More massive white dwarfs are smaller than less massive white dwarfs

Indicate whether the statement is true or false


TRUE

Physics & Space Science

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Which of these are good conductors?

A) feathers. B) wood. C) snow. D) all the above E) none of the above

Physics & Space Science

Power: A series circuit has a 100-? resistor, 4.00-mH inductor and a 0.100-?F capacitor connected across a 120-V rms ac source at the resonance frequency. What is the power dissipated by the circuit?

A. 100 W B. 120 W C. 144 W D. 160 W E. 45.8 W

Physics & Space Science

What is the magnetic force on a 2.0-m length of (straight) wire carrying a current of 30 A in a region where a uniform magnetic field has a magnitude of 55 mT and is directed at an angle of 20° away from the wire?

A. 1.5 N B. 1.3 N C. 1.1 N D. 1.7 N E. 3.1 N

Physics & Space Science

How old is Earth, according to the vast majority of scientists?

A) a few thousand years B) about 100 billion years C) a few billion years D) about a billion years E) a few million years

Physics & Space Science