Una pieza cuadrada de hierro tiene un volumen total de 400 cm3. Después de aserrar la pieza por la mitad, se sometió a una temperatura más alta, cuyo aumento es equivalente a 30ºC. Sabiendo que el coeficiente 5〖x10〗^(-6) 〖°C〗^(-1) ¿Cuál será el volumen final de esta mitad de la pieza?

An object in mechanical equilibrium is an object

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?