Author Question: A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a density 300 kg/m3. The board is ... (Read 159 times)

abarnes · **on:** Jul 29, 2018

A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a density 300 kg/m3. The board is floating partially submerged in water. What fraction of the volume of the board is above the surface of the water?

A)

0.300
B)

It depends on which edge of the board is vertical.
C)

0.700
D)

zero
E)

0.200

Question 2

A pilot drops a bomb from a plane flying horizontally at a constant speed. Neglecting air resistance, when the bomb hits the ground the horizontal location of the plane will

A)

be behind the bomb.
B)

be over the bomb.
C)

be in front of the bomb.
D)

depend of the speed of the plane when the bomb was released.
E)

depend of the mass of the bomb when it was released.