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Mashcka [7]
3 years ago
5

Why was the idea of continental drift not initially accepted by many other scientists and the general public at the time?

Physics
1 answer:
Mamont248 [21]3 years ago
4 0
<span>Beyond the philosophical objections there was also initially a very serious question about what force would be sufficiently large to continue pushing large plates of rock. The original proposer of the modern theory, Wegener, has not compelling answer to this question. We now know there are convection currents in the earth mantle under the continental plates that provide such a force.</span>
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8 0
2 years ago
Without fluid friction, all objects accelerate at?
lys-0071 [83]

Answer:

Acceleration of gravity=9.8m/s/s

Explanation:

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All objects usually free fall at the same acceleration of 9.8m/s/s-this regardless of their mass. This acceleration is known as acceleration of gravity.

7 0
3 years ago
Which one of the following temperatures is equal to 5°C?
natali 33 [55]

Answer : The correct option is, (D) 278 K

Explanation :

We are given temperature 5^oC.

Now the conversion factor used for the temperature is,

K=^oC+273

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Now put the value of temperature, we get

K=5^oC+273=278K

Therefore, the temperature 278 K is equal to the 5^oC


7 0
3 years ago
Select Light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to th
Sergeu [11.5K]

Answer:

here as we increase the distance the intensity will decrease and hence the amplitude of the electric field will decrease and vice-versa

Explanation:

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Here we know that energy density of electromagnetic wave is given as

u = \frac{1}{2}\epsilon_0E_0^2

now we have

\frac{I}{c} = \frac{1}{2}\epsilon_0 E_0^2

so here we can say that intensity of the wave at the given distance from the source is given by formula

I = \frac{P}{4\pi r^2}

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7 0
2 years ago
Read 2 more answers
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