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snow_lady [41]
3 years ago
12

Which statement best explains the relationship between the wavelengths and the frequencies of all the waves in the electromagnet

ic spectrum?
A The higher the frequency of the waves, the higher their wavelength is.
B The higher the frequency of the waves, the lower their wavelength is.
C The frequency of the waves is always the same as their wavelength.
D The wavelengths and frequencies of the waves do not affect each other.
Physics
1 answer:
sukhopar [10]3 years ago
4 0
Which statement best explains the relationship between the wavelength and the frequencies of all the waves in the electromagnetic spectrum? 
B. <span>The higher the frequency of the waves, the lower their wavelength is.</span>
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The nucleus is found in the center of an atom options: True False
AfilCa [17]
It’s true all the way. It’s true
8 0
2 years ago
Read 2 more answers
An airplane has a starting velocity of 300m/s. It then accelerates at a rate of 45m/s2 for a time of 10s. What is it's final vel
Olenka [21]
A = (v - u) / t

a = acceleration
v = final velocity
u = initial velocity
t = time

45 = (v - 300) / 10

45 × 10 = v - 300

450 + 300 = v

v = 750 m/s

Hope this helps!

P.S. Let me know if you need an explanation
8 0
3 years ago
A particularly beautiful note reaching your ear from a rare Stradivarius violin has a wavelength of 39.1 cm. The room is slightl
USPshnik [31]

Given Information:  

Wavelength =  λ = 39.1 cm = 0.391 m

speed of sound = v = 344 m/s

linear density = μ = 0.660 g/m = 0.00066 kg/m

tension = T = 160 N

Required Information:

Length of the vibrating string = L = ?

Answer:

Length of the vibrating string = 0.28 m

Explanation:

The frequency of beautiful note is

f = v/λ

f = 344/0.391

f = 879.79 Hz

As we know, the speed of the wave is

v = √T/μ

v = √160/0.00066

v = 492.36 m/s

The wavelength of the string is

λ = v/f

λ = 492.36/879.79

λ = 0.5596 m

and finally the length of the vibrating string is

λ = 2L

L = λ/2

L = 0.5596/2

L = 0.28 m

Therefore, the vibrating section of the violin string is 0.28 m long.

3 0
3 years ago
A particle is released as part of an experiment. Its speed t seconds after release is given by v (t )equalsnegative 0.4 t square
torisob [31]

Answer:

a) 2.933 m

b) 4.534 m

Explanation:

We're given the equation

v(t) = -0.4t² + 2t

If we're to find the distance, then we'd have to integrate the velocity, since integration of velocity gives distance, just as differentiation of distance gives velocity.

See attachment for the calculations

The conclusion of the attachment will be

7.467 - 2.933 and that is 4.534 m

Thus, The distance it travels in the second 2 sec is 4.534 m

6 0
3 years ago
Is it true or not true
maria [59]

Answer:

true

Explanation:

6 0
3 years ago
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