Calculate the weight of a 2kg block of chalk on Earth, where g = 10N/kg

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

What are the necessary conditions for fusion?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?