La D mijo es blanco por que al pasar con rapides el color se torna blanco
Explanation:
The distance that a car travels down the interstate can be calculated with the following formula:
Distance = Speed x Time
(A) Speed of the car, v = 70 miles per hour = 31.29 m/s
Time, d = 6 hours = 21600 s
Distance = Speed x Time
D = 31.29 m/s × 21600 s
D = 675864 meters
or
![D=6.75\times 10^5\ m](https://tex.z-dn.net/?f=D%3D6.75%5Ctimes%2010%5E5%5C%20m)
(b) Time, d = 10 hours = 36000 s
Distance = Speed x Time
D = 31.29 m/s × 36000 s
D = 1126440 meters
or
![D=1.12\times 10^6\ m](https://tex.z-dn.net/?f=D%3D1.12%5Ctimes%2010%5E6%5C%20m)
(c) Time, d = 15 hours = 54000 s
Distance = Speed x Time
D = 31.29 m/s × 54000 s
D = 1689660 meters
or
![D=1.68\times 10^6\ m](https://tex.z-dn.net/?f=D%3D1.68%5Ctimes%2010%5E6%5C%20m)
Hence, this is the required solution.
The potential energy that the ball has at the top of the tower is its kinetic energy when it hits the ground. The second ball has more potential energy at the top, because you did more work on it to carry it up there. So it has more KE at the bottom. (A)
Given that,
Radius of track, r = 50 m
time , t = 9 s
velocity, v = ?
Distance covered by car in one lap around a track is equal to the circumference of the track.
C = 2 π r = 2 * 3.14 * 50
C = 314.159 m
Distance covered by car, s = 314.159 m
Velocity = distance/ time
V = 314.159 / 9
V = 34.9 m/s
The average velocity of car is 34.9 m/s.