The magnetic fields of Earth and several other planets are produced by _____. magnetic substances conductive materials in motion
2 answers:
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Answer:
Explanation:
given,
number of cycle complete (f) = 116 cycles per minute
wavelength observed at 11 m in 1.5 m.
v = 7.33 m/s
The wavelength of the wave is equal to
Answer:
is the minimum gap between the slabs
Explanation:
Given:
- length of the concrete highway,
- coefficient of thermal expansion,
- range of temperature variation,
<u>Now form the equation of thermal expansion:</u>
Since each slab of the highway expands by the above length so the minimum gap between the slabs to prevent buckling:
is the minimum gap between the slabs