#6 - Lower frequencies correspond to <em>longer</em> wavelengths.
#7 - To change the pitch of a sound, you have to change its <em>frequency</em>.
Static friction keeps the car from skidding off the road and points toward the center of the curve. By Newton's second law, the car experiences
• net vertical force
F [normal] - F [weight] = 0
• net horizontal force
F [friction] = ma = mv²/r
where v is the tangential speed of the car.
It follows that
F [normal] = F [weight] = mg
and when static friction is maximized at the car's maximum speed,
F [friction] = µ F[normal] = 0.402 mg
Solve for v :
0.402 mg = mv²/r ⇒ v = √(0.402 g (93.5 m)) ≈ 19.2 m/s
Answer:
A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or another river that cannot carry away the supplied sediment.
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Answer:
The magnitude of Adam's displacement is 0 m
Explanation:
Given;
Adam's distance from his home to the mall, d₁ = 1100m
then, his distance from the mall back to his home, d₂ = 1100m
Adam's displacement is given by;
Displacement = final position - initial position
Adam's displacement = d₂ - d₁
Adam's displacement = 1100 m - 1100 m = 0 m
Therefore, the magnitude of Adam's displacement is 0 m
