3 years ago

Explain how electromagnetic waves are produced. I

Physics

1 answer:

madreJ [45]3 years ago

4 0

Answer:

Electromagnetic are produced by gases and air and so much many things

Explanation:

Science teacher said I did awesome

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Alika [10]

Given

hypotenuse is 36

base is 24

Procedure

Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse. The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine).

$\begin{gathered} \cos \theta=\frac{24}{36} \\ \theta=\cos ^{-1}(\frac{24}{36}) \\ \theta=48.1 \end{gathered}$

The answer would be 48 degrees

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4 years ago

A projectile's horizontal range on level ground is r=v20sin2θ/g. at what launch angle or angles will the projectile land at half

Ksju [112]

As given the formula of range is

$R = \frac{v^2sin2\theta}{g}$

now for the maximum range

$\theta = 45$

$R_{max} = \frac{v^2}{g}$

now for half of this maximum range we will have

$\frac{R_{max}}{2} = \frac{v^2sin2\theta}{g}$

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now from above we have

$sin2\theta = \frac{1}{2}$

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