A 160 lb person has a mass of 160/32 = 5 slugs. A 160 lb person steps into an elevator and stands on a bathroom scale. Determine the scale reading for the given scenarios. After moving downwards at constant speed, the elevator is slowing down at 2 m/s2 as it is coming to rest
a. 150 lb c. 170 lb
b. 160 lb d. none of the above
C
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Uncertainty Principle Using Momentum and Position: If an electron is determined to be at x = 2.000 cm ± 0.0010 cm, what is the minimum uncertainty in the x component of its velocity? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
Fill in the blank(s) with the appropriate word(s).
Why does the Earth's atmosphere contain much more nitrogen than hydrogen?
What will be an ideal response?
In a mass spectrometer, a singly-charged particle (charge e) has a speed of 1.0 × 106 m/s and enters a uniform magnetic field of 0.20 T
The radius of the circular orbit of the particle is 0.020 m. What is the mass of this particle? (e = 1.60 × 10-19 C) A) 3.2 × 10-28 kg B) 6.4 × 10-28 kg C) 1.7 × 10-27 kg D) 4.5 × 10-27 kg E) 3.1 × 10-31 kg
A boat loaded with scrap iron floats in a swimming pool. When the iron is thrown overboard, the pool level will
A) rise. B) fall. C) remain unchanged.