2 years ago

What best describes a reference fram?

Physics

1 answer:

finlep [7]2 years ago

7 0

Answer:

A reference frame is that frame to which the qualities of an object are related:

For instance - an object may described by - mass, speed, acceleration, size, etc,

It is important to remember that Newton's Laws of motion do not hold in accelerated reference frames -

Einstein's laws of special relativity are only true in frames that move with contant speed to one another

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10_ south of west is a way measure of the direction between south<br>and west.

k0ka [10]

Answer:

South west or SW

Explanation:

it's in between south and west

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3 years ago

What activity in orienteering can improve a player's math skills?

erica [24]

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3 years ago

A Carnot engine operates with an efficiency of 26.0% when the temperature of its cold reservoir is 281 K. Assuming that the temp

VLD [36.1K]

Answer:

The temperature of cold reservoir should be 246.818 K for efficiency of 35%

Explanation:

In first case we have given efficiency of Carnot engine = 26 % = 0.26

Temperature of cold reservoir $T_L=281K$

We know that efficiency of Carnot engine is given by

$\eta =1-\frac{T_L}{T_H}$

$0.26 =1-\frac{281}{T_H}$

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For second Carnot engine efficiency is given as 35% = 0.35

And temperature of hot reservoir is same so $T_H=379.72K$

So $0.35=1-\frac{T_L}{379.72}$

$T_L=246.818K$

So the temperature of cold reservoir should be 246.818 K for efficiency of 35%

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4 years ago

Two identical space probes are orbiting Jupiter. Scientists determine that one of the space probes has a larger gravitational fo

galina1969 [7]

If the probes are identical, then the one that feels a larger gravitational
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3 years ago

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Rudiy27

Answer:

velocity is the answer of this question.

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3 years ago

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