1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it?
2. A piller with a cross sectional area of 1.5 m^2 supports a portion of a building with a mass of 1.5 x 10^4 kg. What is the stress if the column is made from concrete?
3. The cross section of a rectangular block ABCD. The mass of the block is evenly distributed throughout the block. The block has a dimension of 10 cm x 40 cm x 40 cm.
a. Given that the density of the natural used to make the block is 500 kgm^3, what is the mass of the block in kg?
b. Calculate the density of 5 each block.
1 answer
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