How many joules of heat would be required to heat 0.5 kg of aluminum by 2k? a) 300 j b) 450 j c) 900 j d) 1800 j

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

Could someone . i have tried to solve myself but my calculation is off

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island