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Yuki888 [10]
3 years ago
11

lightning is actually an enormous display of the concept of A.chemical heating B.solar energy C.magnetism D.grounding

Physics
1 answer:
allsm [11]3 years ago
5 0

Answer:

D) Grounding

Explanation:

The potential difference between cloud and ground leads to ionization of the atmosphere and resulting conduction through the air often to ground (although it can be between clouds at different potentials. I would say grounding, like the spark when you touch a hot battery terminal to ground on a car.

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A hammer falls from a construction worker's hand 30m above the ground at the same time that a filled soft drink can is projected
drek231 [11]

For harmer:-

initial velocity=u=0m/s

Acceleration due to gravity=10m/s^2

Now

\\ \sf\longmapsto s=ut+\dfrac{1}{2}gt^2

\\ \sf\longmapsto s=0t+\dfrac{1}{2}(10)t^2

\\ \sf\longmapsto s=5t^2\dots(1)

For soft drink:-

u=24m/s

\\ \sf\longmapsto 30-s=(24)t+\dfrac{1}{2}(10)t^2

Using eq(1)

\\ \sf\longmapsto 30-5t^2=24t-5t^2

\\ \sf\longmapsto 24t=30

\\ \sf\longmapsto t=\dfrac{30}{24}

\\ \sf\longmapsto t=1.2s

After 1.2s they will meet.

Now

putting t in eq(1)

\\ \sf\longmapsto s=5t^2=5(1.2)^2=5(1.44)=7.2m

At the height of 7.2m they will meet

3 0
3 years ago
what kinds of investigations might have led to our current understanding of matter and energy? why is it important for scientist
lana66690 [7]

The kind of investigations might have led to our current understanding of matter and energy is research and measurement.

It is important for scientists to use the same scientific method and consistent measurement units in order to get the correct value while analayzing.

<h3>What is matter?</h3>

The matter has volume and space occupied.

When conceivable the researcher endeavors to test his speculations via painstakingly planned and controlled tests that will yield quantitative instead of subjective outcomes.

Thus, the kind of investigations might have led to our current understanding of matter and energy is research and measurement.

It is important for scientists to use the same scientific method and consistent measurement units in order to get the correct value while analayzing.

Learn more about matter.

brainly.com/question/4513444

#SPJ1

6 0
2 years ago
Differents between foundamental quantity and derived quantities
Alborosie

Answer:

fundamental quantity can simply be defined as an independent quantity while derived quantity is dependent i.e. the derive their quantities from the fundamental

6 0
3 years ago
First sign of lung cancer
quester [9]

the most common first sign of lung cancer is a constant cough. there could also be coughing up blood or reddish colored spit, and chest pain when you laugh, cough, and breathe.

5 0
3 years ago
Read 2 more answers
Derive the expression for the equivalent resistance of three resistors in[1] paraleli [2] series
sergeinik [125]
The total resistance of an electric circuit with resistors widener series in the sum of the individual resistances:
Each resistor in a series circuit has a same amount of current flowing through it.
Each resistor in a parallel circuit has the same for voltage of the source applied to it.

When was this is are connected in parallel, the supply current is equal to the sum of the current through each resistor. In other words the currents in the branches of a parallel circuit add up to the supply current. When resistors are connected in parallel they have the same potential differences across them.
8 0
4 years ago
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