Induced electric and magnetic fields produce
A) stronger electric or magnetic field.
B) higher voltages produced by Faraday induction.
C) both of these
D) none of the above
Answer: D
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Which of the following best explains why sweating is important to humans in maintaining suitable body temperature?
A) Functioning of the sweat gland absorbs energy that otherwise would go into heating the body. B) The high specific heat of water on the skin absorbs heat from the body. C) Evaporation of moisture from the skin extracts heat from the body. D) Moisture on the skin increases thermal conductivity, thereby allowing heat to flow out of the body more effectively.
The spring tide can occur at either ________ or ________ phases of the Moon
Fill in the blank(s) with correct word
The rate of flow of electric charge is __________
Fill in the blank(s) with correct word
Consider a camera with a 20. cm diameter lens recording images at 600. nm wavelength
(a) What is the angular resolution limit? (b) What is the minimum sized features which can be resolved on Mars (at a distance of 9.0 × 107 km) with this lens?