<span>We can define average velocity as,
"the total distance displacement of an object divided by total time taken."
We can say that an object has had displacement if its final position is different from its initial position. Therefore, the formula becomes:
average velocity = total displacement / total time
Keep in mind that displacement is a vector quantity, so it is possible for an object to have covered a distance but if its starting and final positions are the same, then it has had no displacement.</span>
Answer:
there is ZERO TRANSMISSION through the polarizer.
Explanation:
Given the data in the question;
waves was polarized in the x direction propagate towards an ideal polarizer whose axis is aligned with the y-axis.
so θ = 90° { aligned with the y-axis }
now, we know that for polarized light going at angle θ to the polarizer;
I = I₀ × cos²θ
Where I₀ is the intensity of unpolarized light.
I is the intensity after polarization.
so we substitute the value of θ
I = I₀ × cos²( 90° )
I = I₀ × 0
I = 0
Therefore, there is ZERO TRANSMISSION through the polarizer.
Answer:
ig so it's already heated
Explanation:
First we need to find the acceleration due to gravity on the planet. The wrench took 0.809 s to fall from a height of 4.50 m so we can use the equation
Solving for g, we get
Recall that the acceleration due to gravity on a planet's surface can be written as
We can express the mass of the planet 
in terms of its density 
as follows:
The expression for g then becomes
Solving for 
we get
![\:\:\:\:\:\:\:= \left[\dfrac{3(13.8\:\text{m/s}^2)}{4\pi (6.674×10^{-11}\:\text{Nm}^2\text{/kg}^2)(5500\:\text{kg/m}^3)}\right]](https://tex.z-dn.net/?f=%5C%3A%5C%3A%5C%3A%5C%3A%5C%3A%5C%3A%5C%3A%3D%20%5Cleft%5B%5Cdfrac%7B3%2813.8%5C%3A%5Ctext%7Bm%2Fs%7D%5E2%29%7D%7B4%5Cpi%20%286.674%C3%9710%5E%7B-11%7D%5C%3A%5Ctext%7BNm%7D%5E2%5Ctext%7B%2Fkg%7D%5E2%29%285500%5C%3A%5Ctext%7Bkg%2Fm%7D%5E3%29%7D%5Cright%5D)
