Please solve all the following FULLY. Thanks hero

Question 4: A 10.0-kg block is released from rest at point A in the diagram. The track is frictionless except for the portion between points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2 250 N/m, and compresses the spring 0.300 m from its equilibrium position before coming to rest momentarily. Determine the coefficient of kinetic friction between the block and the rough surface between points B and C. K:2, 1:3, A:3, C:2) A 3.00 m -6.00 m - B Question 5: A block with mass m=12.5 kg is placed on a spring, with a constant of 120.0 N/m along a frictionless slope with an angle of 0=20. If the spring was compressed by 0.20 m then the mass is released up the hill. Determine (K:2, 1:3, A:3, C:2) A. the acceleration of the block when it leaves the spring. B. the maximum height it reaches. 100Question 1: A snow sled with a child is being pushed downwards from a height of 4.00 Hi, 20 snow hill with an initial velocity of 3.00 mfs. Determine the velocity of the sled at the bottOm of the hill if (Kzl, 1:1, Azl, C:2) A. the hill is frictionless B. the hill has a coefficient of friction of M = 0.10. Question 2: A vertical spring as shown in the diagram has a mass M=4.00 kg that is being attached to it. The attachment of this mass resulted in a extension of 0.25 m at the equilibrium. Determine the period of this system if it were to set into a motion. (K21, I:1, A:1) M Question 3: A horizontal spring with an initial deformation of A is applied to set it in motion. Find (K:1, 1:2, Az2) A. an expression for the maximum velocity and the position. B. an expression for the maximum acceleration and its position