Answer:
vf = v₁/3 + 2v₂/3
Explanation:
Using the law of conservation of linear momentum,
momentum before impact = momentum after impact
So, Mv₁ + 2Mv₂ = 3Mv (since the railroad cars combine) where v₁ = initial velocity of first railroad car, v₂ = initial velocity of the other two coupled railroad cars, and vf = final velocity of the three railroad cars after impact.
Mv₁ + 2Mv₂ = 3Mvf
dividing through by 3M, we have
v₁/3 + 2v₂/3 = vf
vf = v₁/3 + 2v₂/3
Answer:
It will require 14.715 N of force to hold the cartoon beneath the water.
Explanation:
Given the the volume of cartoon is 1.5 liters.
We need to find the force required to hold this cartoon beneath the water.
As we know from the Archimedes principle that the net force is equal to the volume of liquid displaced.
Given volume of the cartoon is 1.5 liters. So, 1.5 liters of water will be displaced.
And we know the density of the water is 
. That is 
And 
So, it will require 14.715 N of force to hold 1.5 liter volume of cartoon beneath the water.
Answer:
12J
Explanation:
Right before it hits the ground, the initial potential energy and the final kinetic energy will equal each other due to conservation of energy.
Answer:
i think that bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad but actually isnt bad because their good at being bad but they are actually bad, that makes me say, its A
Answer:
Explanation:
Explanation:
Answer:
It would be static discharge and conduction
Explanation:
The conduction of static energy is pulled throughout the clothes and left over static electricity is what causes the spark.
