3 years ago

Discuss how metallic bonding accounts for the common properties of metals

1 answer:

8 0

Metals are goods conductors of electricity because the electrons in the electrons sea are free to flow and carry electric currents. Metals are ductile and malleable because local bonds can be easily broken and reformed.

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When low on gasoline, is it better to increase or decrease the speed of the vehicle? Explain.

sergiy2304 [10]

Yeah!! It is better to decrease the speed of the vehicle so the ejection of gases would happen in slow manner.... then you can save your gasoline

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3 years ago

A video game includes an asteroid that is programmed to move in a straight line across a 17-inch monitor according to the equati

Ainat [17]

Answer:

The asteroid's acceleration at this point is $2.71\ m/s^2$

Explanation:

The equation that governs the trajectory of asteroid is given by :

$x=6.5t-2.3t^3$

The velocity of asteroid is given by :

$v=\dfrac{dx}{dt}\\\\v=\dfrac{d(6.5t-2.3t^3)}{dt}\\\\v=6.5-6.9t^2$

At some point during the trip across the screen, the asteroid is at rest. It means, v = 0

So,

$6.5-6.9t^2=0\\\\t=0.971\ s$

Acceleration,

$a=\dfrac{dv}{dt}\\\\a=\dfrac{d(6.5-6.9t^2)}{dt}\\\\a=-13.8t$

Put t = 0.971 s

$a=-13.8\times 0.197\\\\a=-2.71\ m/s^2$

So, the asteroid's acceleration at this point is $2.71\ m/s^2$ and it is decelerating.

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3 years ago

two object gravitationally attract with a force of 20N.if the distance between the two object centers is doubled, then what is t

Usimov [2.4K]

Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.

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3 years ago

A tree performing photosynthesis is an example of _____________

Fittoniya [83]

Answer:Chemical

Explanation:Photosynthesis is the biochemical reaction through which all green plants, including trees, make their food to live and grow.

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3 years ago

True or False. Centripetal force holds an object towards the center of a circle.

Flura [38]

False’ because it is a force that makes a body follow a curved path

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3 years ago