Los rieles de una vía de tren de acero tienen 1500 m de longitud. ¿Qué longitud tendrá cuando la temperatura aumente de 24 ºC a 45 ºC?
Coeficiente de dilatación lineal: 11 × 10 -6 ºC -1

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.