I<span>n physics, </span>sound<span> is a vibration </span>
<h2>
Answer:50
</h2>
Explanation:
Let
be the airspeed.
Let
be the cross wind speed.
We know that,ground speed is the vector sum of airspeed and cross wind speed and airspeed is perpendicular to cross wind speed.
If
and
are two perpendicular vectors,the resultant vector has the magnitude 
Given,

So,the ground speed is 
Larry, a 10-year-old, first sees two identical glasses with water at the same level;then, the water from one of the short, wide glasses is poured into a taller, thinner glass.Larry will likely conclude that <span>a. there is more water in the taller, thinner glass</span>
Answer:80kg/m^3
Explanation:
1L = 0.001m^3
25L= 25 *0.001 = 0.025m^3
Average density =mass/volume
Average density =2/0.025=80kg/m^3