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3 years ago

5. How will you separate water from petrol?

Physics

2 answers:

ohaa [14]3 years ago

5 0

Answer:

by a seprating funnel or let it stand it will settle on its own

Explanation:

gulaghasi [49]3 years ago

5 0

Answer:

How will you separate water from petrol?

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A dart is thrown at a dartboard 3.66 m away. When the dart is released at the same height as the center of the dartboard, it hit

lapo4ka [179]

Answer:

The angle is $\theta = 15.48^o$

Explanation:

From the question we are told that

The distance of the dartboard from the dart is $d = 3.66 \ m$

The time taken is $t = 0.455 \ s$

The horizontal component of the speed of the dart is mathematically represented as

$u_x = ucos \theta$

where u is the the velocity at dart is lunched

$distance = velocity \ in \ the\ x-direction * time$

substituting values

$3.66 = ucos \theta * (0.455)$

=> $ucos \theta = 8.04 \ m/s$

From projectile kinematics the time taken by the dart can be mathematically represented as

$t = \frac{2usin \theta }{g}$

=> $usin \theta = \frac{g * t}{2 }$

$usin \theta = \frac{9.8 * 0.455}{2 }$

$usin \theta = 2.23$

=> $tan \theta = \frac{usin\theta }{ucos \theta } = \frac{2.23}{8.04}$

$\theta = tan^{-1} [0.277]$

$\theta = 15.48^o$

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Minchanka [31]

a boulder can change due to erosion and weathering. it can change shape and sometimes color, possibly.

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A material that does not conduct heat very well

MrRissso [65]

Answer:

Explanation:

Insulator is like rubber, it cant physically hold heat well

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Three energy changes that result in movements accuring in your body as sit down reading book?

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Gravitational to Kinetic to Chemical

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2 years ago

Galileo _____.

AnnZ [28]

Answer:

friction help to slow motion in other word it oppose motion, but in a frictionless environment object would move with difficult stopping point.

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