A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. What is the normal force exerted by the seat of the car on a 60.0-kg passenger when the car is at the top of the bump?
A) 200 N
B) 389 N
C) 789 N
D) 489 N
E) 589 N
B
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The speed of sound in the air inside a 0.640-m long gas column is 340 m/s. What is the fundamental resonant frequency of this air column if it is (a) open at one end and closed at the other end? (b) open at both ends?
What will be an ideal response?
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Indicate whether the statement is true or false
A 12 mF capacitor is connected in series with a 4 mF capacitor, the combination being connected across a 6 V power supply. The charge on the 12 mF capacitor is
A) 24 mC. B) 12 mC. C) 18 mC. D) 72 mC. E) 36 mC.
If the measured momentum of an electron is 3.6 × 10^?27 kg?m/s with an uncertainty of 2.6 × 10^?29 kg?m/s, what is the minimum uncertainty in the position? (h = 6.63 × 10^?34 J?s)
a. 1.5E–8 m b. 2.0E–6 m c. 2.6E–5 m d. 2.9E–6 m e. 7.2E–3 m