What causes the British Isles to have mild temperatures?

In the diagram below, what is the potential difference across the 3.0-ohm resistor?

Assoli18 [71]

Answer:

3V

Explanation:

From the question given above, we can see clearly that the resistors are arranged in parallel connection. Hence, the same voltage will pass through the resistors i.e

Total voltage = voltage of 3 Ω = voltage of 6 Ω

From the question given above,

The total voltage = 3 V

Therefore,

Voltage of 3 Ω = total voltage

Voltage of 3 Ω = 3V

Thus, option 3 gives the correct answer to the question.

8 0

3 years ago

¿Qué proporción deberían guardar los platos de una prensa hidráulica para que, aplicando 40N de fuerza en el plato menor, podamo

9966 [12]

Answer:

El área de la placa más grande es aproximadamente 9,81 veces el tamaño del área de la placa más pequeña

Explanation:

Los parámetros dados son;

La fuerza aplicada sobre la placa más pequeña, F = 40 N

El culo del objeto levantado en la placa más grande, m = 40 kg

El peso del objeto, W = 40 kg × 9,81 m / s² = 392,4 N

Tenemos la presión en el plato pequeño = La presión en el plato más grande

Por lo tanto;

F / A₁ = W / A₂

Dónde;

A₁ = El área del plato pequeño

A₂ = El área de la placa más grande

Por lo tanto, obtenemos;

40 N / (A₁) = 392,4 N / (A₂)

A₂ / A₁ = 392,4 N / (40 N) = 9,81

∴ A₂ = A₁ × 9,81

El área de la placa más grande, A₂ = 9,81 (9,81 m / s² ≈ g) multiplicado por el área de la placa más pequeña A₁.

3 0

3 years ago

Yung hangs a mass from a rod, sets the pendulum in simple harmonic motion, and determines the period of the pendulum. How could

yanalaym [24]

He could use a shorter rod.

8 0

3 years ago

A hydrogen-filled balloon is used to lift a 120-kg stone off the ground. The basket holding the stone has a mass of 10.0 kg . Pa

Kaylis [27]

Answer:

Radius, r = 2.88 meters.

Explanation:

It is given that,

A hydrogen-filled balloon is used to lift a 120-kg stone off the ground, m₁ = 120 kg

The basket holding the stone has a mass of 10.0 kg, m₂ = 10 kg

Mass density of air, $d=1.29\ kg/m^3$

We know that buoyant force is equal to the weight of liquid displaced i.e.

$B=mg$

$B=(m_1+m_2)g$

$B=(120+10)\times 9.8$

B = 1274 N

Also, buoyant force is given by :

$B=dVg$

$B=\dfrac{4\pi r^3dg}{3}$

$r^3=\dfrac{3B}{4\pi dg}$

$r^3=\dfrac{3\times 1274}{4\pi \times 1.29\times 9.8}$

$r=2.88\ m$

So, the minimum radius R of the balloon be in order to lift the stone off the ground is 2.88 meters. Hence, this is the required solution.

3 0

4 years ago

A string is wrapped around a pulley of radius 0.05 m and moment of inertia 0.2 kg-m2. If the string is pulled with a force F , t

musickatia [10]

Answer:

f = 8 N

Explanation:

from the question we are given the following values

radius of the pulley (r) = 0.05 m

moment of inertia (I) = 0.2 kg.m^{2}

angular acceleration (∝) = 2 rad/sec

force (f) = ?

Torque = force x radius = f x r

Torque = moment of inertia x angular acceleration = I x ∝
therefore torque = f x r = I x ∝

we can apply f x r = I x ∝ to get our force

f x 0.05 = 0.2 x 2

0.05f = 0.4

f = 8 N

6 0

3 years ago