Answer:
Step-by-step explanation:
x - y = (6 - 5)(y - x) → False
(x - y) (6 - 5) = 1 → False
x- y = (1)(x - y) → True
x - y = 1 + (x - y) → No solution, False
x - y = (6 - 5)(x - y) → True
Answer:
- KEi = 2.256×10^5 J
- KEf = 9.023×10^5 J
- 4 times as much work
Step-by-step explanation:
The kinetic energy for a given mass and velocity is ...
KE = (1/2)mv^2 . . . . . m is mass
At its initial speed, the kinetic energy of the car is ...
KEi = (1/2)(810 kg)(23.6 m/s)^2 ≈ 2.256×10^5 J . . . . . m is meters
At its final speed, the kinetic energy of the car is ...
KEf = (1/2)(810 kg)(47.2 m/s)^2 ≈ 9.023×10^5 J
The ratio of final to initial kinetic energy is ...
(9.023×10^5)/(2.256×10^5) = 4
4 times as much work must be done to stop the car.
_____
You know this without computing the kinetic energy. KE is proportional to the square of speed, so when the speed doubles, the KE is multiplied by 2^2 = 4.
Answer:
1/6 cup
Step-by-step explanation:
1/2 - 1/3 = 3/6 - 2/6 = 1/6 cup
Answer:
that's my answer
Step-by-step explanation:
i hope it helps
32.55% I checked on a website called math-salamanders.com
