3
velocity=wavelength(lander) ×frequency
let lander be x
v=12
f=3
12 =x4
x= 12/4
x=3
Answer:
Force applied by bull dozer is 3333.33 joules.
Explanation:
Answer:
D) θ₂= 36. 6º
Explanation:
In this diffraction experiment it is described by the equation
sin θ = m λ
The first dark strip occurs for m = 1 and since the angle is generally small we can approximate sine to the value of the angle
θ₁ = λ/ a
This equation is valid for linear slits, in the case of a circular slit the problem must be solved in polar coordinates, so the equation changes slightly
θ₂ = 1.22 λ / a
In the proposed exercise we start with a linear slit of width a, where tes1 = 30º and end with a circular slit of the same diameter
θ₂ = 1.22 λ / a
Let's clear (Lam/a) of equalizing the two equations
θ₁ = θ₂/ 1.22
θ₂ = 1.22 θ₁
θ₂ = 1.22 30
θ₂= 36. 6º
When reviewing the correct results is D
<h2>Hey there! </h2>
<h2>Your answers are:</h2>
<h3>1.ans) 9.843 ft</h3>
<h3>2.ans) 30660000 hours </h3>
<h3>3.ans) 50 m/s</h3>
<h3>4.ans) 0.0543 mile</h3>
<h2>Hope it help you </h2>
Answer:
True, because tech is what creates thing like cars and other veicals (i know i spelled it wrong)
hope this helps
Explanation: