Scientific form = 6.5 x 109.
It is 10.20 m from the ground.
<u>Explanation:</u>
<u>Given:</u>
m = 0.5 kg
PE = 50 J
We know that the Potential energy is calculated by the formula:
![P. E = m \times g \times h](https://tex.z-dn.net/?f=P.%20E%20%3D%20m%20%5Ctimes%20g%20%5Ctimes%20h)
where m is the is mass in kg; g is acceleration due to gravity which is 9.8 m/s and h is height in meters.
PE is the Potential Energy.
Potential Energy is the amount of energy stored when an object is stationary.
Here, if we substitute the values in the formula, we get
![P. E = m \times g \times h](https://tex.z-dn.net/?f=P.%20E%20%3D%20m%20%5Ctimes%20g%20%5Ctimes%20h)
50 = 0.5 × 9.8 × h
50 = 4.9 × h
![h = \frac {50} {4.9}](https://tex.z-dn.net/?f=h%20%3D%20%5Cfrac%20%7B50%7D%20%7B4.9%7D)
h = 10.20 m
I believe that it is electric field
The answer is :78 I think
The coefficient of friction between the road and the car's tire is determined as 0.78.
<h3>Acceleration of the car</h3>
The acceleration of the car is calculated as follows;
v² = u² - 2as
0 = u² - 2as
a = u²/2s
where;
- u is the initial velocity = 97 km/h = 26.94 m/s
a = (26.94)²/(2 x 47)
a = 7.72 m/s²
<h3>Coefficient of friction</h3>
μ = a/g
μ = (7.72)/9.8
μ = 0.78
Learn more about coefficient of friction here: brainly.com/question/14121363
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