Assuming you are sitting still as you take this quiz, how would you draw your own worldline on a spacetime diagram?
A) a straight, vertical line
B) You would not have a worldline because you are not moving.
C) a straight, horizontal line
D) a diagonal line
A) a straight, vertical line
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A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a current of 300 mA is maintained. A wire carrying 12 A is inserted along the axis of the solenoid. What is the magnitude of the magnetic field at a point 2.0 cm from the axis?
a. 0.41 mT b. 0.48 mT c. 0.38 mT d. 0.56 mT e. 0.24 mT
A 70-kg stunt artist rides in a rocket sled which slides along a flat inclined surface. At an instant when the sled's acceleration has a horizontal component of 6.0 m/s2 and a downward component of 2.8 m/s2, what is the magnitude of the force on the rider by the sled?
A. 0.83 kN B. 0.98 kN C. 0.65 kN D. 0.68 kN E. 0.72 kN
Visual design is the first thing you need to determine when planning a website.
Answer the following statement true (T) or false (F)
Hadrons are divided into two subgroups called
A) baryons and leptons. B) leptons and mesons. C) mesons and baryons. D) nucleons and gauge bosons. E) mesons and gauge bosons.