Answer:
Solstice usually refers to the condition when there occurs the longest duration of day and night and during this time the north pole of the earth is tilted at the farthest distance from the location of the sun. There are two types of the solstice, namely the summer and the winter solstice.
In the case of the northern hemisphere or the upper half of the equator, the summer solstice usually occurs in June 21st and the winter solstice occurs in December 21st.
The locations on earth where the sunlight is directly incident during the time of summer solstice are the regions lying in the tropic of cancer namely, India, Mexico, the southern portion of China and the Bahamas.
<h2><em><u>Answ</u></em><em><u>er</u></em><em><u>:</u></em><em><u>-</u></em></h2>
The acceleration of the wheelchair is 
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<h3>• <u>Given</u><u>:</u><u>-</u></h3>
- Initial velocity of the wheelchair = 0 m/s
- Final velocity of the wheelchair = 1.5 m/s
- Distance covered by the wheelchair = 2 m
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<h3>
• <u>To</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>
- Acceleration of the wheelchair = ?
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<h3>• <u>Solution</u><u>:</u><u>-</u></h3>
We know,
• <u>Third</u><u> </u><u>Eq</u><u>uation</u><u> of</u><u> Motion</u><u>:</u><u>-</u>

where,
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• <u>S</u><u>u</u><u>b</u><u>s</u><u>t</u><u>i</u><u>t</u><u>u</u><u>t</u><u>i</u><u>n</u><u>g</u><u> </u><u>the</u><u> </u><u>values</u><u> </u><u>in</u><u> </u><u>th</u><u>e</u><u> </u><u>Formula</u><u>:</u><u>-</u>
➪ 
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➪ 
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ 
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
➪ 
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
★ 
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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Therefore, the acceleration of the wheelchair is 0.5625 m/s².
Answer:B,C,D
Explanation:
Thermodynamic efficiency is given by

efficiency can be increased by Keeping
constant and increasing 
Keeping
constant and decreasing
by increasing 
by decreasing
ratio
All of that fluff at the beginning is interesting, but completely irrelevant
to the question. The question is just asking for the mass of an object
that weighs 3.6N on Earth.
Weight = (mass) x (acceleration of gravity)
3.6N = (mass) x (9.8 m/s²)
Divide each side
by 9.8 m/s : Mass = 3.6N / 9.8 m/s² = <em>0.367 kilogram</em> (rounded)
Iron atoms are heavier than gold atoms
Explanation:
Chart:
Materials Specific heat
Gold 0.129
Iron 0.45
The specific heat of a substance is the amount of heat required to raise the temperature of 1g of the substance by 1K.
We can see that the more the mass of a substance, the higher the specific heat needed to raise the temperature.
Specific heat is directly proportional to the mass of substance.
It also dependent on the amount of heat supplied and the nature of the substance.
- The mass of a body is the amount of substance it contains.
- A heavier substance has more number of atoms in it.
- Since iron has a higher specific it, the atoms must be heavier or more than that of gold.
learn more:
Specific heat brainly.com/question/7210400
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