Answer:
Acceleration
Explanation:
Its speed or velocity change
Answer:
B) 0.3Hz
Explanation:
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Density is defined as [mass] / [volume] .
The only choice listed with those physical dimensions is 'd' .
Answer:
C) Use a battery with more voltage.
Explanation:
The equation for the magnetic field around a coil is given by,
B = μ₀NI
where,
B = Magnetic flux density
μ₀ = permeability
N = number of turns per meter
I = Current in the wire
So when using a higher voltage battery, more current passes through the battery as resistance of the wire remains the same.