To Measure Moderately Low Pressures Oil with a Density of 8.5

question 54

Multiple Choice

To measure moderately low pressures oil with a density of 8.5 * 10² kg/m³ is used in place of mercury in a barometer. A change in the oil column of 1.0 mm indicates a change in pressure of about:

• A) 1.2 *10^-7 Pa
• B) 1.2 *10^-5 Pa
• C) 0.85 Pa
• D) 1.2 Pa
• E) 8.3 Pa

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Definitions:

Cost of Equity

The return that investors require or expect to earn on their investment in a company's equity to compensate for the risk they undertake.

After-Tax Cost

The after-tax cost is the net cost of a transaction, investment, or other financial activity after taking into account the effect of taxes.

Debt-Equity Ratio

Measures a company's financial leverage calculated by dividing its total liabilities by stockholders' equity.

Pre-Tax Cost

The expense or cost incurred by an entity before taxes have been deducted.