Answer:
C
Explanation:
If the theory were to be proved you you need to repeat the experiment over and over again so that way you can prove that it is true wuth the same results.
Answer:
People depend upon plants to satisfy such basic human needs as food, clothing, shelter, and health care. These needs are growing rapidly because of a growing world population, increasing incomes, and urbanization . Plants provide food directly, of course, and also feed livestock that is then consumed itself.
Answer:
Acceleration of the car is
.
Explanation:
It is given that,
Initial speed of the car, u = 29 m/s
Finally it reaches a speed of, v = 34 m/s
Distance, d = 110 m
We need to find the acceleration of the car as it speed up. It can be calculated using third law of motion as :
![v^2-u^2=2ad](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2ad)
![a=\dfrac{v^2-u^2}{2d}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7Bv%5E2-u%5E2%7D%7B2d%7D)
![a=\dfrac{(34)^2-(29)^2}{2\times 110}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B%2834%29%5E2-%2829%29%5E2%7D%7B2%5Ctimes%20110%7D)
![a=1.43\ m/s^2](https://tex.z-dn.net/?f=a%3D1.43%5C%20m%2Fs%5E2)
So, the acceleration of the car as it speeds up is
. Hence, this is the required solution.
<h3><u>Answer;</u></h3>
= 20.436 seconds
<h3><u>Explanation;</u></h3>
Speed = Distance × time
Therefore;
Time = Distance/speed
Distance = 7.50 m, speed = 0.367 m/s
Time = 7.50/0.367
<u>= 20.436 seconds </u>