At what distance (in mm) from a long, straight wire carrying a current of 30 A will the magnitude of the magnetic field be 1.2 mT? mm

your answer would be fusion

f=ma newton

f=100x2.5=250n

an electric circuit

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.