A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a density 350 kg/m3. The board is floating partially submerged in water of density 1000 kg/m3. What fraction of the volume of the board is above the surface of the water?
A) 0.350
B) 0.650
C) zero
D) 0.200
E) The answer depends on which edge of the board is vertical.
Answer: B
You might also like to view...
In nuclear power plants, the nuclear energy is used to make steam which is then used to produce electricity
Indicate whether the statement is true or false
Suppose a ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is going up
A) Both its velocity and its acceleration point upward. B) Its velocity points upward and its acceleration points downward. C) Its velocity points downward and its acceleration points upward. D) Both its velocity and its acceleration points downward. E) Neither velocity nor acceleration can be determined without additional information.
The asteroid belt is found between which two planets' orbits?
a. Earth and Mars b. Mars and Jupiter c. Jupiter and Saturn d. Venus and Earth
Who suggested that material particles (protons, etc.) have wave properties too?
A) Bohr B) Einstein C) Planck D) Schrodinger E) de Broglie