Answer:
λ = 6.602 x 10^(-7) m
Explanation:
In a double-slit interference experiment, the distance y of the maximum of order m from the center of the observed interference pattern on the screen is given as ;
y = mλD/d
Where;
D is the distance of the screen from the slits = 6.2 m
d is the distance between the two slits = 0.046 mm = 0.046 x 10^(-3) m
The fringes on the screen are 8.9 cm = 0.089 m apart from each other, this means that the first maximum (m=1) is located at y = 0.089 m from the center of the pattern.
Therefore, from the previous formula we can find the wavelength of the light:
y = mλD/d
So, λ = dy/mD
Thus,
λ = (0.046 x 10^(-3) x 0.089)/(1 x 6.2)
λ = 6.602 x 10^(-7) m
Not sure what “work” defines but from my understanding I’d go with false.
If a car is traveling on the highway at a constant velocity, then the force that pushes the car forward must be <em>equal to the force of friction exerted upon the car</em>, AND in exactly the opposite direction. <em>(D)</em>
If that's true, then the forces on the car are balanced, and the car doesn't accelerate ... which is exactly what we need, because you told us that the car is moving along the highway "at a constant velocity".
Answer:
Option D => it is moving from high potential to low potential and losing electric potential energy.
Explanation:
Consider a big circle, within the circle we have force, F. That force, F is known as the Electric Field and inside the region or field or space, charged particle or object will be able to exerts force on the other objects.
Electric Field can be represented mathematically by using the formula below; E = kQ/r^2.
So, let us answer the question with what we have considered above. It is worthy of note to know that electric Field moves from a region of higher potential to a region of lower potential. So, any option that says this is correct.
But, there is only one problem and that is the fact that the question asked us about the direction of the movement of proton. Since, proton is s a positive charge, it is going to lose electric potential energy. So, Option D is correct.
