A rod with a positive charge is brought near a positively charged pith ball. The pith ball is suspended from an insulating string. The pith ball
A. will be attracted by the rod
B. will be repelled by the rod
C. will not be affected by the rod
B. will be repelled by the rod
You might also like to view...
The acceleration of gravity on Earth is approximately 10 m/s2 (more precisely, 9.8 m/s2). If you drop a rock from a tall building, about how fast will it be falling after 3 seconds?
A) 30 m/s B) 10 m/s C) 30 m/s2 D) 10 m/s2 E) 20 m/s
Which of the following processes will increase the mass of the system?
A) A rock is made to move faster and faster. B) Two magnets that are initially held together by their magnetic forces are separated. C) Both of the above. D) A cup of coffee is heated. E) All of the above.
Unstable conditions and stormy weather can be expected with the passage of a
A) low pressure system. B) high pressure system.
The determining factor in the stages a star will progress through from birth to death is its
A) mass. B) temperature. C) composition. D) relative density.