How much heat is given out when a piece of iron of mass 50g and specific heat capacity of 460j/kg cool from 85c to 25c

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm

During cooling, the kinetic energy of the molecules falls. why does this happen? a. the motion of the molecules increases. b. the motion of the molecules slows down. c. the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.