Answer: -8,6
Step-by-step explanation:
Answer:
Factor by which kinetic energy increase = 4 times
Step-by-step explanation:
Given,
- Mass of the car, v1 = 1500 kg
- initial speed of car = 35 miles/h

= 15.64 m/s
Initial kinetic energy of the car is given by,


= 183606.46 J
- Final velocity of car v2 = 70 miles/hour

= 31.29 m/s
So, final kinetic energy of car is given by


= 734425.84 J
Now, the ratio of final to initial kinetic energy can be given by,

Hence, the kinetic energy will increase by 4 times.
360=95+120+120+125+x+84+x
360=544+2x
-184=2x
x= -92
Answer:
1115.8
Step-by-step explanation:
A counter example would be the number 2.
2 is a prime number, because it only has two factors ( itself and 1)
Yet 2 is also an even number, because it can be exactly divided by two.
So the number 2 proves that not every prime number is odd.