Which of the following is a similarity between Frederick W. Taylor and Lillian Gilbreth?
a.They both developed time study.
b.They both strove to simplify work.
c.They both proposed giving workers longer work hours and fewer breaks.
d.They both used film cameras to analyze jobs.
Answer: b.They both strove to simplify work.
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The figures below represent interference fringes. The distances from the screen to the slits is the same for each figure, and the planes of the screen and the slits are parallel. Which figure(s) represent(s) slits with the smallest spacing d between the slits? The white spaces represent the interference maxima
a.
I.
b.
II.
c.
III.
d.
IV.
e.
V.
State Avogadro's hypothesis
What will be an ideal response?
Uncertainty Principle Using Momentum and Position: What is the minimum uncertainty in determining the position of an electron if the speed of the electron is 6.0 km/s within an accuracy of 0.0040%? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
A. 0.11 mm B. 0.15 mm C. 0.24 mm D. 0.34 mm E. 0.48 mm
A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a constant rate, and the child is observed to have a radial acceleration of 2.3 m/s2
How long does it take for the merry-go-round to make one revolution?