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3 years ago

What is genetic energy and what is potential energy

Physics

2 answers:

miskamm [114]3 years ago

7 0

<h2>Potential VS. Kinetic ENERGY</h2>

Scientists define energy as the ability to get work done. The work can be anything from breathing to riding a bike to taking a nap. All energy can be in one of two states: potential or kinetic.

<h3 /><h3>Potential Energy</h3>

Potential Energy is stored energy that is ready to go. A race car at the starting line of a race, a bicycle on top of a hill, and students waiting to go home from school are all examples of potential energy.

<h3 /><h3>Kinetic Energy</h3>

Kinetic Energy is energy at work. A race car speeding around a corner, a bicycle rushing down a hill, and students running home from school are all examples of kinetic energy.

Alisiya [41]3 years ago

6 0

Answer:

Kinetic energy is energy that to being used or in motion while potential energy is energy being stored which is later turned into Kinetic energy

Explanation:

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In the first stage of a two-stage Carnot engine, energy is absorbed as heat Q1 at temperature T1 = 500 K, work W1 is done, and e

Nataly [62]

Answer:

Efficiency = 52%

Explanation:

Given:

First stage

heat absorbed, Q₁ at temperature T₁ = 500 K

Heat released, Q₂ at temperature T₂ = 430 K

and the work done is W₁

Second stage

Heat released, Q₂ at temperature T₂ = 430 K

Heat released, Q₃ at temperature T₃ = 240 K

and the work done is W₂

Total work done, W = W₁ + W₂

Now,

The efficiency is given as:

$\eta=\frac{\textup{Total\ work\ done}}{\textup{Energy\ provided}}$

Work done = change in heat

thus,

W₁ = Q₁ - Q₂

W₂ = Q₂ - Q₃

Thus,

$\eta=\frac{(Q_1-Q_2)\ +\ (Q_2-Q_3)}{Q_1}}$

$\eta=1-\frac{(Q_1-Q_3)}{Q_1}}$

$\eta=1-\frac{(Q_3)}{Q_1}}$

also,

$\frac{Q_1}{T_1}=\frac{Q_2}{T_2}=\frac{Q_3}{T_3}$

$\frac{T_3}{T_1}=\frac{Q_3}{Q_1}$

thus,

$\eta=1-\frac{(T_3)}{T_1}}$

thus,

$\eta=1-\frac{(240\ K)}{500\ K}}$

$\eta=0.52$

Efficiency = 52%

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3 years ago

A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal. What must be true about force

galina1969 [7]

Answer:

μ =tanθ

Explanation:=

The ratio of the force of static friction and the normal reaction is equal to tanθ. F=mgsinθ. R = mgcosθ.

μ=tanθ

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2 years ago

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Svetradugi [14.3K]

Answer:

Explanation:

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2 years ago

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77julia77 [94]

Answer:

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Explanation:

A) only Enough air to create a visible rise of the chest.

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D) clear and obvious rise of the chest, sustained over a few seconds

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