Well because it has momentum and it needs to be slowed down.
Answer:
Explanation:
Let us calculate gallon used in one hour .
It travels 70 miles in one hour
in 70 miles it uses 70 / 34 gallons of fuel
70 / 34 gallons = 70 / 34 x 3.7854 kg
= 7.8 kg
heat generated = 7.8 x 44 x 10⁶ J
= 343.2 x 10⁶ J
This is heat generated in one hour
heat generated in one second = 343.2 x 10⁶ / 60 x 60 J/s
= 95.33 x 10³ J /s
= 95.33 kW.
Using Kepler's third law which is defined as the square of the average distance is directly proportional to the cube of the period. It is expressed as P^2 = a^3, Given that the a = average distance is given, the period would be much easier to compute. P = sqrt(27^3) = 140
Answer:
43.88 meters per second
Explanation:
The computation of the speed is shown below:
As we know that

where,
Distance is 395,000 meters
Time is 9,000 seconds
Now placing these values to the formula
So, the speed is

= 43.88 meters per second
As speed shows the relation between the distance and time and the same is to be considered i.e by applying the formula