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liberstina
11 days ago
10

For copper, ρ = 8.93 g/cm3 and M = 63.5 g/mol. Assuming one free electron per copper atom, what is the drift velocity of electro

ns in a copper wire of radius 0.625 mm carrying a current of 3 A?
Physics
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A strip 1.2 mm wide is moving at a speed of 25 cm/s through a uniform magnetic field of 5.6 t. what is the maximum hall voltage
Sav [3153]
The formula for Hall voltage Vh is:

Vh=v*B*w, where v stands for the velocity of the strip, B is the strength of the magnetic field, and w represents the width of the strip.

v=25 cm/s = 0.25 m/s
B=5.6 T
w= 1.2 mm = 0.0012 m

By substituting the values into the equation, we calculate:

Vh= 0.25*5.6*0.0012 = 0.00168 V

Thus, the maximum Hall voltage is Vh= 0.00168 V.
4 0
3 months ago
A 2600-m-high mountain is located on the equator. how much faster does a climber on top of the mountain move than a surfer at a
Maru [3345]

The climber's speed is 0.19 m/s greater than that of the surfer on the beach.

Both individuals are on Earth and share a consistent angular velocity, but their linear speeds differ.

Calculating the seconds in a day gives us t=24*60*60=86400 sec

The linear speed on the beach is computed as

V1=\frac{2πr}{t}

Where t is the duration

Substituting values into the equation leads to

V1=\frac{2π*6.4*10^6}{86400}=465.421 m/s

The mountain's linear speed is determined as

V2=\frac{2π(r+h)}{t}

Inserting values into the equation results in

V2=\frac{2π(6.4*10^6+2600}{86400}=465.61 m/s

Thus, the climber exceeding the surfer's speed is calculated as 465.61-465.421=0.19 m/s

5 0
4 months ago
Which graph represents the motion of an object traveling with a positive velocity and a negative acceleration?
Yuliya22 [3333]
Answer
graph 2

Explanation
Velocity refers to the speed at which displacement changes.
Velocity = (change in displacement)/(change in time)
In graph 2, the slope of the curve is positive, indicating a positive velocity.
Acceleration indicates how velocity varies.
The incline of the same curve (graph 2) is diminishing. This suggests that the velocity is falling, signifying negative acceleration.


5 0
3 months ago
Read 2 more answers
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
3 months ago
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