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sleet_krkn [62]
2 years ago
6

Which of the following phenomena support the idea that light is a wave?

Physics
1 answer:
Pie2 years ago
3 0

Answer:

Wave theory of light explains the phenomena of interference, diffraction, scattering, dispersion, polarisation etc. Complete solution: Around 1700, it was concluded by Newton that light was a group of particles. It was called corpuscular theory.

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Asteroid Ida was photographed by the Galileo spacecraft in 1993, and the photograph revealed that the asteroid has a small moon,
Nady [450]

Answer:

The orbital speed of Dactyl is 5.55m/s

Explanation:

The orbital speed can be determined by the combination of the universal law of gravity and Newton's second law:

F = G\frac{M \cdot m}{r^{2}}  (1)

Where G is gravitational constant, M is the mass of the asteroid, m is the mass of the moon and r is the distance between them

In the other hand, Newton's second law can be defined as:

F = ma  (2)

Where m is the mass and a is the acceleration

Then, equation 2 can be replaced in equation 1

m\cdot a  = G\frac{M \cdot m}{r^{2}}  (2)

However, a will be the centripetal acceleration since the moon Dactyl describe a circular motion around the asteroid

a = \frac{v^{2}}{r}  (3)

m\frac{v^{2}}{r} = G\frac{M \cdot m}{r^{2}} (4)

Therefore, v can be isolated from equation 4:

m \cdot v^{2} = G \frac{M \cdot m}{r^{2}}r

m \cdot v^{2} = G \frac{M \cdot m}{r}

v^{2} = G \frac{M \cdot m}{rm}

v^{2} = G \frac{M}{r}

v = \sqrt{\frac{G M}{r}} (5)

Finally, the orbital speed can be found from equation 5:

Notice, that it is necessary to express r in units of meters.

r = 95km \cdot \frac{1000m}{1km} ⇒ 95000m

v = \sqrt{\frac{(6.672x10^{-11}N.m^{2}/kg^{2})(4.4x10^{16}kg)}{95000m}}

v = 5.55m/s

Hence, the orbital speed of Dactyl is 5.55m/s

3 0
2 years ago
Can somebody please help me!
Serga [27]

Answer:

graph it like thisdo the number it has so do 14

Explanation:

so do 14 and you have it

6 0
3 years ago
What is your wheel and axle
Crank

Answer:

Pls mark me brainliest

Explanation:

The wheel and axle is a simple machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.

8 0
2 years ago
Read 2 more answers
A race car traveling at 44m/s slows at a constant rate to a velocity of 22m/s over 11 seconds , how far does it move during this
krok68 [10]

Answer:

add 44m/s and 22m/s then multiply it by 11

Explanation:

8 0
2 years ago
an object is moving with initial velocity of 5 m/s. After 10 seconds final velocity is 10 m/s. Calculate its acceleration.​
Brut [27]

Answer:

0.5m/s2

Explanation:

acceleration= change in velocity/time taken

= v - u/ t

= 10-5/10

=5/10

= 0.5m/s2

6 0
3 years ago
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