Answer choice: [C]:
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V = d / t = 1800 mi / 40 min = 180 mi / 40 min = 45 mi / min .
Which very well could be "Answer choice: [C]: 45 m/min" ; except, this answer choice may have been written incorrectly—and should read:
"45 m/min."
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Now, notice that all the answer choices given are in "meters" per (unit time—seconds or mins.
So, we need to convert:
45 mi. to "meters", or "m".
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Note the following conversions:
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1 mi. = 1750 yd
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3 ft. = 1 yd.
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1 m = 3.2 ft.
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So, 1 mi. = ? m ;
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1 mi * ( 1760 yd/ mi) * (3 ft / 1 yd) * ( 1m / 3.2 ft) = _?_ m ?
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On the "left hand side" , the units of "mi", "yd", and "ft" ; cancel to "1" ;
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and we are left with:
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[(1760 * 3)] / [(3)*(3.2)] m = (5280 / 9.6) m = 550 m .
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So, we have: 550 m / min ; which match NONE of the answer choices.
However, it is possible that choices A or B, which are given in "m/sec" (meters per second); are among the correct choices.
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So, we convert: 550 m / min to: "m / sec " ;
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( 550 m/ min)*(1 min/ 60 sec) = (550/60) m/sec = (55/6) m/ sec
= 9 1/6 m / sec .
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which is: None of the above.
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Unless the answer choices were written incorrectly.
The speed of Object A changes but Object B travels at a constant speed.
the 3rd one is the correct answer
Answer: recycaling
Explanation:
because you preventing from thing that live in the sea dying or suffercating
I Hope this helps
the heat content of a material
Temperature measures the heat content of a material.
Heat in Physics is an energy that is in a process of transfer between a system and its surroundings other than the transfer of matter. In Thermodynamics, a science that deals with the study of heat and temperature and their relationship to energy and work, finer details of the process is unpredictable. Heat flows from a hotter to a colder body when there is a physical pathway. This pathway is suitable and can be direct such as radiation and conduction. It can also be indirect as in convective circulation.
Dehydration synthesis removed water
hydrolysis add water
