Salt water has greater density than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force exerted on the boat by the water greater?
A) in salt water
B) in fresh water
C) The buoyant force is the same in both cases.
C
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Standing Waves on a String: Find the first three harmonics of a string of linear mass density 2.00 g/m and length 0.600 m when the tension in it is 50.0 N.
A. 132 Hz, 264 Hz, 395 Hz B. 66 Hz, 132 Hz, 198 Hz C. 264 Hz, 528 Hz, 792 Hz D. None of these
A difference between linear momentum and angular momentum involves
A) a radial distance. B) two types of speed. C) both of these D) neither of these
Emission lines of hydrogen that are found in the ultraviolet part of the electromagnetic spectrum are formed by electrons transitioning from:
A) any level to level 2. B) level 2 to any level. C) any level to level 1. D) level 1 to any level. E) any level to level 3.
The symbol indicating the atomic number of a nucleus is A
a. True b. False Indicate whether the statement is true or false