As shown in the figure, a container has a vertical tube, whose inner radius is 32.00 mm, connected to it at its side. An unknown liquid reaches level A in the container and level B in the tube level A being 5.0 cm higher than level B. The liquid supports a 20.0 cm high column of oil, between levels B and C, whose density is 460 kg.m-3. What is the density of the unknown liquid?

Consider a solid uniform sphere of radius R and mass M rolling without slipping. Which form of its kinetic energy is larger, translational or rotational?

A) Translational kinetic energy is larger. B) Rotational kinetic energy is larger. C) Both are equal. D) You need to know the speed of the sphere to tell.

The extreme size of volcanoes on Mars indicates that

a. Mars has a much thicker crust than Earth. b. water once flowed in streams on Mars. c. large moving plates have not formed on Mars. d. Mars has a much thicker crust than Earth and large moving plates have not formed on Mars. e. Mars has a much thicker crust than Earth, water once flowed in streams on Mars, and large moving plates have not formed on Mars.

A solid conducting sphere of 10-cm radius has a net charge of 18 nC. If the potential at infinity is taken as zero, what is the potential at the center of the sphere?

a. 2.1 ?V b. 16 ?V c. 1.6 × 10^3 V d. >1.6 × 10^4 V e. 13 ?V

The energy dissipated in a light bulb in a circuit is provided by the

A) lamp filament itself. B) wires leading to the lamp. C) voltage source. D) none of the above