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postnew [5]
2 years ago
14

How much potintial energy is in a closed system where the height of the object is 2 m, and the mass is 10 kg?

Physics
2 answers:
Dovator [93]2 years ago
8 0

Answer:

<u>Answer</u><u>:</u><u> </u><u>B</u><u>.</u><u> </u><u>1</u><u>9</u><u>6</u><u> </u><u>J</u>

• potential energy is calculated from the formula:

{ \tt{p.e = mgh}}

• m = 10 kg

• g = 9.81 m/s²

• h = 2m

→ Substitute:

{ \tt{p.e = (10) \times (2) \times (9.81)}} \\  \\ → \: { \boxed{ \tt{potential \: energy = 196.2 \:  \: joules}}}

Lorico [155]2 years ago
6 0

Answer:

D. 196 J

Explanation:

PE=mgh=10×9.8×2=196J

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Radio communications were severely Distributed last week And the local newspaper says that solar activity is to blame . Which ty
Juliette [100K]

Answer:

Solar Flares and Prominences

Explanation:

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Solar Flare  are electromagnetic energy built up in the sun atmosphere .These energy travel with the speed of light and affect outer atmosphere of earth. These increased level of X rays and ultraviolet rays ions the layer of ionosphere which becomes superionised. thus causing destructive interference.

The radio waves travel in ionosphere and  frequently collide with electron lose energy and completely blackout.

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8 0
3 years ago
a hiker walks 200 m west and then walks 100 m north in what direction is her resulting displacement draw to show your answer​
Sliva [168]

Answer:

The direction of the displacement is in North-West.

Explanation:

Resultant displacement D is

=\sqrt{(200)^{2} + (100)^{2} } \\=223.60m                        

Here the direction is

\Theta =tan^{^{-1}}\left ( \frac{100}{200} \right )\\\Theta =26.6^{o}

Then the direction is 26.6^{o} North-west.            

5 0
2 years ago
HELP ME! PLEASE! SOMEONE! THIS QUESTION IS VERY HARD! THERE ARE 3 ANSWERS! HELP ME PLEASE! MAKE SURE TO EXPALIN
blondinia [14]

Answer:

search up the kinetic energy and potential energy etc. then take them and look at the characteristica are they the same? What makes them similar? Why are they different ? How? Then add the chemical nuclear and electrical changes it creates. Now the rest! There you’ve got this! If you need support I’m here! Hope this helped!

Explanation:

6 0
2 years ago
g You shine orange laser light that has a wavelength of 600 nm through a narrow slit. The slit forms a diffraction pattern on a
zimovet [89]

Answer:

 λ = 3 10⁻⁷ m,   UV laser

Explanation:

The diffraction phenomenon is described by the expression

         a sin θ = m λ

let's use trigonometry

         tan θ = y / L

as in this phenomenon the angles are small

        tan θ = \frac{sin \ \theta}{cos \ \theta} = sin θ

        sin θ = y / L

we substitute

      a y / L = m  λ

let's apply this equation to the initial data

       a  0.04 / L = 1 600 10⁻⁹

       a / L = 1.5 10⁻⁵

now they tell us that we change the laser and we have y = 0.04 m for m = 2

      a 0.04 / L = 2  λ

       a / L = 50  λ

we solve the two expression is

         1.5 10⁻⁵ = 50  λ

          λ = 1.5 10⁻⁵ / 50

          λ = 3 10⁻⁷ m

    UV laser

3 0
2 years ago
the diagram shows a ray of light striking a mirror that is above a sink full of water explain what what will happen to the beam
ratelena [41]
The water will reflect some of the light
6 0
3 years ago
Read 2 more answers
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