Describe briefly one problem caused by the expansion of metals.

Physics

1 answer:

lozanna [386]2 years ago

3 0

Answer:

The expansion and contraction of materials can also cause problems. For example, bridges expand in the summer heat and need special joints to stop them bending out of shape.A bimetallic strip has two metal strips glued together. One of these metals expands more for each degree temperature rise than that other.

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<span>7.21 ft/s^2

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3 years ago

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kati45 [8]

Answer:

Mass, m = 665.77 kg

Explanation:

The question says that "If you try to smuggle gold bars by filling your backpack, whose dimensions are 56 cm * 28 cm * 22 cm, what would be its mass? "

The dimension of gold bar is 56 cm×28 cm×22 cm

We know that the density of gold is 19.3 g/cm³

The mas per unit volume of a material is called its density. It can be given by :

$d=\dfrac{m}{V}\\\\m=d\times V\\\\m=(19.3\ g/cm^3)\times (56\times 28\times 22\ cm^3)\\\\m=665772.8\ g\\\\m=665.77\ kg$

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weeeeeb [17]

Answer:

Time=distance/velocity

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2 years ago

Describe briefly one problem caused by the expansion of metals.​

Describe briefly one problem caused by the expansion of metals.