1. An ornament of mass 16.3 g is attached to a vertical ideal spring with a force constant (spring constant) of 25.2 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch? 2. A dart of mass 0.100 kg is pressed against the spring of a toy dart gun. The spring, with spring stiffness constant k = 256 N/m and ignorable mass, is compressed 4.7 cm and released. If the dart detaches from the spring when the spring reaches its natural length (x=0) what speed does the dart acquire? 3. If you throw a 148.83 g baseball straight up into the air at 62.4-mph how high will it get if air resistance is not present??? 4. Ideally speaking How much power does it take a powerlifter to lift 252-lbs 0.95-m of the ground in 1.8-seconds