2. A maglev train carriage has a mass of 25,000 kg and a length of 20m. The maximum magnetic flux density that can be generated is 45 T. Calculate the current needed to create sufficient force to lift the carriage.
Gravitational field strength = 9.8 N/kg

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explanation:

i'm only doing this the points

a skateboard rolling across the street - apex

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.