"People who take issue with control of population do not understand that if it is not done in a graceful way, nature will do it in a brutal fashion."
What will be an ideal response?
This quote is attributed to Prof. H. Kendall of the Union of Concerned
Scientists. Bartlett also makes the point that population will not exceed limits in the long
term. If humans do not voluntarily reduce population nature will do so involuntarily, and we
may not like Nature's way of doing it. Kendall refers indirectly here to the four horsemen
of the Apocalypse—war, pestilence, famine, and death.
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An aircraft undergoes a constant acceleration of 11 m/s2 for 12 seconds. The distance traveled is __________
Fill in the blank(s) with correct word
A 29.0-pm-wavelength photon is scattered by a stationary electron. What is the maximum energy loss the photon can have?
(melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 4.0 keV B) 6.1 keV C) 10 keV D) 12 keV E) 15 keV
A 15.0-m rope is pulled taut with a tension of 140 N. It takes 0.545 s for a wave to propagate along the rope. What is the mass of the rope?
A) 1.67 kg B) 2.10 kg C) 2.77 kg D) 5.09 kg E) 3.19 kg
Projectile Motion: A projectile is fired from ground level on a horizontal plain. If the initial speed of the projectile is now doubled, and we neglect air resistance,
A. its range will be increased by 
.
B. its range will double.
C. its range will be decreased by a factor of two.
D. its range will quadruple.
E. its range will decrease by a factor of four.