One fundamental difference between a particle and its antiparticle is the

A. number of quarks contained in each particle.
B. charge, if the particle has a charge.
C. spin.
D. mass.


Answer: B

Physics & Space Science

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Series/Parallel Circuits: For the circuit shown in the figure, the current in the 8.0-? resistor is 0.50A. What is the current in the 2.0-? resistor? All the numbers shown are accurate to two significant figures.

A. 2.25 A B. 0.75 A C. 4.5 A D. 9.5 A E. 6.4 A

Physics & Space Science

A fancy sports car passes Big Ben at a speed of 0.600 c. What time interval will the driver measure for a one-second interval on the large clock?

a. 1.67 s b. 0.800 s c. 1.25 s d. 0.600 s e. 1.00 s

Physics & Space Science

Entropy is a measure of

A) messiness. B) disorder. C) both of the above D) none of the above

Physics & Space Science

A 1.0-kg block is pushed up a rough 22° inclined plane by a force of 7.0 N acting parallel to the incline. The acceleration of the block is 1.4 m/s2 up the incline. Determine the magnitude of the force of friction acting on the block.

A. 1.9 N B. 2.2 N C. 1.3 N D. 1.6 N E. 3.3 N

Physics & Space Science