You and a friend can share the same space and time measurements when
A) you are side by side at rest.
B) you both are side by side moving at constant velocity.
C) either of these
D) none of these
Answer: C
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Two billiard balls having the same mass roll toward each other at the same speed. What is the net momentum of the two-ball system?
A) 0 kg?m/s B) 10 kg?m/s C) not enough information
A particle (mass = 6.7 × 10?27 kg, charge = 3.2 × 10?19 C) moves along the positive x axis with a speed of 4.8 × 105 m/s. It enters a region of uniform electric field parallel to its motion and comes to rest after moving 2.0 m into the field. What is the magnitude of the electric field?
A. 2.0 kN/C B. 1.5 kN/C C. 1.2 kN/C D. 3.5 kN/C E. 2.4 kN/C
An increase of 40 dB increases the sound intensity by a factor of
a. 1000. b. 40000. c. 10000. d. 4000.
The level at which stream discharge can begin to spill out of the channel into the surrounding area
What will be an ideal response?