Acar traveling at 45 m/s starts to decelerate steadily. it comes to a complete stop in 10 seconds. what is it’s acceleration

In the first law of thermodynamics, triangle e=q-w, what does q stand for

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?

Hello i am required to make a physics experiment plus powerpoint presentation. i want to see your suggestions about simple topics with examples of how to talk about it in the presentation. note: any incomplete answer will be reported.