A because its the only one that actually involves science
Yes. The main cause of polarization is by an external electric field. Polarization is characterized by an imbalance of charges where one end is more positive than the other end. When an electric field distorts the charges, there is a shift between the negative and positive poles. This causes the phenomenon called polarization.
0° C = 273.15 K
Notice that the K temp is 273.15 more than the C temp.
So, to get any Celsius temp, subtract 273.15 from the Kelvin temp.
#11: Impulse(I)=FΔt; Δt=T final - T initial/or rather given time
=4.16×10⁻⁴(1.84×10⁶)
<span> =7.65×10²Ns
</span>#12: Spring Force(F)=kx; k-spring constant
x-extension
by making k subject of the formula:
<span>spring constant(k)=F/x
</span> =3.92×10²/3.84×10⁻³
<span> =1.02×10*5N/m
</span>#13: Spring potential(U)= 1/2 kx²
= 1/2(9.33×10³)(4.95×10⁻²)²
<span> =1.14×10*1J
#14: Centripetal Force(Fc)=m(v²/r)
<span> =ma; v²/r=a
</span>
making m subject of formula:
m=Fc/a
=7.56×10³/6.14×10*-1
<span> =1.23×10*4kg
</span></span>#15: From definition of Fc, it can be noted that acceleration a=v²/r
making v(speed) subject of formula;
<span> v=√ar
</span> =√4.92×10⁻¹ (2.43×10¹)
<span> =3.46×10*0m/s
Hope this helps!</span>
