18. The short ton, known as the ton in the United States, is 2000 lbs (the long

Question

18. The short ton, known as the ton in the United States, is 2000 lbs (the long ton is 2240 lbs) How many kilograms are contained in one short ton of matter at the surface of the earth? A. 1000 kg B. 909 kg C. 4400 kg D. 449 kg E. 8900 kg 19. A ball is thrown in the presence of uniform gravity. The positive y-axis is directed DOWNWARDS. What is the acceleration vector in TWO dimensions? A. (8, 0) B. (-g, 0) C. (0, g) D. (0, -g) E. (-8, g) AB. (-B, -g) AC. (g. B) 20. Select ALL TRUE statements (there may be more than one correct statement; you must select ALL TRUE statements to get any credit) and assume A. Kinetic friction can be larger than static friction. B. Static friction can be larger than kinetic friction C. Static friction is always larger than kinetic friction D. Kinetic friction is always larger than static friction. E. None of the above statements are always true. 21. Which of the following are Newton's Laws of Motion? (Select all that apply.) B. Law of Action and Reaction C. Law of Conservation of Energy D, F = ma E. Law of Inertia.

Explanation / Answer

ACCORDING TO THE CHEGG GUIDELINES I AM ALLOWED TO ANSWER ONLY (FIRST ) ONE QUESTION AT A TIME.

1) Mass = 2000 lbs ( Need to convert the lbs to kg )

1lbs = 0.45359237 kg

2000 lbs = 2000 * 0.45359237 = 907.18474 kg or 909 kg ================ANSWER)

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