Answer:
20000 pounds
Explanation:
Generally 1 gallon of fuel burnt gives of 20 pounds of CO₂
Difference in the gallons of fuel burnt
The 20 mpg car burns 1000 gallons of fuel more than the 30 mpg car
The amount of CO₂ would be
The fewer pounds that the 30 mpg car would release is 20000 pounds
The change in the height of the object is 5.1 m.
<h3>Conservation of mechanical energy</h3>The principle of conservation of mechanical energy states that the total energy of an isolated system is always conserved.
The change in the height of the object is calculated by applying the principle of conservation of mechanical energy as follows;
P.E = K.E
Thus, the change in the height of the object is 5.1 m.
Learn more about conservation of mechanical energy here: brainly.com/question/6852965
The equivalent capacitance of the combination is where C1 and C2 are the capacitance of both capacitors in series.
Let the capacitance of both capacitors be C1 and C2. For a series connected capacitors, same charge flows through the capacitors but different voltage flows through them.
Let Q be the amount of charge in each capacitors,
V be the voltage across each capacitors
C be the capacitance of the capacitor.
Using the formula Q = CV where V = Q/C... (1)
For the large capacitor with capacitance of the capacitor C1,
where is the voltage across
For the small capacitor with capacitance of the capacitor ,
;
where is the voltage across
,
Total voltage V in the circuit will be;
Substituting equation 1, 2 and 3 in equation 4, we have;
Since change Q is the same for both capacitors since they are in series, they will cancel out to finally have;
This gives the equivalent capacitance of the combination.
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