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Julli [10]
3 years ago
15

A Cephied is a star that belongs to a class of yellow supergiant pulsating stars; these stars vary periodically in brightness, a

nd the relationship between their periods and ________ is useful in deriving distances to them
Physics
1 answer:
mihalych1998 [28]3 years ago
4 0

Luminosities

Thanks to this relationship between period and luminosity, a Cepheid provide a practical and accurate method to evaluate their absolute magnitude. Once this is known, it is possible to know the distance of the Cepheid, calculating the difference with respect to the apparent magnitude.

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Aaron's normal response time to apply the car brakes is 0.7 seconds. Aaron's response time doubles when he is tired. How far wil
Likurg_2 [28]

Aaron's car is moving at speed of 30 m/s

His reaction time is given as 0.7 s

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Now we need to find the distance covered by his car when he is tired during the time when he react to apply brakes

So here since during this time speed is given as constant so we can say that distance covered can be product of speed and time

So here we can use

d = v*t

d = 30 * 1.4

d = 42 m

So the car will move to 42 m during the time when he apply brakes

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Can tectonic plates switch places with other tectonic plates, Im generally curious
Bingel [31]

Answer:

Earth's crust, called the lithosphere, consists of 15 to 20 moving tectonic plates. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.

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4 0
3 years ago
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If a magnet is broken into two pieces, what happens to the magnetic poles?
Nikitich [7]

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Each piece will have a north pole and a south pole

Explanation:

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The counter is 1.5 m high, and the bowl has a mass of 0.5 kg. How much gravitational energy is stored in the bowl-earth system?
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