The force acting on a pendulum to bring it to its perpendicular resting point is called the restoring force. The restoring force
F, in Newtons, acting on a string pendulum is given by the formula F equals m g space sin open parentheses theta close parentheses where m is the mass of in kilograms of the pendulum's bob, g ≈ 9.8 meters per second per second is the acceleration due to gravity, and θ is the angle at which the pendulum is displaced from the perpendicular. What is the value of the restoring force when m = 0.9 kilograms and θ = 45°? If necessary, round the answer to the nearest tenth of a Newton.
1 answer:
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Answer: The thermal efficiency of the engine is 41.09 %.
Explanation:
Efficiency is the ratio of the useful work performed to the total energy expended or heat taken in.
Formula for thermal efficiency of engine is
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= heat rejected = 266.7 kJ
= heat extracted = 452.8 kJ
Putting in the values we get:
The thermal efficiency of the engine is 41.09 %.
Answer:
Explanation:
distance between two slit d =
d = 18.15 x 10⁻⁷ m
Let wave length of light λ
formula for position of first pair of bright spot
Tanθ = λ / d , λ is wave length of light and d is distance between two slit .
Tan 15.4 =
λ = Tan 15.4 x 18.15 x 10⁻⁷
=5 x 10⁻⁷ m
If θ be the position of next bright spot
Tanθ = 2 λ / d
=
=
θ = 28.4 degree .