- Wavelength is represented by lambda(
)
- C is speed of light in air.
- v is the frequency.
It has unit as meter(m)
Before being engulfed, matter that is pulled into a black hole should become very hot and emit _____.
2 answers:
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1. Ideal Mechanical Advantage (IMA): 9
Explanation:
For a wheel and axle system like the steering wheel, the IMA is given by:
where
is the radius of the wheel
is the radius of the axle
For the steering wheel of the problem, we see that and
, so the IMA is
2. Efficiency: 88.9%
Explanation:
The efficiency of a system is defined as the ratio between the AMA (actual mechanical advantage) and the IMA:
In this problem, AMA=8 and IMA=9, so the efficiency is