A project is located in an area with a demand-response program and on a site that has enough room for a wind-turbine to allow fo
1 answer:
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Answer:
d. the atomic number remains the same.
Explanation:
First at all it's important to know how to read nuclear information
X is the atomic symbol, A the mass number and Z the atomic number of the element.
Gamma rays emitted on gamma decay are characterized as
If we write the nuclear equation for the decay, we have that:
The sum of the mass numbers and atomic numbers on the right side has to be equal to the left side numbers of the equation, that means the mass number and the atomic number remains the same for the resulting atom to preserve the equality.
Answer:
The given vector can be represented in unit vector as
The magnitude of any vector is given by
Applying values we get
We know that positive x axis in vertorial form is represented as
taking dot product of both the vector's we get
1) The average velocity is
2) The instantaneous velocity is
Explanation:
1)
The average velocity of an object is given by
where
d is the displacement
t is the time elapsed
In this problem, the position of the particle is given by the function
where t is the time.
The position of the particle at time t = 6 sec is
While the position at time t = 12 sec is
So, the displacement is
And therefore the average velocity is
2)
The instantaneous velocity of a particle is given by the derivative of the position vector.
The position vector is
By differentiating with respect to t, we find the velocity vector:
Therefore, the instantaaneous velocity at any time t can be found by substituting the value of t in this expression.
Learn more about velocity:
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