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Nezavi [6.7K]
3 years ago
11

On the weather map, what does the symbol shown below represent?

Physics
1 answer:
Evgen [1.6K]3 years ago
8 0

Answer:

wind speed i think where i live?

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If you cut a metal cube into four pieces, do the new pieces have a different mass than the original cube? Do the new pieces have
Gre4nikov [31]
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. 
3 0
3 years ago
9. What is the acceleration of a boat if it starts from rest and then reaches a velocity of 24 m/s in 6.0 s?
Tom [10]

Answer:

b. 4 ms-2

Explanation:

acceleration = velocity / time

4 0
2 years ago
Does a wire connected to a dc source, such as a battery, emit an electromagnetic wave?
Lina20 [59]

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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7 0
2 years ago
An especially violent lightning bolt has an average current of 1.89 x 103 A lasting 0.133 s. How much charge is delivered to the
Rasek [7]
<h2> Charge = 25.9 Ampsec^{-1}</h2>

Explanation:

Given,

The average current (I) = {1.89} \times {103 A} 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) = Current(I) \times Time(T)

∴ Charge(Q) = {1.89} \times {103 A}\times 0.133 s

= 25.89111 As^{-1}

= 25.9 As^{-}

<h3>Thus, the charge of 25.9 Ampsec^{-1} is delivered to the ground by the lightning bolt.</h3>
3 0
4 years ago
Why the earth is not in thermal equilibrium with the sun?
mr_godi [17]
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.
4 0
4 years ago
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