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3 years ago

Which statement best describes what energy transfer diagrams show?

Physics

2 answers:

monitta3 years ago

6 0

Answer:

Every energy transformation results in a reduction of energy

Explanation:

yanalaym [24]3 years ago

6 0

Answer:

Energy can change form, but the total amount of energy stays the same.

Explanation:

Energy transformation diagrams shows the different forms of energy which are converted into different forms.

As we know by an example of potential energy to kinetic energy conservation when a block is compressed against the spring then initially total energy is in the form of elastic potential energy of the spring.

When block is released then total potential energy of the block is converted into the kinetic energy of the block.

So here we know that in energy transfer diagram shows the transformation of energy while total energy will always remains conserved.

so here correct answer would be

Energy can change form, but the total amount of energy stays the same.

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3 years ago

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3 years ago

Which best explains how the diffraction pattern observed in young’s experiment supports the wave theory of light?.

KIM [24]

Answer: the airy pattern can only arise from wave propagation

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2 years ago

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pogonyaev

Answer:

3a, 2b,4c,1d

Explanation:

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7 0

3 years ago

A spring with a spring constant of 50 N/m is stretched 15cm. What is the force and energy associated with this stretching?

Olenka [21]

Data:
F (force) = ? (Newton)
k (<span>Constant spring force) = 50 N/m
x (</span>Spring deformation) = 15 cm → 0.15 m

Formula:
$F = k*x$

Solving:
$F = k*x$
$F = 50*0.15$
$\boxed{\boxed{F = 7.5\:N}}\end{array}}\qquad\quad\checkmark$

Data:
E (energy) = ? (joule)
k (Constant spring force) = 50 N/m
x (Spring deformation) = 15 cm → 0.15 m

Formula:
$E = \frac{k*x^2}{2}$

Solving:(Energy associated with this stretching)
$E = \frac{k*x^2}{2}$
$E = \frac{50*0.15^2}{2}$
$E = \frac{50*0.0225}{2}$
$E = \frac{1.125}{2}$
$\boxed{\boxed{E = 0.5625\:J}}\end{array}}\qquad\quad\checkmark$

7 0

3 years ago