Answer:
.7934
Explanation:
Acceleration = change in velocity / change in time
A = 10.98 / 13.84
A = .7934
<u>Opinion on Water Conservation </u>
<u> Fresh water sources is always increasing because of population and industry gowth, Even though water eventually returns to Earth through the water cycle, it's not always returned to the same spot, or in the same quantity and quality. By reducing the amount of water we use, we can better protect against future drought years. Saving water can help others with needs of it </u>
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Power is calculated by dividing the work done with the time interval of the motion. Work, on the other hand, is force times the distance traveled. Therefore, we can calculate as follows:
60.0 mi/h = 26.82 m/s
The car accelerates at:
<span>v2 = v1 + at </span>
<span>a = [v2 - v1] / t </span>
<span>a = 1.49m/s² </span>
<span>The distance it travels at this acceleration in 15.0 s is: </span>
<span>d = [v1 + v2] t / 2 </span>
<span>d = (0 + 22.4m/s)15.0s / 2 </span>
<span>d = 168m </span>
<span>P = m (a)(d) / t </span>
<span>= (1300kg) (1.49m/s²) (168m) / 15.0s </span>
<span>= 22,700 W</span>
The orbiting spacecraft are put in the atmosphere to gain information about the weather conditions, for satellite communications, for measuring changes in the atmosphere. These crafts are put in the outer atmosphere, where the atmosphere is very thin and the craft can stay its specified orbit.
The height of the flare relative to ground is 202.3 m. <em>This is the sum of height reached by the flare and the 3 m platform above the ground.</em>
<h3>
Maximum height reached by the flare</h3>
The maximum height reached by the flare is determined from the principle of conservation of energy as shown below;
P.E = K.E
mgh = ¹/₂mv²
gh = ¹/₂v²
h = (v²)/(2g)
where;
- v is the speed = 225 km/h = 62.5 m/s
h = (62.5)²/(2 x 9.8)
h = 199.3 m
<h3>Height of the flare relative to ground</h3>
H = 199.3 + 3
H = 202.3 m
Thus, the height of the flare relative to ground is 202.3 m. This is the sum of height reached by the flare and the 3 m platform above the ground.
Learn more about maximum height here: brainly.com/question/12446886