A metal block sits on top of a floating wooden block. If the metal block is suspended from the bottom of the wooden block, what happens to the level of water in the beaker?
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Who discovered the electron in 1897?
a. Ernest Rutherford b. James Chadwick c. J. J. Thomson d. Niels Bohr
An arrow is shot, from a bow, at an original speed of vo. When it returns to the same horizontal level, its speed will be
A) 9.8 vo. B) vo. C) 2 vo. D) 1/2 vo. E) 4 vo.
Refer to Figure 6-13. Block A has a mass of 3.00 kg, block B has a mass of 5.00 kg and block C has a mass of 2.00 kg. The pulleys are ideal and there is no friction between block B and the table. What is the acceleration of the masses?
A. 4.20 m/s2 B. 4.71 m/s2 C. 1.86 m/s2 D. 2.94 m/s2 E. 0.981 m/s2
A satellite is in a circular orbit about the Earth at an altitude at which air resistance is negligible. Which of the following statements is true?
a. There is only one force acting on the satellite. b. There are two forces acting on the satellite, and their resultant is zero. c. There are two forces acting on the satellite, and their resultant is not zero. d. There are three forces acting on the satellite. e. None of the preceding statements are correct.