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NemiM [27]
3 years ago
11

The picture below shows the position of Earth and two stars.

Physics
2 answers:
alexgriva [62]3 years ago
8 0

The answer is:

18 years.

The explanation:

when Star 1 is 34 light years from Earth and Star 2 is 52 light years from Earth. that means the distance between star 1 and star 2 is 52-34 = 18 years so, If Star 2 explodes as a supernova so,  the explosion would take 18 years to be seen from a planet orbiting Star 1.


abruzzese [7]3 years ago
3 0
The picture below shows the position of Earth and two stars.Star 1 is 34 light years from Earth and Star 2 is 52 light years from Earth. If Star 2 explodes as a supernova, I believe that A. 18 light years would pass before the explosion is seen from a planet orbiting Star 1.
But I am not sure, sorry. :/
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The net external force on a golf cart is 411 N north of tha cart has a total mass of 281 kg what is tha cart acceleration
Alisiya [41]

1.46m/s²

Explanation:

Given parameters:

Mass of cart = 281kg

Net external force = 411N

Unknown:

Acceleration of the cart = ?

Solution:

According to newton's second law " the net force on a car is the product of its mass and acceleration";

            Force = mass x acceleration

Since acceleration of the cart is unknown;

     Acceleration = \frac{force}{mass} = \frac{411}{281}

  Acceleration = 1.46m/s²

learn more:

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3 years ago
Two vectors have magnitudes of 10 and 15. The angle between them when they are drawn with their tails at the same point is 65. T
IrinaK [193]

Two vectors have magnitudes of 10 and 15. The angle between them when they are drawn with their tails at the same point is 65. The component of the longer vector along the line of the shorter is 6.33 .

A vector is a quantity or phenomenon that has two independent properties: magnitude and direction. The term also denotes the mathematical or geometrical representation of such a quantity. Examples of vectors in nature are velocity, momentum, force, electromagnetic fields, and weight.

The taller component will be 15 . There will be two components taller component , one in the direction of shorter component and other perpendicular to the shorter wavelength .

The component of longer wavelength in the direction of shorter will be  

= 15 cos (theta ) = 15 cos (65) = 6.33

where theta  is the angle between both the vectors

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3 0
2 years ago
The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?
mestny [16]
The increase in entropy is directly related to the increase in temperature.
5 0
3 years ago
If the load on Pulley E is 20N, how much effort is needed to life it?
Mariana [72]
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7 0
4 years ago
What is the radioactive element used in nuclear war heads​
diamong [38]

Answer:

Plutonium, has formula Pu with molecular mass 94

Explanation:

.

7 0
3 years ago
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