Each piece will have 1/4 of the mass of the original big cube, but its density will be the same.
Density is a property of a substance, no matter how much or how little of it you have.
A speck of it on the tip of your pinky and a supertankerful of the same substance have the same density.
Answer:
b. 4 ms-2
Explanation:
acceleration = velocity / time
The wire connected to the DC source doesn't emit electromagnetic waves.
The electromagnetic wave is an oscillation of electric fields and magnets field that sustains each other, this wave time has the characteristics that it can travel without a material medium, for which they are of extreme importance.
It is caused by DC sources such as batteries only having a constant voltage, it is different from AC sources which have different voltage over time, AC voltage can induce the wire because AC sources have magnetic flux change. DC sources don't have magnetic flux change so they don't emit electromagnetic waves.
Learn more electromagnetic waves at: brainly.com/question/25847009
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<h2> Charge = 25.9
</h2>
Explanation:
Given,
The average current (I) = 
and
Time period (T) = 0.133 s
The charge is calculated by multiplying the current to the time period.
Hence,
To find, the charge delivered to the ground by the lightning bolt(Q) = ?
By applying the formula of charge that is-
Charge(Q) = 
∴ Charge(Q) = 
= 25.89111 
= 25.9 
<h3>Thus, the charge of 25.9
is delivered to the ground by the lightning bolt.</h3>
Changes in the earths ability to reflect sunlight (called the 'albeido') due to clouds and other weather like ice formations set up feedback loops that prevent a perfect equlibrium with the sun.
