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A 3.9-kg block starts sliding along a rough horizontal surface at a velocity of v = 21 m/s. Part of the block's kinetic energy that is lost to frictional heat is Eheat = 37.5 J. At the end, the block is brought to rest by compressing a spring of spring constant 175 N/m. What is the maximum spring compression, in cm? Please round your answer to the nearest whole number (integer).A block starts from rest at the top of a rough inclined plane that makes an angle of 30" with the horizontal. The coefficient of kinetic friction is Ux = 0.44. The block moves 4 m down the plane. What is its speed, in m/s, at the bottom of the inclined plane? Take g = 9.8 m/s . Please round your answer to two decimal places