Answer:
0.3 km per second
Step-by-step explanation:
Kilo means one thousand, so you need to divide 330 metres by 1000 to get kilometres per second.
(330m/s)(km/1000m)=0.33km/s
See attached PDF. (The censor thinks there are some unseemly words in there.)
the answer is :
<1=90°
<2=41°
<3=49°
