# physics

posted by .

if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood

• physics -

density= mass/volume=150kg/(30*20*500) in kg/cm^3

## Similar Questions

1. ### Science

You are given a wooden block that is 25cm long, 8cm wide and 3cm tall. Also, the block of wood has a mass of 350 grams. What is the density of this block of wood?
2. ### Science

I am trying to built a cross section of a beam. I need a strong light wood, that would give the best efficiency. A force of 1500lb is going to be applied on it. So i have to make sure it wont break. What is the best choice of wood …
3. ### physics

a block off wood (density = 0.5 g/cm^3) is floating in oil (density = 0.75 g/cm^3). The mass of the wood is 1500 g. Determine the volume of the oil displaced
4. ### Physics

A wooden cube of side 5cm floats in water 200cm^2 of its depth below the water surface and ats sides are vertical calculate the density of the wood in g/cm^3.(1) Density of water in 1g(m^-3).
5. ### Chemistry

1. A piece of rectangular wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood?
6. ### physics

A slab of wood with mass m=1.7kg floats 78% submerged.the density of water is 1000kg/m.what is the density of the wood?
7. ### PHYSICS

A slab of wood with mass m = 1.7 kg floats 78% submerged.The density of water is 1000 kg/m3 . What is the density of the wood?
8. ### Physics-science

A block of wood has a mass of 3.6kg and specific gravity of 0.6. It is to be loaded with lead of density of 11300 kg per cubic metre so that it floats in water with 0.90 of its volume immersed. What mass of lead is needed?
9. ### physics

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a …
10. ### Physics

A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.7 kg and the sign has a mass of ms = 17.4 kg. The length of the beam is L = 2.83 m. The sign is attached at the very end of the beam, but the horizontal …

More Similar Questions