What is the impedance at 1500 Hz if a 100-? resistor, 20-mH coil, and 1.0-?F capacitor are connected in series?

A) 0.19 k? B) 82 ? C) 0.13 k? D) 0.11 k?


C

Physics & Space Science

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The intensity of radiation reaching the Earth from the Sun is 1350 W/m2 . The Earth's radius is 6.4 × 10^6 m. How big a force does this radiation exert on the Earth? (Assume it is all absorbed.)

a. 5.8 × 10^8 N b. 1.2 × 10^9 N c. 2.3 × 10^9 N d. 4.6 × 10^9 N e. 1.7 × 10^17 N

Physics & Space Science

The apparent path that the Sun traces annually along the celestial sphere is called the

a. ecliptic. b. heliosphere. c. solstice circle. d. celestial prime meridian.

Physics & Space Science

Geology's best tool for establishing absolute (numerical) geologic time is called ______________ dating

Fill in the blank(s) with correct word

Physics & Space Science

A 5.0-kg mass is suspended by a string from the ceiling of an elevator that is moving upward with a speed which is decreasing at a constant rate of 2.0 m/s in each second. What is the tension in the string supporting the mass?

a. 49 N b. 39 N c. 59 N d. 10 N e. 42 N

Physics & Space Science