The way you described it, a small change will cause a bigger change.
That's Positive feedback.
The effective mass of the system is 12 kg.
<u>Explanation:</u>
- The effective mass of the system is given by the expression,
= mₓ + 1/2 m₁ + 2/5 m₂
- In the above equations the subscript x denotes block B and the subscript 2 denotes the mass of the solid sphere and the subscript 1 denotes the pulley.
- Expressing the above functions with the data given below. we have,
= 6 kg + 1/2 (4 kg) + 2/5 (10 kg)
= 12 kg.
with the findings above we can conclude that the effective mass of the system is 12 kg
Explanation:
time period= 1/frequency.
= 1/50 = 0.02 second.
hope this helps you.
Explanation:
Given
Refractive Index 

angle of incident
Light originates in the medium of higher refractive index
Let
and
be the incident and refraction angles respectively thus according to snell's law




(b)Ray originates from lighter medium



Answer:
D. 12.4 m
Explanation:
Given that,
The initial velocity of the ball, u = 18 m/s
The angle at which the ball is projected, θ = 60°
The maximum height of the ball is given by the formula
h = u² sin²θ/2g m
Where,
g - acceleration due to gravity. (9.8 m/s)
Substituting the values in the above equation
h = 18² · sin²60 / 2 x 9.8
= 18² x 0.75 / 2 x 9.8
= 12.4 m
Hence, the maximum height of the ball attained, h = 12.4 m