A0.60-kg book slides on a horizontal table. the kinetic friction force on the book has magnitude 1.9 n . part a how much work is done on the book by friction during a displacement of 2.3 m to the left?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?