The cover of your physics book measures 0.226 m long and 0.144 m wide. What is i

Question

The cover of your physics book measures 0.226 m long and 0.144 m wide. What is its area is square meters? 0.0325; 0.032544; 0.325; 0.03254 A block of mass 3 kg is acted upon by two forces: 8 N (directed to the left) and 11 N (directed to the right). What can you say about the block's motion? Continuously changing direction Moving with continuously increasing acceleration Moving with a constant nonzero acceleration Moving at constant velocity A boy is still near the rim of a rotating merry-go-round, while a girt is sitting near the center, which one of the following is true? The girl has larger angular speed The boy has larger angular speed Their angular speeds are the same None of the above

Explanation / Answer

1) Q=m(Hf)
X=2000g/18g per mole(6.01kj/mol)
X= 667.8 kJ = 6.66*10^5 J (option B)

2) Area = 0.226*0.144 = 0.032544 (Option B)

3) It could be moving to the left, moving to the right, or be instantaneously at rest.

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