A radio wave transmits 167 wm2 of power per unit area a
A radio wave transmits 16.7 W/m2 of power per unit area. A flat surface of area A is perpendicular to the direction of propagation of the wave. Assuming the surface is a perfect absorber, calculate the radiation pressure on it. nPa
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a spherical bubble rises from the bottom of a lake whose temperature is 5c at the bottom and 28c at the surface if the
a 40 kg girl standing at rest on the ice gives a 60 kg boy who is also standing at rest on the ice a shove after the
at one location on the earth the rms value of the magnetic field caused by solar radiation is 185 microt a calculate
a 5 kg ball and 10 kg ball approach eachother with a speed of 20 ms if they collide perfectly inelasticially the speed
a radio wave transmits 167 wm2 of power per unit area a flat surface of area a is perpendicular to the direction of
in 1965 arno penzias and robert wilson discovered the cosmic microwave radiation left over from the big bang expansion
assume the intensity of solar radiation incident on the cloud tops of the earth is 1 518 wm2 a taking the average
the eye is most sensitive to light having a frequency of 545 1014 hz which is in the greenndashyellow region of the
a seismographic station receives s and p waves from an earthquake separated in time by 168 s assume the waves have
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