Answer:
Correct answer: V₀ = 10 m/s
Explanation:
Depending on time and acceleration, the distance formula is:
D = V₀t + a t²/2
in accordance with the given formula we conclude that the
initial velocity is V₀ = 10 m / s
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Answer:
a They both exhibit the Doppler effect.
Explanation:
When source of light or sound and the observer will move relative to each other then due to relative motion of them the frequency of light or sound that is observed by the observer is different from its actual frequency. This phenomenon is known as Doppler's effect.
So here the same characteristic that is exhibit by both is Doppler effect
apart from this
Light is transverse in nature while sound wave is longitudinal
Sound moves faster in water while light moves fastest in air
light do not requires any medium while sound requires medium to travel
so correct answer will be
a They both exhibit the Doppler effect.
The period of the pendulum is 8.2 s
Explanation:
The period of a simple pendulum is given by the equation:
![T=2\pi \sqrt{\frac{L}{g}}](https://tex.z-dn.net/?f=T%3D2%5Cpi%20%5Csqrt%7B%5Cfrac%7BL%7D%7Bg%7D%7D)
where
L is the length of the pendulum
g is the acceleration of gravity
T is the period
We notice that the period of a pendulum does not depend at all on its mass, but only on its length.
For the pendulum in this problem, we have
L = 16.8 m
and
(acceleration of gravity)
Therefore the period of this pendulum is
![T=2\pi \sqrt{\frac{16.8}{9.8}}=8.2 s](https://tex.z-dn.net/?f=T%3D2%5Cpi%20%5Csqrt%7B%5Cfrac%7B16.8%7D%7B9.8%7D%7D%3D8.2%20s)
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The sum of Potential Energy and Kinetic Energy is called Mechanical Energy
Answer:
C It will be closer to the mass of Vi–193.
Explanation:
The average atomic mass of vitellium will be closer to the mass of Vi–193.
From the geonormal abundance we can derive the average atomic mass or relative atomic mass of the compound.
Average atomic mass = sum of all the product of the mass of isotope x abundance of isotope
Average atomic mass = (10.861% x 187.9122) + (12.428% x 190.9047) + (76.11% x 192.8938)
Average atomic mass = 20.41 + 23.73 + 146.81 = 190.95amu