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3 years ago

Which of the following does not affect the apparent brightness of a star.

Physics

2 answers:

Tamiku [17]3 years ago

4 0

I would say that it is a how old the star is

Zigmanuir [339]3 years ago

3 0

A) how old it is :)))

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a student places 8 similar coins in a pile . the height of the pile of coins is 2.4 cm calculate the average thickness of one co

Anon25 [30]

Answer:

0.3 cm

Explanation:

$\frac{2.4}{8} \\ = 0.3$

7 0

3 years ago

Question : Is it possible for heat to transfer from T3 to T1 and why?

fomenos

Answer:

no its a negative

Explanation:

because they both are positive

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3 years ago

Why does Mars not have an electric field and why

tangare [24]

Answer:

The difference lies in the planets' respective magnetic fields, because while Earth's magnetism comes from within, Mars' does not. Earth's magnetism comes from its core, where molten, electrically conducting iron flows beneath the crust. Its magnetic field is global, meaning it surrounds the entire planet

Explanation:

thanks for question

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3 years ago

What is the angle of deviation in a plane mirror at normal incidence?

Tems11 [23]

Answer:

The deviation of a mirror is equal to twice the angle of incidence.The total angle between the straight-line path and the reflected ray is twice the angle of incidence. This is called the deviation of the light and measures the angle at which the light has strayed from its initial straight-line path.

HOPE IT HELPS :)

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7 0

3 years ago

A chef places an open sack of flour on a kitchen scale. The scale reading of

Novay_Z [31]

Answer:

Explanation:

Given

Initial reading on scale =40 N

So, we can conclude that weight of the sack is 40 N

After this a 10 N force is applied upward on the sack such that the net force becomes (40-10) N downward (because downward force is more)

This net downward force is the resultant of earth graviational pull and the applied upward force.

So, this downward force acts on the machine which inturn applies an upaward force of same magnitude called Normal reaction.

This situation can be diagramatically represented by figure given below

4 0

3 years ago