Just beneath the sun’s visible surface, called the photosphere, is a zone where energy is transported by the rising of hot gas and the falling of cool gas. The tops of these circulation cells account for the grainy appearance of the photosphere. What heat transfer process is occurring in this zone? A Radiation B Conduction C Induction D Convection

What is created when solids,liquids,an gases mix with one another

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass