What is average velocity??
2 answers:
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<h2>Answer:</h2>
1.99 x 10⁶C
<h2>Explanation:</h2>The electrical energy () stored in the battery will give the car some kinetic energy (
) which will cause the car to move from rest to some other point.
i.e
=
------------------(i)
<em>But;</em>
=
x Q x V; -------------------(ii)
Where;
Q = charge on the battery
V = potential difference or voltage of the battery = 12.0V
<em>Also</em>
= (
x m x v²) - (
x m x u²) -----------------(iii)
Where;
m = mass of the car = 956kg
v = final velocity of the car = 158m/s
u = initial velocity of the car = 0 [since the car starts from rest]
<em>Substitute equations (ii) and (iii) into equation (i) as follows;</em>
x Q x V = (
x m x v²) - (
x m x u²) -----------------(iv)
<em>Substitute all necessary values into equation (iv) as follows;</em>
x Q x 12.0 = (
x 956 x 158²) - (
x 956 x 0²)
x Q x 12.0 = (
x 956 x 158²) - (0)
x Q x 12.0 = (
x 956 x 158²)
x Q x 12.0 = 11932792
6Q = 11932792
<em>Solve for Q;</em>
Q = 11932792 / 6
Q = 1988798.67 C
Q = 1.99 x 10⁶C
Therefore, the amount of charge the batteries must have is 1.99 x 10⁶C
Answer:
The wavelength is
Explanation:
From the question we are told that
The wavelength of the red laser is
The spacing between the fringe is
The spacing between the fringe for smaller laser point is
Generally the spacing between the fringe is mathematically represented as
Here is the distance to the screen
and d is the distance of the slit separation
Now for both laser red light light and small laser point D and d are same for this experiment
So
=>
Where is the wavelength produced by the small laser pointer
So
=>