Answer:
be the mehcanic for once and see what the answer is
Explanation:
Answer:
Part a)
a = - 8.45 m/s/s
Part b)

Part c)

Explanation:
Part a)
when car apply brakes then the friction force on the car in front of us is given as

here we need to find deceleration due to friction



Part b)
Braking distance of the car is the distance that it move till it stops
so we will have



Part c)
Since we know that average reaction time for human is 0.424 s
now we know that during reaction time our car will travel at uniform speed
so we will have



In this case, volume of the can remains constant. The relationship between pressure and temperature at constant volume is given by:
P/T = Constant
Then

Where
P1 = 40 psi
P2 = ?
T1 = 60°F ≈ 289 K
T2 = 90°F ≈ 305 K (note, 363 K is not right)
Substituting;
Answer: If you make certain decisions like changing your diet (for good or worse) increasing physical activity, or playing more video games, things like these can affect your wellness and health for the worse or better.