Question 3a
To convert
[tex]5GJ\text{ to }kj[/tex]
We can use the relationship:
[tex]\begin{gathered} 1\text{ Gigajoules=1000000 Kilo joules} \\ \end{gathered}[/tex]
Thus,
[tex]5Gj=1000000Kj[/tex]
Question 3b
To convert
[tex]0.00006m\text{ to }\mu\text{m}[/tex]
We will make use of the relationship
[tex]1000000\mu m=m[/tex]
Thus, the answer will be
[tex]60\mu m[/tex]
Question 3c
Given that
[tex]5280\text{ f}eet\text{ =1 mile}[/tex]
To convert 55 feet per second to miles per hour, we will follow the steps below
Step 1: Convert 55 feet per second to feet per hour
Since there are 3600 seconds in 1 hour
The value of x can then be obtained as follow
[tex]\begin{gathered} x=3600\times55 \\ x=198000\text{ }\frac{ft}{hour} \end{gathered}[/tex]
The next step will be to convert ft per hour to miles per hour
[tex]\begin{gathered} Si\text{nce 5280 f}eet\text{ = 1 mile} \\ \\ \frac{198000ft}{\text{hour}}=y \end{gathered}[/tex]
Thus
[tex]\begin{gathered} \frac{198000}{5280}\text{mile per hour} \\ \\ 37.5\text{ miles per hour} \end{gathered}[/tex]
Question 3d
Given that there are 2.2lb in 1 kg, 22.8 lb will be obtained as follow
[tex]\frac{22.8lb\times1\operatorname{kg}}{2.2lb}=10.36\operatorname{kg}[/tex]
Thus, the answer is 10.36kg
