Question

2. express each sum in its lowest given unit.
1. 53 cm +. 0.4 m
2. 6 cm + 0.3 m
3. 9m + 34 cm
4. 5mm + 0.3
5. 34cm + 18mm + 0.5 m
please step by step explaintion​

Answer 1

Here Work done=Heat

Current=I=10A

Time=t=10s

Potential difference=V=15V

We know

\boxed{\sf Heat=VIt}

Heat=VIt

\begin{gathered}\\ \sf\longmapsto H=15\times 10\times 10\end{gathered}

⟼H=15×10×10

\begin{gathered}\\ \sf\longmapsto H=15\times 100\end{gathered}

⟼H=15×100

\begin{gathered}\\ \sf\longmapsto H=1500J\end{gathered}

⟼H=1500J

Work done here is 1500Joules

Answer 2

express each sum in its lowest given unit.

1. 53 cm +. 0.4 m

2. 6 cm + 0.3 m

3. 9m + 34 cm

4. 5mm + 0.3

5. 34cm + 18mm + 0.5