HELP!! Explain why a more streamlined car generally will have a better fuel economy than a bulkier car with the same mass.
2 answers:
Answer: A streamlined car will be more aerodynamic causing it be more fuel efficient.
Explanation: Aerodynamic-of or having a shape which reduces the drag from air moving past. A bulkier car will be less aerodynamic meaning that the air that hits it won't go around but push it back causing it to use more power which causes it to use more fuel. A streamlined car will allow air to flow around and over the car, a streamlined car will usually be less like a box and have more curves.
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Answer:
The frequency of the coil is 7.07 Hz
Explanation:
Given;
number of turn of the coil, N = 200 turn
area of the coil, A = 300 cm² = 0.03 m²
magnitude of magnetic field, B = 30 mT = 0.03 T
maximum value of induced emf, E = 8 V
The maximum induced emf in the coil is given by;
E = NBAω
E = NBA(2πf)
where;
f is the frequency of the coil
Therefore, the frequency of the coil is 7.07 Hz