The percentage of mechanical energy of the oscillator lost in each cycle is 5.91 %.
The formula for mechanical energy in an oscillator is given by
E = 1/2 kA²
It is the sum of elastic potential energy and kinetic energy.
Amplitude is nothing but the maximum displacement moved by a point on vibrating body.
It is given that the amplitude A decreases by 3%, then
(E₂ - E₁) / E₁ = [1/2 k (A₂²- A₁²)] /(1/2 k A₁²) = (A₂²- A₁²)/ A₁² = (97² - 100²)/ 100²
⇒ 5.91% of the mechanical energy is lost in each cycle.
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Answer:
Angular velocity of an ultra centrifuge is 17146.42 rad/s.
Explanation:
Given that,
Acceleration of an ultra centrifuge, 
Distance from axis, r = 2 cm = 0.02 m
We need to find the angular speed. We know that the relation between angular speed and angular acceleration is given by :
So, the angular velocity of an ultra centrifuge is 17146.42 rad/s.
Answer:
Chemical and Biological weathering.
Explanation:
Processes that break down and weaken earth minerals are known as weathering. Over time, this can lead to erosion, in which huge sections of rock and stone are carried away, changing landscapes. Physical weathering alters the material structure of rocks, while chemical weathering alters their chemical structure.
