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stiks02 [169]
3 years ago
6

Match each Sun-Earth-Moon alignment diagram to the corresponding eclipse image, as seen from Earth.

Physics
1 answer:
zvonat [6]3 years ago
5 0

Answer:

Explanation:

Here ya go

I've also corrected the moon position relative to the penumbra. It's much more representative to the actual geometry but still not very accurate because of the vast distances between moon, earth and sun. Could not do much with the quarter moon with realism because of scales.

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In 3 seconds, a wave generator produces 15 pulses that spread over a distance of 45 centimeters. Calculate its velocity.
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We don't even need to know how many pulses were produced
in those 3 seconds.

The beginning of the first pulse took 3 seconds to travel
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Its speed is    (45 cm) / (3 sec)  =  15 cm/sec.

6 0
3 years ago
Two electrodes, separated by a distance d, in a vacuum are maintained at a constant potential difference. An electron, accelerat
Alja [10]

Answer:

Explanation:

Given that, the distance between the electrode is d.

The electron kinetic energy is Ek when the electrode are at distance "d" apart.

So, we want to find the K.E when that are at d/3 distance apart.

K.E = ½mv²

Note: the mass doesn't change, it is only the velocity that change.

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K.E = Work done by the electron

K.E = F × d

K.E = W = ma × d

Let assume that if is constant acceleration

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Then,

K.E is directly proportional to d

So, as d increase K.E increase and as d decreases K.E decreases.

So,

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K.E_1 = E_k

d_1 = d

d_2 = d/3

K.E_2 = K.E_1 / d_1 × d_2

K.E_2 = E_k × ⅓d / d

Then,

K.E_2 = ⅓E_k

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7 0
3 years ago
If a car is accelerating downhill under a net force of 3674 N, what force must the brakes exert to cause the car to have constan
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Answer:

Explanation:

hi

5 0
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It would be conductors

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