Answer:
To share a positive experience she had with a pen pal
Explanation:
Just read the story :)
Answer:
The answer is B. I had a question like this last week in my physics practice exam. dont have alot of time so I cant explain right now
Explanation:
Answer:
9.21 m
Explanation:
because this is the answer
Answer:
The moment of inertia of the system is
Explanation:
From the question we are told that
The mass of the platform is
The radius of the platform is r = 1.95 m
The mass of the person is
The position of the person from the center is
The mass of the dog is
The position of the dog from the center is
Generally the moment of inertia of the platform with respect to its axis is mathematically represented as
The moment of inertia of the person with respect to the axis is mathematically represented as
The moment of inertia of the dog with respect to the axis is mathematically represented as
So the moment of inertia of the system about the axis is mathematically evaluated as
=>
substituting values
As the density of the unknown substance is 0.68g/0.8ml = 0.85g/ml, it is less dense than the maple syrup at 1.33g/ml and will float.