Given:
Gasoline pumping rate, R = 5.64 x 10⁻² kg/s
Density of gasoline, D = 735 kg/m³
Radius of fuel line, r = 3.43 x 10⁻³ m
Calculate the cross sectional area of the fuel line.
A = πr² = π(3.43 x 10⁻³ m)² = 3.6961 x 10⁻⁵ m²
Let v = speed of pumping the gasoline, m/s
Then the mass flow rate is
M = AvD = (3.6961 x 10⁻⁵ m²)*(v m/s)*(735 kg/m³) = 0.027166v kg/s
The gasoline pumping rate is given as 5.64 x 10⁻² kg/s, therefore
0.027166v = 0.0564
v = 2.076 m/s
Answer: 2.076 m/s
The gasoline moves through the fuel line at 2.076 m/s.
A <span>Compound has a definte ratio of components</span>
Answer:
Given a set of vectors, you can determine if they are linearly independent by writing the vectors as the columns of the matrix A, and solving Ax = 0.
Explanation:
The cost of electricity be $ 38.544.
<h3>What is electricity?</h3>
Electricity is the passage of charges in a conductor. From one end of the terminal to the other, charges are transmitted. Usually, the terminal moves from positive to negative. Since the nucleus holds the electrons loosely, they can move freely throughout the body.
Watts are units of power used to measure electrical output.
Price of electricity is $ 0.110 per kWh .
If a 40-W porch light on day and night for a year, total amount of electricity spend = power of the bulb × time
= 40 W × 1 year
= 40 W × 365 day
= 40 W × 365 ×24 h
= 350400 Wh
= 350.4 kWh.
Hence, the cost of electricity be = $350.4 × 0.110 = $ 38.544.
Learn more about electricity here:
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