A drop of water has an electric charge of -1.6 x 10^-16 C. How many excess electrons does this drop of water have?! (Let the elemental charge: 1,6.10^-19)
a) 100
b) 300
c)625
d) 1000
e)1600

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Ascientist is tracking an object orbiting the sun that is found between mars and jupiter. in order to classify the object as an asteroid, it must be at least

The material that keeps its new shape after it is stretched is called?

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?