3 years ago

Which location is a source of magma

Physics

1 answer:

Vilka [71]3 years ago

3 0

Under the earths crust

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A 25kg mass is suspended at the end of a horizontal, massless rope that extends from a wall on the left and from the end of a se

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<h2>Answer:20.97g N,32.63g N</h2>

Explanation:

We consider the forces at the knot.

The vertical forces are

$T_{2}Sin(50^{0}})$ is the vertical component of tension $T_{2}$ at the knot.

$-25g$ is the weight of the mass $25Kg$ acting downwards.

The horizontal forces are

$-T_{1}$ is the tension in the rope acting left.

$T_{2}Cos(50^{0})$ is the horizontal component of tension $T_{2}$ acting towards right.

Since the knot has no mass,it is always in equilibrium.

So,the sum of forces acting on it will be zero.

Balancing vertical forces gives,

$T_{2}Sin(50^{0}})$ $-25g=0$

$T_{2}$ = $32.63gN$

Balancing horizontal forces gives,

$T_{2}Cos(50^{0})$ $-T_{1}=0$

$T_{1}=32.63g\times Cos(50^{0})=20.97gN$

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Average speed = (60 kilometers) / (4 hours)

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<em>Average speed = 15 km/hr</em>

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