How are stars sorted?

Physics

1 answer:

bonufazy [111]4 years ago

3 0

Answer:

Classifying Stars Astronomers sort stars in a series of "bins" using these characteristics: temperature, mass, chemical composition, and more. Based on its temperature, brightness, and mass, the Sun is classified as a middle-aged star that is in a period of its life called the "main sequence".

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What happens to the kinetic energy of an object, if its velocity is doubled?

denis-greek [22]

As Kinetic Energy=half of Mass into Velocity square so as velocity is doubled the K.E of the object is doubled..

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4 years ago

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Because of the anode heel effect, where is the intensity of the x-ray beam the greatest?

Aneli [31]

Answer:

Along the anode-cathode axis

Explanation:

The Anode Heel Effect, in an X-ray tube states that the direction of emission of X-rays by the anode along the cathode-anode axis causes a variation in the intensity of X-rays.

The geometry of the anode causes the X-ray emitted perpendicular to the cathode-anode axis less intense than the X-rays emitted towards the cathode along the axis.

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3 years ago

7) Se calcula dividiendo distancia entre tiempo

sveta [45]

Answer:

A) Rapidez

Explanation:

Speed is a scalar quantity and it is found by dividing the distance traveled by the time taken.

Speed = $\frac{distance}{time}$

Distance is the length of path covered whereas time is the duration of the travel.

Unlike velocity which is a vector, speed is a scalar quantity with only magnitude but no direction.

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3 years ago

A plane traveling north at 100.0 km/h through the air gets caught in a 40.0 km/h crosswind blowing west. This turbulence caused

Nonamiya [84]

Answer:

The velocity $\vec{v}_{c/g}$ of the cart with respect to the ground is

$\vec{v}_{c/g}=-40\hat{x}+80\hat{y}\, km/h$

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Explanation:

We have for relative motion the following expression:

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