We can assume that all<span> gravitational potential energy is converted into
kinetic energy of the object.</span><span>
<span>Hence, </span>GPE = KE
Where GPE is gravitational Potential Energy (J)
and KE is Kinetic Energy (J)
GPE = mgh
<span>Where, m is the mass of the object (kg), g is acceleration due to gravity (9.8 m s</span></span>⁻<span>²) and h is the height to the<span> object from ground (m).</span></span><span>
m = 0.18 kg
g = 9.8 m s</span>⁻²<span>
h = 45 m
Hence,
GPE = 0.18 kg x 9.8 m s</span>⁻² x 45 m<span>
= 79.38 J
≈ 79 J
<span>Hence, </span>KE = GPE = 79 J
<span>Hence, the
answer is '79 joules'.</span></span>
Answer:
= 239.311g
Explanation:
atomic mass of C = 12.001g
atomic mass of H = 1.008g
atomic mass of N = 14.0067g
atomic mass of O = 15.99g
Solution:
![C_{13}](https://tex.z-dn.net/?f=C_%7B13%7D)
![H_{21}](https://tex.z-dn.net/?f=H_%7B21%7D)
![N_{}](https://tex.z-dn.net/?f=N_%7B%7D)
![O_{3}](https://tex.z-dn.net/?f=O_%7B3%7D)
= 13 (12.001) + 21(1.008) + 14.0067 + 3 (15.99)
= 156 + 21 + 14+ 48
= 239.311g
Answer:
24.58 m/s
Explanation:
Given that,
Speed of an object = 55 mph
We need to find the equivalent unit in m/s
We know that,
1 mile = 1609 m
1 hour = 3600 s
So,
![55\ mph=\dfrac{55\times 1609\ m}{3600\ s}\\\\=24.58\ m/s](https://tex.z-dn.net/?f=55%5C%20mph%3D%5Cdfrac%7B55%5Ctimes%201609%5C%20m%7D%7B3600%5C%20s%7D%5C%5C%5C%5C%3D24.58%5C%20m%2Fs)
So, the required speed is 24.58 m/s.
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Answer:
Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes
Explanation:
If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation.
Brain-List?