The attraction between Earth and Sydney is equal to her weigh. The reaction to E

Question

The attraction between Earth and Sydney is equal to her weigh. The reaction to Earth's pull on Sydney is Sydney's pull on Earth Sydney pushing against Earth's surface the support of Earth's surface on Sydney. None of the above Two identical golf carts move at different speeds. The faster cart has twice the speed and therefore has four times the kinetic energy twice the kinetic energy eight times the kinetic energy none of the above The center of a long uniform log is raised to shoulder level while the other end is on the ground. if instead the end of the log is raised to shoulder level. the work required is the same twice half neglecting air resistance. sammy Smarts on a high ladder releases a ball that that strikes the ground with 100 j of kinetic energy. if he were to instead throw the ball straight upward. it will soon reach the ground with a kinetic energy of l less than 100 j more than 100 j 100 j Danny Driver weight 500 N and steps off a driving board 10 m abo

Explanation / Answer

15) B) sydney pushing against earth's surface

16) A) 4 times the kinetic energy as K.E. = (1/2)mv2

17) A) the same

18) B) more than 100 J

19) D) 5000 J as K.E. = weight * height

20) A) of 40 J

21) A) accelaration

22) C) 2m/s

23) A) 62.8 m/min. as speed = 2pi*1*10

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