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3 years ago

Metals in group 2 on the period table most commonly form which type

Physics

1 answer:

LuckyWell [14K]3 years ago

6 0

Answer:

alkaline earth metals

Group 2 metals, the alkaline earth metals, have 2 valence electrons, and thus form M2+ ions. The halogens, Group 17 , reach a full valence shell upon reduction, and thus form X− ions

Explanation:

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It's probably because there is no gravity which ballpoint pens need for inkflow to the tip.

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3 years ago

A flashlight converts?

sammy [17]

Answer:

Energy conversion in flashlight.

Explanation:

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2 years ago

A force of 660 n stretches a certain spring a distance of 0.300 m. what is the potential energy of the spring when a 70.0 kg mas

kkurt [141]

A force of 660 n stretches a certain spring a distance of 0.300 m. what is the potential energy of the spring when a 70.0 kg mass hangs vertically from it?

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3 years ago

An ore car of mass 39000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 19 m lower vert

cupoosta [38]

Answer:

The compression in the spring is 5.88 meters.

Explanation:

Given that,

Mass of the car, m = 39000 kg

Height of the car, h = 19 m

Spring constant of the spring, $k=4.2\times 10^5\ N/m$

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$mgh=\dfrac{1}{2}kx^2$

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So, the compression in the spring is 5.88 meters.

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3 years ago

If a 50 W light bulb and a 90 W light bulb operate from 120 V, which bulb has a greater current in it?

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The 50 W bulb would have a greater current than the 90 W bulb

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2 years ago