Answer:
Explanation:
The energy gained by the water:
This energy is equal to the energy lost by the iron:
In equlibrium the T of the iron and the water are the same
<em>(the negative sign is because the iron loses the energy)</em>
The British scientist Ernest Rutherford postulated the nuclear model of the atom in the early 1900s. He described his model as the atom being mostly empty space with electrons having a fixed orbit around the positively charged nucleus of the atom. The experiment he conducted to arrive at the model is known as the thin-foil experiment. He passed a narrow beam of particles through a thin film of metal foil and observed that the particles were only slightly scattered. It was with this observation that he concluded that most of the mass of a particle is concentrated only in a minute fraction of the total volume of the atom.
Answer:Hola TvT
Explanation:When the Martian polar caps were first viewed through telescopes, most scientists believed that they were made of water ice, like the polar caps on Earth. Like Earth, Mars has a North and South Pole. But while Earth's polar ice caps consist solely of water ice, Mars' polar caps are a combination of water ice and carbon dioxide ice. As the Martian seasons change, the carbon dioxide ice sublimates (vaporizes) in summer, revealing the surface, and freezes again in winter. As fall approaches, in each respective hemisphere, clouds begin to form over the polar region and the ice cap begins to grow. In spring, the polar caps recede...........Aside from ice, Mars' polar regions have some interesting geologic features. The north polar dune field is a vast concentration of sand dunes that stretches around the entire north polar cap. In some areas, the sand measures up to 500 km (300 miles) across. When the dunes begin to thaw in spring, dark spots form on their surfaces. The north polar dunes were first seen during the 1972 mapping of Mars by Mariner 9, and they are identical to dunes in Earth's desert regions..
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