Answer:
Great Precautions and He vanishes
Explanation:
Thats what i put and it was right
The third, it makes most sense to first describe the piano then say it was played.
Answer:
Well, you may want to find out about them before answering the questions. Reading about them gives you an idea on the questions you want to ask.
so the 2nd choice
Explanation:
If the jet plane is taking off, we know that initially the plane isn't moving (initial speed is zero, Vo=0m/s), the final speed (the one the plane needs to takeoff is 75m/s (Vf=75m/s), we need to verify if accelerating at a rate of 1.3m/s^2, the plane can reach the takeoff speed in a distance of 2.5km (the length of the runway). To do that we calculate the distance that will take to reach that speed, like the following:
this is the formula we are using, where "a" is the acceleration and "d" is the distance we are going to calculate.
d=2146.63m=2.146km.
The plane needs 2.146km to reach the takeoff speed, and the runway has 2.5km, so the plane will be able to use the runway safety.