4. How much mass would an object moving at 2.0 m/s have to have to match the kinetic energy of a bullet of mass 0.015 kg moving at 220.0 m/s?
Giving extra points plz really need this you will make my day this is the last problem and I do not get it or understand plz help

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging