Answer:
a. the rotor
Explanation:
A commutator is a rotary electric switch that periodically changes the direction of the current between the rotor and the external circuit. In a motor provides energy to the rotor. It consists of a cylinder composed of multiple metal contact segments on the rotor.
B. An igneous rock
C. An ore
D. An organic compound
A rock containing valuable minerals that can be mined is called an ore. The correct option is C.
Ore is a deposit of one or more valuable minerals present inside the Earth's crust.
Metals essential to industry and trade, such as copper, gold, and iron, are found in the most valuable ore deposits. Copper ore is mined for a number of industrialapplications.
Ore is natural rock or sediment that contains one or more valuable minerals, usually metals, and can be mined, treated, and sold for a profit.
Mining extracts ore from the Earth, which is then treated or refined, often through smelting, to extract valuable metals or minerals.
Crushing the rock is the first step in extractingore from it. Heap leaching, flotation, or smelting are methods for extracting ore from rock.
Thus, the correct option is C.
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Answer:
They will interfere to create a crest with an amplitude of 2.
Explanation:
If the crest of one wave meets the trough of another wave, destructive interference occurs and the combined amplitude will be less than that of either wave alone. If the amplitudes of the two waves are equal, when the crest and trough superimpose, the combined amplitude will be zero.
A. nuclei
B. nucleons
C. electrons
D. protons
E. neutrons
The correct option is C.
Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.
An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
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What will that action cause her body to do? Why?
Which of Newton’s Laws applies to this situation?
Write a paragraph which incorporates all of the above information.
Answer:
In order to get back to the ship, the astronaut must throw the belt in the opposite direction the spaceship.
From Newton's third law of motion:
For every action, there is equal and opposite reaction.
In order to throw the belt away, astronaut would apply some force which cause same amount of force acting on her body in the opposite direction which would take her towards the spaceship.