A 0.150-kg air track cart is attached to an ideal spring with a spring constant of 3.58 N/m and undergoes simple harmonic oscillations. What is the period of the oscillations?
A) 2.57 s
B) 0.527 s
C) 0.263 s
D) 1.14 s
E) 1.29 s
E
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Two wires, each carrying current I, are antiparallel to each other. The two wires
A. repel each other. B. attract each other. C. are not affected by each other.
When atoms of an element are heated enough that they lose electrons, their emission and absorption spectra change
Indicate whether the statement is true or false
When an unstable O nucleus undergoes beta decay, the nucleus formed is that of
a. Oxygen. b. Neon. c. Nitrogen. d. Carbon. e. Fluorine.
An electron inside a hydrogen atom is confined to within a space of about 0.12 nm
What is the uncertainty in this electron's speed? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s) A) 3.1 × 105 m/s B) 3.1 km/s C) 4.8 × 106 m/s D) 4.8 m/s E) 9.6 × 105 m/s