Average speed of a particular airplane is 729.8mi/h. What's speed in m/s

Determine specific heat in J/g times degree celcius. Mass of substance 29.2g, initial temp 34.4degrees celcius, final temp 68.1degrees celcius, heat applied 436.9 j

density of table salt is 2.16g/cm^3. What is volume in Liters of a 154.3kg salt sample