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3 years ago

What kind of energy does each phase of the pendulum represent

Physics

2 answers:

adelina 88 [10]3 years ago

3 0

Answer:

Kinetic

Explanation:

Potienal is building up power where kinetic means moving

ElenaW [278]3 years ago

3 0

Answer:

Position A and Position C = Potential energy

Position B = Kinetic energy

Explanation:

When pendulum moves to and fro about its mean position then the velocity of pendulum is maximum at its mean position or at its lowest position of path.

As it move away from its lowest position the velocity of pendulum keep on decreasing and at the end it comes to rest.

So at the extreme ends of the path the pendulum will come to rest so its kinetic energy is zero and all its energy will become potential energy.

So here we know that in the given figure position A and Position C is extreme positions and the energy of that position is potential energy.

While at the lowest position all its energy becomes kinetic energy

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What is the concentration of the 100 g of solution having 25 g of solute?

Alexus [3.1K]

Answer:

70%

Explanation:

it's 70% hope it helps

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2 years ago

Do objects tend to stay moving because of a force called Interia

ahrayia [7]

The first law of Newton’s law state an object in motion will stay in motion and an object at rest will stay at rest unless acted upon with an outside force. Other know as the law of inertia so yes it does

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3 years ago

If r1 < r2 < r3, and if these resistors are connected in series in a circuit, which one dissipates the most power

Vesnalui [34]

All three have the same current, so that is not a factor. Wattage (power) is E*I or i^2 R. The higher the resistance, the more power dissipated. The answer is R3 because it has the highest resistance.
R3 <<<< ===== answer.

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3 years ago

An object has 90,000 J of kinetic energy and is moving at 12 m/s. What is the objects mass?

trapecia [35]

Answer:

plug it into your calculator

Explanation:

Kinetic energy = KE = Joules = J

KE= 1/2mv^2

90,000 = 1/2 m (12^2)

180,000 = m (144)

m = 180,000 / 144

4 0

3 years ago

Determine experimentally which rotational axis yields the maximum rotational inertia (i.e., moment of inertia) and which yields

Law Incorporation [45]

Answer:

the maximum is I₁ axis of rotation at the end

the minimum moment is I₂ axis of rotation at the center of mass

Explanation:

For this exercise we use the definition moment of inertia

I = ∫ r² dm

for bodies of high symmetry it is tabulated; In this case we can approximate a broomstick to a thin rod, the moment of inertia with respect to a perpendicular axis when varying are

at one end

I₁ = ⅓ mL²

in in center

I₂ = $\frac{1}{12}$ m L²

There is another possible axis of rotation around the axis of the broom, in this case we have a solid cylinder

I₃ = $\frac{1}{2}$ m r²

remember that the diameter of the broom is much smaller than its length, therefore this moment of inertia is very small

when examining the different moments of inertia:

the maximum is I₁ axis of rotation at the end

the minimum moment is I₂ axis of rotation at the center of mass

3 0

3 years ago