A needle in a compass in a magnetic field experiences
A. a net force.
B. a torque.
C. both of these
D. none of the above
Answer: B
You might also like to view...
For an oil reserve to exist, oil and gas must be held underground in the reservoir rock by "traps". In the following what are the underground traps?
a. Anticline trap b. Fault trap c. Salt-dome trap d. Stratigraphic trap e. All of the above
The World Meteorological Organization
A) is under the auspices of the European Union. B) has about 50 member nations. C) transmits its data from three regional centers. D) does not have any weather sensors for oceans.
Under most circumstances the density ________ with increasing altitude
A) decreases B) increases C) remains constant
What are the arguments for and against genetically modified crops? Discuss the scientific, economic, and political issues
What will be an ideal response?