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 magnitude of the hiker’s displacement is 2.96 km
Explanation:
Let the initial displacement of the hiker, = x = 2km
the final displacement of the hiker, = y = 1.4 km
The resultant of the two vectors, According to Pythagorean theorem is the vector sum of the two vectors.
R' = x' + y'
Check the image uploaded for solution;
Answer:
0.5 eV
Explanation:
= Initial potential energy =
= Final potential energy
= Initial width
= Final width =
Energy of an electron in a one-dimensional trap is given by
From the equation we get
So,
The ground state energy will be 0.5 eV