Answer:
/ 
= 
= 5
Explanation:
Find the given attachment
It will not explode since the mass of the cotton balls is so low but rather will most likely break the lock and hinges and come out.
There are several information's already given in the question. Based on those information's the answer can be easily deduced.
Speed of the truck = 70 kph
= 19.44 m/s
Speed of sound = 343 m/s
Then
Observed frequency = 400 Hz ∗ 343 m/s/<span>19.44m/s + 343 m/<span>s
= 378.54
= 379 Hz</span></span>
<span>Venus is hotter due to the greenhouse effect: Venus has an atmosphere about ninety times thicker than that of Earth, and made almost entirely of carbon dioxide, which is one of the gasses that causes the greenhouse effect on Earth.</span>
<span>A hurricane hunter is an audacious job. They fly straight into hurricanes to gather scientific data and make observations. They are able to do this since the eye of an hurricane is calm, and they can make observations from there.</span>
