Explain how sound is being produced from this 'Stomp' group.
1 answer:
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Answer:
Let's see the similarities between the two forces
* are proportional to the product of a magnitude, mass or charge
* They are inversely proportional to the square of the distance
* They are long-range forces since zero is not made up to an infinite distance. The gravitational force is always attractive, the electrical force can be attractive or repulsive.
The differences in them
* The electric force in much greater than the gravitational force
* The gravitational force is always attractive, the electrical force can be attractive or repulsive.
Explanation:
Let's start by calculating each force.
Gravitational force
F =
let's calculate
F = 6.67 10⁻¹¹ 1 1 / 1²
F = 6.67 10⁻¹¹ N
Electric force
F =
indicates that the charge is q = 10 C
F = 9 10⁹ 10 10 / 1²
F = 9 10¹¹ N
Let's see the similarities between the two forces
* are proportional to the product of a magnitude, mass or charge
* They are inversely proportional to the square of the distance
* They are long-range forces since zero is not made up to an infinite distance. The gravitational force is always attractive, the electrical force can be attractive or repulsive.
The differences in them
* The electric force in much greater than the gravitational force
* The gravitational force is always attractive, the electrical force can be attractive or repulsive.
Answer:
The block has an acceleration of
Explanation:
By means of Newton's second law it can be determine the acceleration of the block.
(1)
Where represents the net force, m is the mass and a is the acceleration.
(2)
The forces present in x are and
(the friction force):
Notice that subtracts to
since it is at the opposite direction.
The forces present in y balance each other:
Therefore:
(3)
But and writing (3) in terms of a it is get:
So the block has an acceleration of .
Answer:
a) I = 270.18 Kg*m/s
b) F = -3216.42N
Explanation:
a) We know that:
I =
Where I is the impulse, is the final momentum and
the initial momentum.
so:
I =
where M is the mass, is the final velocity and
is the initial velocity.
First we have to find the . So, using the conservation of energy.
where g the gravity and h the altitude. Replacing values, we get:
solving for :
= 3.42 m/s
Now, replacing in the previus equation:
I =
I =
I = -270.18 Kg*m/s
The impulse is negative becuase it is upward.
b) We know that:
Ft = I
where F is the force, t the time and I the impulse.
so, replacing values and solving for F, we get:
F(0.084s) = -270.18 Kg*m/s
F = -3216.42N
The force is negative becuase it is upward.