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A plastic block of dimensions 2cm * 3 cm * 4 cm has a mass of 30 g. What is its density?

A plastic block of dimensions 2cm * 3 cm * 4 cm has a mass of 30 g. What is its density?. 0.8 g/cm 3 1.2 g/cm 3 1.25 g/cm 3 1.6 g/cm 3.

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A plastic block of dimensions 2cm * 3 cm * 4 cm has a mass of 30 g. What is its density?

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  1. A plastic block of dimensions 2cm * 3 cm * 4 cm has a mass of 30 g. What is its density? 0.8 g/cm3 1.2 g/cm3 1.25 g/cm3 1.6 g/cm3

  2. Substance A has a density of 3 g/cm3 and substance B has a density of 4 g/cm3. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be: • 1:3 • 4:3 • 3:4 • 1:4

  3. A liquid has a specific gravity of 0.357. What is its density? • 357 kg/m3 • 643 kg/m3 • 1000kg/m3 • 3570 kg/m3

  4. A person weighing 900 N is standing on snowshoes. Each snowshoe has an area of 2500 cm2. What is the pressure on the snow? • 0.18 N/m2 • 0.36 N/m2 • 1800 N/m2 • 3600 N/m2

  5. What is the absolute pressure at a location 15 m below the surface of the sea? (The density of seawater is 1.03 * 103 kg/m3) • 1.01 * 105 N/m2 • 1.51 * 105 N/m2 • 2.48 * 105 N/m2 • 2.52 * 105 N/m2

  6. What is the gauge pressure if the absolute pressure is 300 kPa? • 97 kPa • 101 kPa • 199 kPa • 300 kPa

  7. You are originally 1 m below the surface of a pool. If you dive to 2 m below the surface, what happens to the absolute pressure on you? • it quadruples • it more than doubles • it doubles • it less than doubles

  8. You are originally 1 m below the surface of a pool. If you dive to 3 m below the surface, what happens to the additional pressure (in excess of atmospheric pressure) on you? • increases by a factor of 9 • more than triples • triples • less than triples

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