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labwork
2 months ago
14

An electric dipole with dipole moment p⃗ is in a uniform electric field E⃗ . A. Find all the orientation angles of the dipole me

asured counterclockwise from the electric field direction for which the torque on the dipole is zero. B. Which part of orientation in part (a) is stable and which is unstable?
Physics
1 answer:
Maru [3.3K]2 months ago
3 0
When an electric dipole is subjected to an electric field, it experiences a torque given by the equation torque = p x E = p E sinθ, where θ represents the angle between p and E. The torque will be zero when θ equals 0, aligning both p and E, which is a stable orientation. If θ is 180°, the torque also equals zero since p and E point in opposite directions, representing an unstable orientation because even a slight deflection will revert to the stable position due to torque from the electric field.
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Find the net electric force that the two charges would exert on an electron placed at point on the xx-axis at xx = 0.200 mm. Exp
Keith_Richards [3271]

Response:

Some details are lacking in the question; here’s the complete version: A -3.0 nC point charge is positioned at the origin, while a -5.0 nC point charge exists along the x-axis at x = 0.800 m. Determine the overall electric force that the two charges would have on an electron situated at 0.200 m along the x-axis.

Clarification:

Coulomb's law applies to solve this problem as illustrated in the accompanying file.

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3 months ago
A student must design an experiment to determine the relationship between the mass of an object and the resulting acceleration w
Softa [3030]

Respuesta:

D) Deslizar un objeto de masa conocida sobre una superficie rugosa, utilizando una fuerza aplicada constante que se puede medir con un sensor de fuerza. Colocar un detector de movimiento detrás del objeto para que se pueda medir su velocidad mientras se desliza por la superficie. Repetir el experimento con diferentes fuerzas aplicadas.

Explicación:

"El detector de movimiento proporcionará datos sobre la velocidad del objeto a lo largo del tiempo mientras se desliza por la fuerza aplicada. Esta información se puede usar para calcular la aceleración del objeto. El sensor de fuerza mide la fuerza aplicada al objeto, y se conoce la masa del objeto. Por lo tanto, este experimento puede usarse para entender cómo la masa del objeto se relaciona con la fuerza neta que actúa sobre él y la aceleración que experimenta."

No puede ser A, porque se necesita que la aceleración sea registrada por la gravedad.

No puede ser B, ya que la expresión velocidad constante implica que no hay fuerza neta, lo cual es fundamental para la pregunta inicial.

No puede ser C, porque el experimento es útil para determinar el coeficiente de fricción, pero no establece cómo la masa se relaciona con la aceleración.

Debido a que se está moviendo el objeto y tenemos un detector de movimiento, podemos graficar la aceleración en función del tiempo, lo que permite obtener muchos valores de aceleración, favoreciendo así la evaluación de la relación entre aceleración y masa.

4 0
2 months ago
tas watches as his uncle changes a flat tire on a car. his uncle raises the car using a machine called a jack. each time his unc
Softa [3030]

The answer is

-Small f and large D.

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-Hence, by applying a small force to the jack, the height at which the car is elevated increases.

Machines are essential for people to amplify their strength; without them, lifting a car would be impossible.

Employing leverage or hydraulic principles, machines enhance your exerted force.

Utilizing a greater lever allows for extensive movement with minimal force, resulting in the opposite side moving shorter distances with an increased force.

7 0
3 months ago
Read 2 more answers
Alicia intends to swim to a point straight across a 100 m wide river with a current that flows at 1.2 m/s. She can swim 2.5 m/s
Sav [3153]

Answer:

θ = 61.3°

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Explanation:

Parameters given include:

Width of the river = 100 m

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The angle she needs to swim can be determined by combining the velocities, taking into account the current's influence.

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2.5cosθ - 1.2 = 0

2.5cosθ = 1.2

cosθ = 1.2/2.5

θ = cosinverse(1.2/2.5)

θ = 61.3°

4 0
3 months ago
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