As kmoefgthdyfjkhyutgfrdescfgvh
Answer:
a = 7.80 m/s²
Explanation:
given,
μs = 0.61
μk = 0.3
F = 49 N
we know,
F = μs m g
now when the block start moving
a = 7.80 m/s²
The EMF induced in the second coil is 43 Volts.
Michael Faraday was the first to discover electromagnetic induction back in the 1830s. Faraday discovered that moving a permanent magnet in and out of a coil or a single loop of wire caused an electromotive force, or EMF—otherwise known as a voltage—to be produced.
Changing magnetic flux results in varied currents flowing through the coil, which in turn generates its own magnetic field. This self-induced EMF opposes the change that is creating it, and the stronger the opposing EMF is, the faster the rate at which the current is changing. According to Lenz's law, this self-induced EMF will oppose the change in current in the coil, and because of its orientation, it is typically referred to as a back-EMF.
To learn more about EMF please visit-
brainly.com/question/15121836
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See this. I hope you find your answer
By definition we have that the linear moment is
p = m * v
Where
m = mass
v = speed.
Clearing the mass we have
m = p / v
Substituting the values
m= (13,300 kgm/s)/(14 m/s)=950Kg
the mass of the car is 950 Kg
