An acceleration of 2m/s^2 is produced on a body by applying an effort of 50N. calculate mass of the body​

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

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?