1. What is the formula for momentum,and is it a vector? 2. Briefly state Newton’s Third Law 3. If a box is sliding to the right, what direction is the force of friction on the box? 4. Name one difference between mass and weight. 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多...
Meanwhile, the centrifugal force is what's known as a fictitious force: It's an apparent outward force on an object that is moving in a circle. This phantom force can nevertheless feel very real if you are the one rotating. For instance, centrifugal force is a way to describe the sensati...
What was it like to lead a school in Estonia through the school closures? This week, Indrek Lillemägi looks back on his experiences in the pandemic as leader of the Emili Kool (named for Jean Jacques Rouseau’s book Emile, or On Education), a private K-9 school that Lillemägi ...