Item 3 You have a bucket containing an unknown liquid. You also have a cube-shaped wooden block that you measure to be 8.0 cm on a side, but you don't know the mass or density of the block. To find the density of the liquid, you perform an experiment. First you place the wooden block in the liquid and measure the height of the top of stack various numbers of U.S. quarter-dollar coins onto the block and measure the new value of h. The straight line that gives the best fit to the data you have collected is shown in (Figure 1). The mass of one quarter is 5.67 g. Use this information and the slope and intercept of the straight-line fit to your data. The lowest point on the graph corresponds to 1.2 cm. Part A the floating block above the liquid surface. Then you Calculate the density of the liquid. Express your answer in kilograms per cubic meter. Vα ΑΣφ kg/m³ Submit Request Answer Part B Figure 1 of 1 Calculate the mass of the block. Express your answer in kilograms. h (cm) 3.5 E ? 3.0 kg m = 2.5 2.0 1.5 Submit Request Answer 1.0 0. 10 15 20 25 30 Provide Feedback Number of quarters
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
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