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2 years ago

Can someone help me and give me the right answer

Physics

1 answer:

olasank [31]2 years ago

5 0

Relative to the movement of the building, a mass damper on the roof of an earthquake resistant building move in the opposite direction. The correct option is C.

<h3>What is mass damper?</h3>

Mass dampers absorbs the kinetic energy of the waves, converting them into the heat energy. This heat energy is dissipated to the hydraulic fluid.

The mass dampers used on roof of the buildings are called as the tuned mass dampers. They are also known as seismic dampers. When seismic wave strikes the building, it vibrates and sways. The kinetic energy of theses waves are absorbed by movement of the mass damper. The kinetic energy is converted to the heat energy which in turn is transmitted to the fluid.

Relative to the movement of the building, a mass damper on the roof of an earthquake resistant building move in the opposite direction.

Thus, the correct option is C.

Learn more about mass dampers.

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3 years ago

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Gre4nikov [31]

Answer:

The tension is $T = 4326.7 \ N$

Explanation:

From the question we are told that

The total mass is $m = 200 \ kg$

The radius is $r = 5 \ m$

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Generally the upward force acting on the balloon is mathematically represented as

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=> $(\rho_a * V * g ) = T + mg$

=> $T = (\rho_a * V * g ) - mg$

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$V = \frac{4}{3} * \pi r^3$

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3 years ago

A liquid has a volume of 100 cm and a mass of 85g.

djyliett [7]

Answer:

B. Its density is lower than that of water

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density of water is 1 g/cm^3 which is greater than the density of the given liquid ( 0.85 g/cm^3 )

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2 years ago

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