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GuDViN [60]
3 years ago
8

An EM wave has a speed of 3 x 10 ^ 8 m/s and a wavelength of 6 x 10 ^ -7 m. What is the frequency of the wave? 90 Hz 180 Hz 2 x

10 ^ -15 Hz 5 x 10 ^ 14 Hz
Physics
1 answer:
arsen [322]3 years ago
5 0
F = 3x10^8m/s / 6x10^-7m = Hz
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Which action is due to field forces?
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3 years ago
What is the energy of a photon with a frequency of 2.2 x 1016 Hz? Planck's constant is 6.63 x 10-34 Jos.
aleksandr82 [10.1K]

Answer: 1.5 × 10^-17

Explanation:

Given the following :

Frequency(f) = 2.2 × 10^16 Hz

Planck's constant(h) = 6.63 × 10^-34

The energy of a photon 'E' is given as the product of frequency and the planck's constant

E = hf

E = (6.63 × 10^-34) × (2.2 × 10^16)

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E = 14.586 × 10^-18

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3 years ago
Help please. I will give brainliest.
ser-zykov [4K]

Answer:

D, E, F, G are correct.

Explanation:

7 0
3 years ago
An eagle is flying horizontally at a speed of 3.1 m/s when the fish in her talons wiggles loose and falls into the lake 5.8 m be
DedPeter [7]

Answer:11.101 m/s

Explanation:

Given

Velocity of eagle=3.1 m/s

Eagle is at height of 5.8 m

Fish is dropped with a horizontal velocity of 3.1 m/s

time taken by fish to reach lake is

h=ut+\frac{gt^2}{2}

here u=0 (vertical velocity)

5.8=\frac{9.8\times t^2}{2}

t=1.087 s

Vertical velocity acquired by fish is v=u+at

v=0+9.8\times 1.087=10.66 m/s

Horizontal velocity=3.1 m/s

Therefore net velocity=\sqrt{10.66^2+3.1^2}=11.101 m/s

tan\theta =\frac{v_y}{v_x}=\frac{10.66}{3.1}=3.43

\theta =73.74^{\circ} below horizontal

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4 years ago
AP physics! Will give brainliest to correct answer!
zavuch27 [327]

Answer:

D

Explanation:

8 0
3 years ago
Read 2 more answers
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