When air resistance<span> acts, acceleration during a fall </span>will<span> be less than g because </span>air resistance affects<span> the motion of the falling </span>objects<span> by slowing it down. </span>Air resistance<span> depends on two important factors - the</span>speed<span> of the </span>object<span> and its surface area. Increasing the surface area of an </span>object<span> decreases its </span>speed<span>.</span>
The surface temperature of the star increases when it changes its colour changes from red to blue.
Blue>white>yellow>orange>red
The given series is the temperature decreasing order of stars. Now our sun is considered as a yellow star.
I think the correct answer from the choices presented above is the first option. The characteristics of low energy waves are <span>long wavelengths and low frequencies. Energy is established to be indirectly proportional to wavelengths and frequencies.</span>
Without being provided a list of items, I would have to generally say that everything around you is matter. There are a few exceptions to this list, but a general rule of thumb is anything you can touch, taste, smell or hold would be considered matter. Sound, light, time (Dr. Who may disagree) and heat would be considered non-matter items.
Density = (mass) / (volume) <== MEMORIZE THIS !
1). Mass = 50 g. Volume = 100 cm³. Density = (mass) / (volume)
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2). Volume = (length) ·(width) ·(height) = (4cm) ·(4cm) ·(4cm) = 64 cm³
Mass = 672 g. Density = (mass) / (volume)
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3). Volume = (length) ·(width) ·(height)
Length = 1 meter = 100 cm
Width = 10 cm = 10 cm
Height = 22 mm = 2.2 cm
Volume = (100 cm) (10 cm) (2.2 cm) = 2,200 cm³
Mass = 42,460 g
Density = (mass) / (volume)
