Explanation:
Let us assume that piece 1 is 
is facing west side. And, piece 2 is 
facing south side.
Let 
= m and 
= 2m. Hence,
= 10.5 m/s
= 10.5 m/s
= 
= 14.84 m/s
or, = 15 m/s
Hence, the speed of the third piece is 15 m/s.
Now, we will find the angle as follows.
= 
= 
= 
Therefore, the direction of the third piece (degrees north of east) is north of east.
FALSE................................................................
<span>At time t1 = 0 since the body is at rest, the body has an angular velocity, v1, of 0. At time t = X, the body has an angular velocity of 1.43rad/s2. Since Angular acceleration is just the difference in angular speed by time. We have 4.44 = v2 -v1/t2 -t1 where V and t are angular velocity and time. So we have 4.44 = 1.43 -0/X - 0. Hence X = 1.43/4.44 = 0.33s.</span>
The answer is Efflorescent hydrate. <span>They are chemical substances that, when exposed to the atmosphere, release water. A typical example of this chemical reaction is cement, when mixed with water, the mixture hardens due to hydration, then the cement starts to lose water.</span>
