Which statements describe the image produced by a concave lens?check all that apply.
a:the image is always right side up.
b:the image is real
c:the image is larger than the object
d:the image is upside down
e:the image is virtual

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?