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?

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight