Answer:
Yes the statement is correct
Explanation:
The de-broglie relation is mathematically represented as
![\lambda =\frac{h}{p}](https://tex.z-dn.net/?f=%5Clambda%20%3D%5Cfrac%7Bh%7D%7Bp%7D)
where
p is momentum of the system
From the relation we can see that the wavelength is inversely proportional to the momentum of the particle.
Answer:
C. tiny particles called charges flowing through the wires.
Explanation:
<h3> Hello!</h3>
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume.
Hope it helps!
<h2>
Relationship Between Frequency and Period</h2>
The frequency and the period are inversely proportional.
where T is the period
<h2>Solving the Question</h2>
We're given:
- <em>v</em> = 340 m/s
- <em>f</em> = 1000 Hz
Because the frequency and the period are reciprocals of each other, we can find the period of the sound by finding the reciprocal of the frequency:
![T=\dfrac{1}{1000}](https://tex.z-dn.net/?f=T%3D%5Cdfrac%7B1%7D%7B1000%7D)
<h2>Answer</h2>
![T=\dfrac{1}{1000}](https://tex.z-dn.net/?f=T%3D%5Cdfrac%7B1%7D%7B1000%7D)
The food package will strike the ground at 11 degrees below the horizontal.
<h3>Time for the food package to hit the ground</h3>
The time for the food package to hit the ground is calculated as follows;
h = vt + ¹/₂gt²
<em>let the initial velocity be horizontal</em>
4900 = 0(t) + (0.5 x 9.8)t²
4900 = 4.9t²
t² = 4900/4.9
t² = 1,000
t = √1,000
t = 31.62 s
<h3> Final speed of the food package when it hits ground</h3>
vf(y) = vo + gt
vf(y) = 0 + (31.62 x 9.8)
vf(y) = 309.88 m/s
<h3>Angle of projection</h3>
The horizontal component of the speed will be constant, while vertical component will change
![tan(\theta ) = \frac{V_y}{V_x} \\\\\theta = tan^{-1} (\frac{V_y}{V_x})\\\\\theta = tan^{-1} (\frac{309.88}{58.1} )\\\\\theta = 79^0](https://tex.z-dn.net/?f=tan%28%5Ctheta%20%29%20%3D%20%5Cfrac%7BV_y%7D%7BV_x%7D%20%5C%5C%5C%5C%5Ctheta%20%3D%20tan%5E%7B-1%7D%20%28%5Cfrac%7BV_y%7D%7BV_x%7D%29%5C%5C%5C%5C%5Ctheta%20%3D%20tan%5E%7B-1%7D%20%28%5Cfrac%7B309.88%7D%7B58.1%7D%20%29%5C%5C%5C%5C%5Ctheta%20%3D%2079%5E0)
Angle below the horizontal = 90 - 79 = 11⁰
Thus, the food package will strike the ground at 11 degrees below the horizontal.
Learn more about angle of projection here: brainly.com/question/10671136