See attached pic for problem. Has 3 parts- B,C and D

Question

asked Sep 6, 2023 81.7k views

1 Answer

Sergey Berezovskiy · Answer 1 · 2023-09-09T22:45:10+0000

Question 3a

To convert

$5GJ\text{ to }kj$

We can use the relationship:

$\begin{gathered} 1\text{ Gigajoules=1000000 Kilo joules} \\ \end{gathered}$

Thus,

Question 3b

To convert

$0.00006m\text{ to }\mu\text{m}$

We will make use of the relationship

$1000000\mu m=m$

Thus, the answer will be

$60\mu m$

Question 3c

Given that

$5280\text{ f}eet\text{ =1 mile}$

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

$\begin{gathered} x=3600*55 \\ x=198000\text{ }(ft)/(hour) \end{gathered}$

The next step will be to convert ft per hour to miles per hour

$\begin{gathered} Si\text{nce 5280 f}eet\text{ = 1 mile} \\ \\ \frac{198000ft}{\text{hour}}=y \end{gathered}$

Thus

$\begin{gathered} (198000)/(5280)\text{mile per hour} \\ \\ 37.5\text{ miles per hour} \end{gathered}$

Question 3d

Given that there are 2.2lb in 1 kg, 22.8 lb will be obtained as follow

$\frac{22.8lb*1\operatorname{kg}}{2.2lb}=10.36\operatorname{kg}$

Thus, the answer is 10.36kg