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3 years ago

What sort of waves exhibit the doppler effect?

Physics

1 answer:

Alexus [3.1K]3 years ago

7 0

The waves that occur when you drop and stone into the water when skipping rocks

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A rocket can fly into space because !

klemol [59]

Newton 3rd law of motion which says action and reaction are equal and opposite. just like if you fill up a ballon with air it losses mommentum it loses the greater it flies around.

so rocket achieve thrust and moves when you exert a huge amount of mass at high speed

and also its able to move or fly to space due to rocket staging

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3 years ago

the mass of earth is 6*10^24 and of mars is 6*10^23 and gravitational force is 6.67*10^16 ,find the distance between their centr

enot [183]

Answer:

6× 10¹⁰ metres

Explanation:

F=(G×M1×M2)/r²

(6.67×10¹⁶)=((6.67×10^-11)(6×10²⁴)(6×10²³))/r²

r²=3.6×10²¹

Therefore r=6×10¹⁰ metres

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3 years ago

A vertical spring has a spring constant of

VikaD [51]

Hookes law states F=kX where F is the force applied, k is the spring constant, and X is the extension of the spring from its resting point.

Substituting the values in, we get:

F=100*(0.65-0.5)=100*0.15=15N

8 0

3 years ago

How does the electric force between two charged participles change if one particle’s charge is reduced by a factor of 3?

Eva8 [605]

Answer:

ick

Explanation:

Me down daddy

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3 years ago

A diver shines a flashlight upward from beneath the water at a 35.2° angle to the vertical. at what angle does the light leave t

AnnyKZ [126]

We can solve the problem by using Snell's law:
$n_i \sin \theta_i = n_r \sin \theta_r$
where
$n_i$ is the refractive index of the first medium (in this case, air, so $n_i = 1.00$ )
$n_r$ is the refractive index of the second medium (in this case, water, so $n_r = 1.33$ )
$\theta _i$ is the angle of incidence of the light, with respect to the vertical, so $\theta_i = 35.2^{\circ}$
$\theta_r$ is the angle of refraction of the light inside the water, with respect to the vertical

Re-arranging the equation and using the data of the problem, we can find the the angle of refraction of the light inside the water:
$\theta_r = \arcsin ( \frac{n_i}{n_r} \sin \theta_i )=\arcsin ( \frac{1.00}{1.33} \sin 35.2^{\circ} )=25.7^{\circ}$

3 0

4 years ago