Answer:
![a=3.34\ m/s^2](https://tex.z-dn.net/?f=a%3D3.34%5C%20m%2Fs%5E2)
Explanation:
<u>Accelerated Motion
</u>
It refers to the motion of objects in which velocity is not constant over time. If the change of the velocity occurs at the same rate, then we say it's uniformly accelerated. Being
= initial speed,
= final speed, a= constant acceleration, x= distance traveled
Then, the scalar relation between them is
![v_f^2=v_o^2+2ax](https://tex.z-dn.net/?f=v_f%5E2%3Dv_o%5E2%2B2ax)
The aircraft needs to reach a liftoff speed of 53 m/s from rest (assumed) having only 420 meters to do so. We can compute the acceleration by solving for a
![\displaystyle a=\frac{v_f^2-v_0^2}{2x}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20a%3D%5Cfrac%7Bv_f%5E2-v_0%5E2%7D%7B2x%7D)
![\displaystyle a=\frac{53^2-0^2}{2(420)}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20a%3D%5Cfrac%7B53%5E2-0%5E2%7D%7B2%28420%29%7D)
![\boxed{a=3.34\ m/s^2}](https://tex.z-dn.net/?f=%5Cboxed%7Ba%3D3.34%5C%20m%2Fs%5E2%7D)
No. 'Thrust' is what most people in aviation call the force
that pushes the aircraft forward.
The same people generally call the upward force on the wing "lift".
Answer:
2.2 x 10-19
Explanation:
Kinetic Energy = 1/2 m v ^2
Answer:
O²⁻
Explanation:
Number of protons = 8
Number of neutrons = 9
Number of electrons = 10
What type of atom or ion is it = ?
Solution:
Protons are the positively charged particle in an atom
Neutrons do not carry any charges
Electrons are negatively charged particles
For this atom, the number of protons helps to identify what specie it is; so this is an oxygen atom.
Now,
Charge = Number of protons - Number of electrons
Charge = 8 - 10 = -2
The charge on the atom is -2 and so it is an oxygen ion with -2 charge
The ion is O²⁻