4. An 800 kg wrecking ball needs to achieve a velocity of 50 m/s at the bottom of the swing in order to break through a brick wall. How high
does it need to be pulled in order to achieve this velocity?

Write the correct abbreviation for each metric unit

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?