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Illusion [34]
4 years ago
14

Using the periodic table of the elements, how many valence electrons would helium have?

Physics
1 answer:
Natali5045456 [20]4 years ago
6 0

Helium only has 2 electrons. So the answer is C. 2

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if 2 houses are made of hardwood bit ones walls are twice as thick as the other, which house would be better at reducing the rat
Anestetic [448]

the one with thinner walls


3 0
3 years ago
The highest amount a landlord can charge for rent is an example of
NeTakaya
The correct answer that would best complete the given statement above would be RENT CONTROL. The rent control is the highest amount that a landlord or a property owner can charge for a rent. Rent control is established by the government that gives the maximum amount as to how much a landlord can charge the tenant. Hope this answer helps.
6 0
3 years ago
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Light waves are traveling through glass. If the wavelength of some part of the light wave is 4 x 10^(-7) m and the frequency of
Ivenika [448]
Wave speed = fλ
=(5 x 10^14)(4 x 10^-7)
=2 x 10^8

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3 0
3 years ago
How hot is the surface of the sun (in degrees Celsius)?
Sindrei [870]

Answer:

About 6 thousand

Option A

Explanation:

4 0
3 years ago
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Is it safe to drive your 1600-kgkg car at speed 27 m/sm/s around a level highway curve of radius 150 mm if the effective coeffic
nalin [4]

Answer:

It isn't safe for the car to drive on this road.

The radial acceleration of the car exceeds the maximum radial acceleration the road can support.

Explanation:

For the road to be safe for the car, frictional force of the road on the car must always exceed or match the force keeping the car in circular motion

Frictional force of the road on the car = μmg = 0.4 × 1600 × 9.8 = 6272 N

Force keeping the car in circular motion = mv²/r = 1600×27²/150 = 7776 N

The force keeping the car in circular motion > Frictional force that the road can support the car with.

Maximum radial acceleration the road can support = Frictional force/mass of the car = 6272/1600 = 3.92 m/s²

Radial acceleration of the car currently = 7776/1600 = 4.86 m/s²

which evidently exceeds the maximum allowable radial acceleration

This means the road isn't safe for the car.

5 0
3 years ago
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