Suppose you have a pendulum clock which keeps correct time on earth(acceleration due to gravity = 1.6 m/s2). for ever hour interval (on earth) the moon clock:

a) (9.8/1.6)h
b) 1 h
c) the square root of 9.8/1.6 h
d) (1.6/9.8)h
e) the square root of 1.6/9.8 h

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?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Me with this and you will be marked brainliest