A weight watcher who normally weighs 400 N stands on top of a very tall ladder so she is one Earth radius above Earth's surface. How much is her weight there?
A) 0
B) 100 N
C) 200 N
D) 400 N
E) none of the above
Answer: B
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An electron moving in the direction of the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, the direction of the magnetic field in this region points in the direction of the
A) +z-axis. B) -z-axis. C) -x-axis. D) +y-axis. E) -y-axis.
The lowest tone to resonate in pipe of length L that is open at both ends is 200 Hz. Which one of the following frequencies will not resonate in the same pipe?
A) 200 Hz B) 400 Hz C) 600 Hz D) 800 Hz E) 900 Hz
The horizontal axis (X-axis) of the Hertzsprung-Russell diagram is labeled with _______________
Fill in the blank(s) with correct word
The speed of a wave is the same as the speed of the particles displaced by the wave
Indicate whether the statement is true or false