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DerKrebs [107]
3 years ago
12

Please can i have help with this question ​

Physics
1 answer:
kenny6666 [7]3 years ago
8 0
Opposites attract so north goes to south and Vice versa. When the same poles are facing each other they push away when they are opposites they attract.
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<h2>\large{\underbrace{\underline{\fcolorbox{White}{pink}{\bf{ANSWER♥︎}}}}}</h2><h3>kinetic energy is given as</h3>

KE = (0.5) m v²

given that : v = speed of the bottle in each case = 4 m/s when m = 0.125 kg

KE = (0.5) m v² = (0.5) (0.125) (4)² = 1 J

when m = 0.250 kg KE = (0.5) m v² = (0.5) (0.250) (4)² = 2 J

when m = 0.375 kg KE = (0.5) m v² = (0.5) (0.375) (4)² = 3 J

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3 years ago
A slingshot fires a pebble from the top of a building at a speed of 15.0 m/s. The building is 30.0 m tall. Ignoring air resistan
dimaraw [331]

Answer:

V=28.5m/s

b=V=28.5m/s

c=V=28.5m/s

Explanation:

A slingshot fires a pebble from the top of a building at a speed of 15.0 m/s. The building is 30.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground when the pebble is fired.

(a) horizontally,

(b) vertically straight up,

(c) vertically straight down.

u=15m/s

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v=?

yf=0

system=pebble+earth

workdone=0

chnage in energy=0

ki+Ui=Kf+Ui

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U=potential energy

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A room with translucent windows that include some colored parts. use the drop-down menus the complete the statements about the i
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(a)The window panes are transparent  

(b)The colors of the panes are due to the wavelengths of light that the glass allows to pass through.

<h3>What are trasparent glasses?</h3>

The glasses which allows the light rays to pass through them are called as the transparent glasses.

or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye.[1] Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm),

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Hence  the  window panes are transparent the colors of the panes are due to the wavelengths of light that the glass allows to pass through.

To know more about trasparent glasses follow

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