solve 9 to 11

[2] Multiple Answer 0 points Pg A spring hangs from a hook on the ceiling. A person then attaches a block (initially at rest) to the bottom of the spring, and releases the block at the time t = 0. The block falls and the spring stretches. The block reaches its minimum height at the time f = fy. Check all the answers which are true statements. There may be more than one correct answer! The block has a speed of zero at both = 0 and = ty. The kinetic energy of the block stays constant at all times between t = 0 and t = ty. The spring does a negative amount of work on the block between t = 0 and t = ty. Air resistance does a positive amount of work on the block between t = 0 and t = ty. OO0C00 Gravity does a positive amount of work on the block between t = 0 andt = ty. Formula O points An object moving along the x-axis is subjected to a force given by the function F' = Bz* where B = 3.795, The work done on the object between the locations #;=1.20m and # =2.88m is J. Answer Formula 0 points A hockey puck is initially sliding along the ice at a speed of 11.7%. The kinetic friction coefficient between puck and ice is 0.109. The puck slidesadistanceof_ Hint: The mass of the puck should cancel out of your equations