Answer:
No, it will not and this has a historical importance. The reason is that transformers work via induction of electrical forces by changes in magnetic fields, so the constat fields produced by dc currents won't work at all
Explanation:
Since the mass is moving in a horizontal circle, we do not look at gravity, tension in string or weight of the mass.
<em>
Time period for one cycle around circle = T = 0.42 seconds</em>
<em>Tangential Velocity or speed of the mass = </em>
<em> tangential distance traveled in 1 cycle or revolution / time period</em>
= circumference of circle / time period
<em> = 2 π radius / T = 2 π 1 meter / 0.42 sec </em>
<em> = 14.96 m/s</em>
Explanation:
It is given that,
Wavelength of a beam of light in vacuum, 
(a) Let v is the speed of light in a liquid whose index of refraction at this wavelength is 1.56.
We know that,
Refractive index,
(b) The wavelength of light in material,
Let 
is the wavelength of these waves in the liquid. So,
Hence, this is the required solution.
Answer:
7.46 J/kg/K
Explanation:
The heat absorbed or lost is:
q = mCΔT
where m is the mass, C is the heat capacity, and ΔT is the change in temperature.
Given q = 15.0 J, m = 0.201 kg, and ΔT = 10.0 °C:
15.0 J = (0.201 kg) C (10.0 °C)
C = 7.46 J/kg/°C
Which is the same as 7.46 J/kg/K.
