A piece of soft wood floats in water with half of its volume submerged. If it is placed in mercury which has a density about 13.6 times that of water, it will float ________ (higher, lower, the same) compared with floating in water.
Fill in the blank(s) with the appropriate word(s).
higher
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In Europe, the combined Mississippian and Pennsylvanian periods are known as the
a. Carboniferous. b. Devonian. c. Pliocene. d. Tertiary.
Constant Acceleration Kinematics: A car starts from rest and accelerates at a steady 6.00 m/s2. How far does it travel in the first 3.00 s?
A. 9.00 m B. 18.0 m C. 27.0 m D. 36.0 m E. 54.0 m
In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, frictionless conducting rails connected as shown to a 2.0-? resistor. A uniform 1.5-T magnetic field is perpendicular to the plane of the paper. If L = 60 cm, at what rate is thermal energy being generated in the resistor at the instant the speed of the bar is equal to 4.2 m/s?
A. 8.6 W B. 7.8 W C. 7.1 W D. 9.3 W E. 1.8 W
When a chocolate bar is cut in half, its density of each half is
A) halved. B) unchanged. C) doubled.