Matthew throws a ball straight up into the air. It rises for a period of time and then begins to drop. At which points in the ba
1 answer:
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Given:
I = 30dB
P = 66 × Pa
Solution:
Formula used:
I = (1)
where,
I = intensity of sound
P = absolute pressure
= reference pressure
Using Eqn (1), we get:
=
= 2.08 ×
Pa
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