Answer:
The final velocity is 
Explanation:
From the question we are told that
The mass of the child is 
The initial speed of the child is 
The mass of the wagon is 
The initial speed of the wagon is 
The mass of the ball is 
The initial speed off the ball is 
Generally the initial speed of the system (i.e the child , wagon , ball) is
Generally from the law of linear momentum conservation
Here 
is the momentum of the system before the ball is dropped which is mathematically represented as
=> 
=> 
and
is the momentum of the system after the ball is dropped which is mathematically represented as
=> 
So
=>
Answer:
observe o gráfico abaixo que mostra o número de internação em um hospital no município no período de 1960
Answer:
I feel like to demonstrate you would use an elastic band as the material. You obviously have to put force in order to see how far it stretches. From this you can also find about its resistance and durability
Also you have to make sure the distance between the two hands are equal as you want an accurate result.
The answer would be A transverse
