given,
mass of bicyclist(m)=90Kg
centripetal acceleration(a)=1.5 m/s2
centripetal force(F)=ma= 90×1.5=145 N
C.
Explanation: Because mirrors are lighter, and they are easier than lenses to make perfectly smooth.
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C. A step-by-step process that takes time, and is essential for learning physics concepts.
<span>C. The filings will be clustered more densely where the field is weakest.</span>