points
500000 J
562.8 KJ/kg
562.8 J
562800 J

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?