Kinetic Energy Problems = KE = 0.5m x 12 1. 5 kg wooden block moving at a speed of 2 m/s
2. 71kg man walking at 1.0 m/s
3. 71kg man running at 5.0 m/s
4. 1816kg car traveling at 25 m/s

Explanation:

The kinetic energy of an object is given by :

1. Mass, m = 5 kg

Speed, v = 2 m/s

2. Mass, m = 71 kg

Speed, v = 1 m/s

3.  Mass, m = 71 kg

Speed, v = 5 m/s

4. Mass, m = 1816 kg

Speed, v = 25 m/s

answer: mercury

explanation:

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.