La historia de Centroamérica Cómo se relaciona con la agricultura

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

Explain vector addition, triangle method and parallelogram method

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.