A physicist and a chemist are playing tug-of-war. For a certain length of time during the game, the participants are essentially at rest. During this time, each person pulls on the rope (which can be treated as an ideal string) with a force of 350 N. What is the tension on the rope?
A. 700 N
B. 350 N
C. 175 N
D. Other (specify)
B. 350 N
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Exhibit 17-2
The figure below shows a sine wave on a string at one instant of time.
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Use this exhibit to answer the following question(s).
Refer to . Which of the graphs below shows a wave where the frequency and wave velocity are both doubled?
a.
The left-hand end of a glass rod is ground to a spherical surface. The glass has index of refraction 1.50. A small object 4.00 mm tall is placed in the axis of the rod, 11.0 cm to the left of the vertex of the spherical surface
The image is formed in the rod, 17.0 cm to the right of the vertex. (a) What is the magnitude of the radius of curvature of the spherical surface at the end of the rod? (b) What is the height of the image?
13.0 g of water in a 3.25-L pressure vessel is heated to 480°C. What is the pressure inside the container? (R = 0.082 L/atm/mol/K, one mole of water has a mass of 18 grams)
a. 24.7 atm b. 13.7 atm c. 8.75 atm d. 15.7 atm e. 19.8 atm
The sidereal drive of a telescope mounting must turn the telescope
a. southward about the polar axis. b. eastward about the polar axis. c. westward about the polar axis. d. northward about the polar axis. e. none of the above