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

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

If a balloon is taken outside on a very cold day, what will occur?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v