Answer:
Explanation:
(newtons first law)
conservation of momentum law states :
momentum before collision = momentum after collision
momentum p (kg-m/s)= mass * velocity
say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s
say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s
total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s
momentum after collision = 10 000 kg-m/s
mass now = 1 000 kg+2 000 kg = 3 000 kg
10 000 = 3 000 kg* velocity m/s
10 000/3 000 = velocity
3.33 m/s = velocity after collision
an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied
We will start by defining the units and their respective equivalences between the proposed measurement systems
PART A ) The mileage of the car is 55mpg (Miles per gallon)
Therefore the mileage of the car is 23.4km/L
PART B ) The mileage of the car means that the car travels 23.4km and consumes 1 liter of fuel. Then
For the car to travel 1500km the amount of fuel would be,
But 1 gas tank can only hold 45Liters of fuel, then the number of tank required would be
Thus the number of tanks of gas required to drive 1500km is 1.4
Answer:
A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work on it.
The answer is Carbonic acid
C option
Power = voltage x current
