Answer:
Mechanical energy is basically the energy of movement
For example, if I am running, im using Mechanical energy
Answer:
a.

b.

Explanation:
1. Get a scientific calculator Casio fx-82ZA PLUS
2. Press shift,mode/set up, 7 and then 5
3. press whatever number you want and watch the magic happen
<span><span>Atomic number36,</span><span>Atomic mass<span>83.80 g.mol -1,</span></span><span>Density<span>3.73 10-3 g.cm-3 at 20°C,</span></span><span>Melting point- 157 °C,</span><span>Boiling point<span>- 153° C</span></span></span>
The answer to this would be b ,
There are 2 significant figures