Answer: The correct answer is 87..5 m/s.
Explanation:
The expression for the relation between the speed of the wave and the frequency of the wave is as follows;
Here, v is the speed of the wave, f is the frequency and is the wavelength of the wave.
It is given in the problem that a wave has a frequency of 250 Hz and a wavelength of 0.35 m.
Put f=250 Hz and = 0.35 in the above expression.
Therefore, the wave speed of a wave is 87.5 m/s.
Einstein's energy mass equivalence relation say that if the whole given mass is converted to energy then it would be
where
m = mass in kg
c = speed of light in m/s
this is the origination of quantum physics and by this formula we can relate the dual nature of light and particle
So correct relation above will be
This question involves the concepts of th magnetic field and current.
The magnetic field created by the current at the house is "6.75 x 10⁻⁷ T".
<h3>Magnetic Field</h3>The magnetic field created by a current carrying wire can be given by the following formula:
where,
B = 6.75 x 10⁻⁷ T
Learn more about magnetic field here:
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Answer:
B) 2g
Explanation:
<u>Given the following data;</u>
Velocity, v = 14m/s
Radius, r = 10m
To find the centripetal acceleration;
Substituting into the equation, we have;
Acceleration, a = 19.6m/s²
In terms of acceleration due to gravity, g = 9.8m/s²
We would divide by g;
Acceleration, a = 19.6/9.8 = 2
Hence, centripetal acceleration = 2g
Therefore, the rider's centripetal acceleration in terms of g, the acceleration due to gravity is 2g.