Choose the statements that correctly describe a scientific theory. Select all that apply.

Physics

1 answer:

Basile [38]2 years ago

4 0

The statement that correctly describes a scientific theory is option b.

A scientific theory is a thorough justification for a certain phenomenon in the natural world that is based on a body of data that has been repeatedly confirmed via observation and experiment. These concepts are accurate explanations of reality rather than just "guesses." It is possible to test scientific hypotheses and produce predictions that can be refuted.
Option a is incorrect because a scientific theory is supported by data and evidence.
Option c is incorrect because a scientific theory is not based on opinions but rather facts.
Option d is incorrect because a scientific theory is not likely to change over time with new incoming data.

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The acceleration of The Munster’s car is 9.71 m/s2 when he applies 5050 N of net force (by way of the engine). What is the mass

Ainat [17]

Given that,

Acceleration, a = 9.71 m/s²

Force, F = 5050 N

mass, m = ?

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F=ma

m= F/a

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3 years ago

A tuning fork of frequency 254 Hz and an open orang pipe of slightly lower frequency are at 15oC. When

katovenus [111]

The temperature of the air in the open orang pipe has been altered by 18.73° C

The frequency of an open orang pipe is estimated by using the formula:

$\mathbf{f = \dfrac{v}{2L}}$

Then, the combination of the frequency of the tuning fork and the open orang pipe is:

$\mathbf{254 - \dfrac{v}{2L} }$

These combinations of frequency produce 4 beats per sound.

i.e.

$\mathbf{254 - \dfrac{v}{2L} =4}$

$\mathbf{ \dfrac{v}{2L} = 254-4 }$

$\mathbf{ \dfrac{v}{2L} = 250 ----(1)}$

When it is altered, the beats first diminish and increase again by 4.

i.e.

$\mathbf{ \dfrac{v'}{2L} = 254+4 }$

$\mathbf{ \dfrac{v'}{2L} = 258 --- (2) }$

If we equate both equations (1) and (2) together, we have:

$\mathbf{\dfrac{v'}{v}= \dfrac{258}{250}}$

However, from our previous knowledge, we understand that the velocity of an object varies directly proportional to the square root of its temperature.

Hence;