Ce mase de apa aflate la temperatura t1=15°C respectiv t2=80°C, trebuie amestecate pentru a obtine 50L litri de apa la temperatura t=30°C?

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

Drag each item into the proper state of matter category.

What is a carrier wave and how does it affect what you hear on the radio