Apiece of wood has a width of 5 cm and a height of 10 cm. its volume is 100 cm3. what is the length of the wood?

Determine the critical height h of the water level that causes the concrete gravity dam to be on the verge of tipping over due to water pressure. the density of concrete is ρc = 2.40 mg/m3. suppose that hd = 38 m. hint: work the problem using a 1-m width of the dam.

What statements accurately describe atoms

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?