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. 500000 J
562.8 KJ/kg
562800 J
562.8 J

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?