An automobile tire is filled to a pressure of 240.0 kPa early in the morning when the temperature is 15.0C. After the car is dri
1 answer:
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Answer:
$ 18.75
Explanation:
given,
capacity of the Dave’s car = 12 gallons
Assuming that the tank is 3/8 full before
Cost of gas per gallon = $2.50 per gallon of gas
Volume Dave have to fill
=
= of full tank
=
volume Dave have to fill = 7.5 gallons
total money Dave spent
= 7.5 gallons x $2.50
= $ 18.75
Dave have to spend $ 18.75 to fill tank to it capacity.
We can solve the problem by using the mirror equation:
where
f is the focal length
is the distance of the object from the mirror
is the distance of the image from the mirror
For the sign convention, the focal length is taken as negative for a convex mirror:
and the image is behind the mirror, so virtual, therefore its sign is negative as well:
putting the numbers in the mirror equation, we find the distance of the object from the mirror surface:
So, the distance of the object from the mirror is
where
f is the focal length
For the sign convention, the focal length is taken as negative for a convex mirror:
and the image is behind the mirror, so virtual, therefore its sign is negative as well:
putting the numbers in the mirror equation, we find the distance of the object from the mirror surface:
So, the distance of the object from the mirror is