Answer:
The speed of the plane before the collision is 12.6 m/s.
Explanation:
Let us get some things clear first.
The drone is hovering <em>stationary</em> at an altitude of 11.3 m, which means its velocity is zero. Furthermore, after the collision the two aircraft are stuck together and <em>move east at an altitude of 11.3 m</em>, which means their velocity has no vertical component because if it had their altitude would have changed.
The law of conservation of momentum says that
.
where and .
Since <em>(the drone is hovering stationary)</em>, and <em>(the aircraft are stuck together),</em> we have
Thus, the speed of the plane prior to the collision is 12.6 m/s.
Answer:
The advantages of the multi-stage fitness test and the direct VO2 measurement are that it is the most accurate testing, the disadvantage it requires hard work. The estimated VO2 max requires less activity, but it is less accurate.
Explanation:
Answer:
B
Explanation:
i just guessed and got it right on the a p e x quiz
Answer:
Q1) C, D
Q2) A
Q3) E
Q4) C
Q5) B
Q6) C
Explanation:
I think these are correct, hopefully it helps!