Mathematically, to compute for the wavelength, λ, we have
![\lambda = \frac{v}{f}](https://tex.z-dn.net/?f=%20%5Clambda%20%3D%20%5Cfrac%7Bv%7D%7Bf%7D%20)
where v is the velocity and f is the frequency.
As we can see here, given that velocity is constant, wavelength increases as frequency decreases. This shows that wavelength is inversely proportional to frequency.
Answer: Wavelength and frequency are inversely related to each other.
No work is being performed on the object unless the object is moving, as work done = force x distance
Answer:
Scientific notation is the way that scientists easily handle very large numbers or very small numbers. For example, instead of writing 0.0000000056, we write 5.6 x 10-9. So, how does this work? We can think of 5.6 x 10-9 as the product of two numbers: 5.6 (the digit term) and 10-9 (the exponential term).
Explanation:
Answer:
= 2.83
Explanation:
F number (N) is given by the formula;
F- number = f/D
where f = focal length of lens and D = diameter of the aperture
Therefore;
F number = 17 cm/6 cm
<u> = 2.83</u>
Answer:
θ = 18.3°
Explanation:
The angle can be found by using the formula for the range of projectile motion:
![R = \frac{u^2Sin2\theta}{g}](https://tex.z-dn.net/?f=R%20%3D%20%5Cfrac%7Bu%5E2Sin2%5Ctheta%7D%7Bg%7D)
where,
R = Horizontal Range = 8.75 m
u = launch speed = 12 m/s
g = acceleration due to gravity = 9.81 m/s²
θ = launch angle = ?
Therefore,
![8.75\ m = \frac{(12\ m/s)^2\ Sin2\theta}{9.81\ m/s^2} \\\\Sin2\theta = \frac{(8.75\ m)(9.81\ m/s^2)}{(12\ m/s)^2} \\\\2\theta = Sin^{-1}(0.6)\\\theta = \frac{36.6^o}{2}](https://tex.z-dn.net/?f=8.75%5C%20m%20%3D%20%5Cfrac%7B%2812%5C%20m%2Fs%29%5E2%5C%20Sin2%5Ctheta%7D%7B9.81%5C%20m%2Fs%5E2%7D%20%5C%5C%5C%5CSin2%5Ctheta%20%3D%20%5Cfrac%7B%288.75%5C%20m%29%289.81%5C%20m%2Fs%5E2%29%7D%7B%2812%5C%20m%2Fs%29%5E2%7D%20%5C%5C%5C%5C2%5Ctheta%20%3D%20Sin%5E%7B-1%7D%280.6%29%5C%5C%5Ctheta%20%3D%20%5Cfrac%7B36.6%5Eo%7D%7B2%7D)
θ = 18.3°
Since this angle is less than 45°. Therefore, it is the smaller of the two possible angles an dit is the correct answer:
<u>θ = 18.3°</u>