a box weighing 155 N is pushed horizontally down the hall at constant velocity. the applied force is 83 n what is the coefficien
1 answer:
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Explanation:
It is given that,
Wavelength,
Wavelength,
We need to find the frequencies from corresponding wavelengths. The frequency of the light is given by :
c is the speed of light
Frequency 1,
Frequency 2,
Hence, this is the required solution.
Answer: electrons pass through a cross section of the wire each second.
Explanation:
According to mole concept:
1 mole of an atom contains number of particles.
Given : Charge on 1 electron =
Charge on 1 mole of electrons =
To calculate the charge passed we use the equation:
where,
I = current passed = 1 A
q = total charge = ?
t = time required = 1 sec
Putting values in above equation, we get:
When 96500C of electricity is passed , the electrons passed =
1 C of electricity is passed , the electrons passed =
Hence, electrons pass through a cross section of the wire each second.