Într-un calorimetru se pune o masă de 200 g alcool cu temperatura de 30 °C și apoi se adaugă o bilă de plumb cu temperatura de 80 °C. Știind temperatura lor de echilibru de 50 °C, determină cât cântărește bila de plumb. Se dă: căldura specifică a alcoolului 2430 J/kg∙K și cea a plumbului de 130 J/kg∙K.

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse