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melamori03 [73]
2 years ago
6

Q: How can variations in the rate of interaction between the hydrosphere and the atmosphere result in global climate change?

Physics
1 answer:
Evgesh-ka [11]2 years ago
6 0
D is the correct answer on edge
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A disk-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. After the power is shut off, a man continu
kolbaska11 [484]

Answer:

τ=0.060 N.m

Explanation:

By kinematics:

\omega f = \omega o-\alpha*t

Solving for α:

\alpha=\frac{\omega o-\omega f}{t}

where ωo = 600*2*π/60;   ωf = 0;    t=10s

\alpha=6.283rad/s^2

The sum of torque is:

\tau=I*\alpha

\tau=M*R^2/2*\alpha

\tau=0.060 N.m

8 0
3 years ago
Can Volcanoes create new landforms such as mountains
Rom4ik [11]
Yes,when they erupt witch leaves it unactive with makes it mountin
5 0
3 years ago
An organism’s scientific name consists of a. its class name and its family name. b. its kingdom name and its phylum name. c. its
mr Goodwill [35]
An organism scientific name consist of : C. its genus name and its species name
The first part of the name is taken from the Genus and the second part of the name is taken from the species
hope this helps

7 0
3 years ago
5. This break-dancer's speed is not changing as he spins on his head, but he is
n200080 [17]

Answer:

the velocity is changing therefore the acceleration is changing too.

Explanation:

8 0
3 years ago
Una cuerda de 20 pies se estira entre dos arboles. Un peso W cuelga del centro de la cuerda hace que el punto medio de la misma
Galina-37 [17]

Answer:

La magnitud de la masa del peso es 78.447 libras-masa.

Explanation:

La tensión es una fuerza de reacción de la cuerda causada por la acción de una fuerza externa. En este caso, esa fuerza externa es el peso que cuelga en el centro de la cuerda. Abajo hemos adjuntado una representación simplificada del enunciado.

Por las leyes de Newton, tenemos la siguiente ecuación de equilibrio conformada por tres fuerzas:

\vec T_{1} + \vec T_{2} + \vec W = (0, 0)\, [N] (1)

Donde:

\vec T_{1}, \vec T_{2} - Tensiones a cada lado de la cuerda, en newtons.

\vec W- Peso, en newtons.

Si sabemos que \vec T_{1} = T\cdot (\cos \alpha, \sin \alpha), \vec T_{2} = T\cdot (-\cos \alpha, \sin \alpha) y \vec W = W\cdot (0, -1), entonces tenemos la siguiente ecuación vectorial:

T\cdot (\cos \alpha, \sin \alpha) + T\cdot (-\cos\alpha, \sin \alpha) + W\cdot (0, -1) = (0,0)

T\cdot (0, 2\cdot \sin \alpha) = W\cdot (0, 1)

Esto permite reducir la anterior expresión a una fórmula escalar:

2\cdot T\cdot \sin \alpha = W

Donde \alpha es el ángulo de inclinación de la cuerda, medido en grados sexagesimales.

El ángulo de inclinación de la cuerda se determina mediante la siguiente fórmula trigonométrica inversa es:

\alpha = \tan^{-1} \left(\frac{2\,ft}{10\,ft}\right)

\alpha \approx 11.310^{\circ}

Si conocemos que \alpha \approx 11.310^{\circ} y T = 200\,lbf, entonces la magnitud del peso es:

W = 2\cdot (200\,lb)\cdot \sin 11.310^{\circ}

W \approx 78.447\,lbf

En el Sistema Imperial, las fuerzas son medidas en forma gravitacional, entonces la magnitud de la fuerza gravitacional del peso equivale a la magnitud de su masa. En síntesis, la magnitud de la masa es 78.447\,lbm.

La magnitud de la masa del peso es 78.447 libras-masa.

7 0
3 years ago
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