Draco decides to hide Doyle's 17.64 N Potions textbook. He pushes it leftward to compress a 15 N/m spring 0.7 m. When he releases it, the book flies 7 m across the smooth 1.9 m high desk. If there is a pile of clothes 6.5 m away from the base of the desk, will the book land and get lost amongst the clothes or will Draco's prank fail?

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction