A series circuit consists of ac source, a 90-? resistor, a 0.80-H inductor, and an 80-?F capacitor. The frequency of the source is adjusted so that the capacitive reactance is equal to twice the inductive reactance

What is the frequency of the source?
A) 13 Hz B) 14 Hz C) 17 Hz D) 19 Hz E) 16 Hz


B

Physics & Space Science

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Energy Conservation With Conservative Forces: A 1500-kg car moving at 25 m/s hits an initially uncompressed horizontal ideal spring with spring constant (force constant) of 2.0 × 106 N/m. What is the maximum distance the spring compresses?

A. 0.17 m B. 0.34 m C. 0.51 m D. 0.68 m

Physics & Space Science

The diameter of an atomic nucleus is about a hundredth of a trillionth of a meter. In powers of 10, this is

A) 10-17 m. B) 10-11 m. C) 10-14 m. D) 10-15 m. E) 10-10 m.

Physics & Space Science

All heavy elements are made during supernova explosions

Indicate whether the statement is true or false

Physics & Space Science

Which of the following is not one of the five major divisions of chemistry?

a. Nuclear chemistry b. Physical chemistry c. Biochemistry d. Inorganic chemistry

Physics & Space Science