The typical near point distance for humans is
A. 5 cm
B. 15 cm
C. 25 cm
D. 35 cm
Answer: C. 25 cm
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The planet Mars reaches its closest point to the Earth approximately every
A) 26 months B) 12 months C) 6 months D) 36 months
About how long does light take to cross the Milky Way?
A.) About a month. B.) About four years. C.) About 26,000 years. D.) About 100,000 years. E.) Millions of years.
A common pulley acts similar to a
A) hydraulic press. B) gear. C) common lever. D) tension producer.
You are given a copper bar of dimensions 3 cm × 5 cm × 8 cm and asked to attach leads to it in order to make a resistor
(a) If you want to achieve the SMALLEST possible resistance, you should attach the leads to the opposite faces that measure A. 3 cm × 5 cm. B) 3 cm × 8 cm. C) 5 cm × 8 cm. D) Any pair of faces produces the same resistance. (b) If you want to achieve the LARGEST possible resistance, you should attach the leads to the opposite faces that measure A. 3 cm × 5 cm. B) 3 cm × 8 cm. C) 5 cm × 8 cm. D) Any pair of faces produces the same resistance.