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nordsb [41]
3 years ago
14

A white dwarf in a binary system suddenly flares, but in a few months it settles back to its original luminosity. This process m

ay repeat many times. What object is it?
Physics
1 answer:
Anvisha [2.4K]3 years ago
4 0

Answer:

A Pulsar

Explanation:

Such white dwarf is a Pulsar (from pulsating star). Three main features we find in this kind of celestial body

1. Incredibly high density, in a pulsar there is not what we can define as free interspace. Everything is mass

2.- Huge rotational speed (more than hundreds of kilometer) spinning at more than hundreds of kilometer per second

3.-Intense magnetic field

Combinations of thse features make pulsar emits important amount of energies with pricese periods of time. And if on earth we look a jet of electromagnetic radiation with a precise rigurosity (at pricese period of time) is because we are looking a pulsar spinning and each time the radiation appears is a turn of the pulsar

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pickupchik [31]

Answer:

time of collision is

t = 0.395 s

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Explanation:

initial speed of the ball when it is dropped down is

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now relative velocity of object with respect to ball

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now since we know that both are moving under gravity so their relative acceleration is ZERO and the relative distance between them is 6.4 m

d = v_r t

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t = 0.395 m

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h = 16.2(0.395) - \frac{1}{2}(9.81).395^2

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so they will collide at height of 5.63 m from ground

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3 years ago
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Luden [163]

Answer:

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6. A wave has a frequency of 600 Hz and is traveling at 300 m/s. What is its<br> wavelength?
Luda [366]

Answer:

0.5m

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