Answer:
70
Step-by-step explanation:
m^4 - 11
when m = 3
3^4 - 11
81 - 11
70
The height of the water tower is found to be 54.66 meters.
<h3>What is acceleration due to gravity?</h3>
A free-falling object is one that is falling solely due to gravity.
Some key features regarding the acceleration due to gravity are-
- A free-falling component has a downward acceleration of 9.8 m/s/s (on Earth).
- This magnitude for the acceleration of a free-falling object is so significant that it has its own name.
- The acceleration of gravity is the acceleration of any object moving solely under the influence of gravity.
- In fact, the acceleration of gravity is so important quantity that scientists have a special symbol to represent it - the symbol g.
- The most precise numerical value for gravity's acceleration is 9.8 m/s/s.
Now, according to the question;
It takes a watermelon 3.34 sec to reach the ground.
Use the equation of motion in straight line.
D = (1/2) x (gravity) x (time)²
D is the height of the water tower.
= (1/2) x (9.8 m/s²) x (3.34 sec)²
= (4.9 m/s²) x (11.16 sec²)
D = 54.66 meters.
Thus, the height of the water tower is estimated as 54.66 meters.
To know more about acceleration due to gravity, here
brainly.com/question/88039
#SPJ4
Answer:
4x - y = 16
Step-by-step explanation:
y = 2(x – 3)2 - 4
When written in standard form, this will be the answer --->
4x - y = 16
Hello :
by idetity : 1+cos(2a) = 2cos²(a)
let : a = <span>θ/2
1+cos(2×</span>θ/2)=2cos²(θ/2)
1+cos(θ) = 2cos²(θ/2)
solve : 2 cos^2 (θ/2) - 3 cos(θ) = 0 ......(1)
(1) : 1+cos(θ)-3 cos(θ) =0
2cos(θ) = 1
cos(θ) = 1/2
in : [0, 2π<span>[
</span>( θ = π/3) or (θ = 5π/3)