What is the process used by living things to maintain an internal environment within a tolerable range?
a. metabolism
b. homeostasis
c. development
d. physiology
e. thermoregulation
b
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An ohm is equivalent to a(n)
A. volt/meter. B. coulomb/volt. C. ampere/coulomb. D. volt/ampere. E. ampere·coulomb.
In the proton-proton chain
a. no neutrinos are produced. b. energy is released because a helium nucleus has a greater mass than a hydrogen nucleus. c. no photons are produced. d. carbon serves as a catalyst for the nuclear reaction. e. energy is produced in the form of gamma rays and the velocity of the created nuclei.
In a double-slit experiment, the distance between the slits is 0.2 mm and the distance to the screen is 100 cm. What is the phase difference (in degrees) between the waves from the two slits arriving at a point 5 mm from the central maximum when the wavelength is 400 nm? (Convert your result so the angle is between 0 and 360°.)
A. 90° B. 180° C. 270° D. 360° E. 160°
How much heat must be removed from 456 g of water at 25.0°C to change it into ice at -10.0°C? The specific heat of ice is 2090 J/(kg K) and the latent heat of fusion of water is 33.5 × 104 J/kg
A) 105 kJ B) 153 kJ C) 57.3 kJ D) 47.7 kJ E) 210 kJ