A 23∘C, una varilla mide exactamente 24.15cm de largo según una regla de acero. Tanto la varilla como la regla se ponen en un horno a 285∘C donde la varilla mide ahora 24.24cm según la misma regla. ¿Cuál es el coeficiente de expansión térmica para el material de la varilla? ( αacero=11×10−6/C∘ )

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change