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3 years ago

When can a theory be modified if a new type of technology allows for new observations that raise new questions?

Physics

2 answers:

Mumz [18]3 years ago

8 0

Answer: B-After new hypotheses related to the theory are tested in experiments.

Explanation:

A scientific theory can be define as a proposed explanation for a natural event or phenomena that is obtain after repeated experimental procedures. A scientific theory can be changed or amendments can be done in it's content with new discoveries and related evidences.

The implementation of the new technology can reduce the time to conduct the experiments and will also improve the accuracy. Therefore, a new hypothesis can be generated on the basis of the pre-proposed theory by utilizing the new technology.

olga nikolaevna [1]3 years ago

4 0

Answer:

id say B, but not sure

Explanation:

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Determine the amount of potential energy of a 5N book that is 1.5m high on a shelf.

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Answer:

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Explanation:

Given:

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The displacement of a 500 g mass, undergoing simple harmonic motion, is defined by the function :

Delicious77 [7]

The maximum kinetic energy, maximum potential energy and the maximum mechanical energy are equal to 7.56J.

<h3>What is simple harmonic motion?</h3>

Simple harmonic motion, in physics, repetitive movement back and forth through an equilibrium, or central, position, so that the maximum displacement on one side of this position is equal to the maximum displacement on the other side.

Simple Harmonic Motion

The given equation of the simple harmonic motion is

$x=3.5 sin (\frac{\pi }{2t} + \frac{5\pi }{4} )$

Data;

ω = π/2

k = 1.254N/m

Solving this

$\frac{dx}{dt} = -3.5 X \frac{\pi }{2} cos (\frac{x\pi t}{2}+\frac{5\pi }{4} )$

Let's calculate the maximum velocity.

$V_{m} =\frac{3.5\pi }{2}$

This is only possible when cos θ = -1

The maximum kinetic energy is

$K_m =\frac{1}{2} mv^2 = \frac{1}{2} X \frac{500}{1000} X \frac{7^2\pi ^2}^{4} ^2$

$w^2 = \frac{k}{m} \\k = w^2m\\k = \frac{\pi ^2}{4} X \frac{500}{1000} \\k =1.254 N/m$

Using the value of spring constant, we can find the maximum potential energy.

$P.E =\frac{1}{2} k x^2\\P.E =\frac{1}{2} X 1.234 X 3.5^2 \\P.E = 7.56 J$

The maximum potential energy is 7.56J

The maximum mechanical energy is equal to the sum of maximum potential energy and the maximum kinetic energy.

ME = K.E + P.E

ME = 7.56J

From the calculations above, the maximum kinetic energy, maximum potential energy and the maximum mechanical energy are equal to 7.56J.

Learn more on simple harmonic motion here;

brainly.com/question/15556430

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