The birth rate would be increasing due to the increasing population. The age structure would therefore be becoming more diverse as more people were being born and most likely immigrating into that population.
No it cannot because you would have to test it over and over again to make sure it was correct the first time.
Answer:
3. 0.5 sec.
Explanation:
A bullet fired horizontally follows a projectile motion, which consists of two independent motions:
- A horizontal motion with constant speed
- A vertical motion with constant acceleration, g = 9.8 m/s^2, towards the ground
The time taken for the bullet to reach the ground can be calculated just by considering the vertical motion:
![y(t) = h + v_{0y} t - \frac{1}{2}gt^2](https://tex.z-dn.net/?f=y%28t%29%20%3D%20h%20%2B%20v_%7B0y%7D%20t%20-%20%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
where y is the vertical position at time t, h is the initial height, and
is the initial vertical velocity of the bullet.
Since the bullet is fired horizontally,
. So the equation becomes
![y(t) = h - \frac{1}{2}gt^2](https://tex.z-dn.net/?f=y%28t%29%20%3D%20h%20-%20%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
And the time that the bullet takes to reach the ground can be found by requiring y=0 and solving for t:
![t=\sqrt{\frac{2h}{g}}](https://tex.z-dn.net/?f=t%3D%5Csqrt%7B%5Cfrac%7B2h%7D%7Bg%7D%7D)
As we can see, in this equation there is no dependance on the initial speed of the bullet: therefore, if the bullet is fired still horizontally but with a different speed, it will still take the same time (0.5 s) to reach the ground.
7.5 meters
Don’t need to use 980j if you use the correct equations
Answer:
Does shadow cover the Earth or only a portion of it?
Explanation: