¿En qué tiempo adquirirá un cuerpo una velocidad de 45 km/h si parte con una velocidad de 18 cm/s y se mueve con una aceleración de 4 cm/s2?

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.