3. A carrot, 0.8kg, is sitting on a cutting board at rest. With a yell, a chef hacks it in two. Find the velocity of the other piece if a)a 0.4kg piece goes to the left at 3m/s b) a 0.7kg piece goes to the right at 35m/s c)a 0.2kg piece goes to the left at 6m/s d)a 0.5kg piece stays at rest.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

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?