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3 years ago

Which nonmetal makes up diamond, graphite, and the majority of coal?

Physics

2 answers:

Alenkasestr [34]3 years ago

5 0

D-carbon
When compressed forms diamonds

Lostsunrise [7]3 years ago

3 0

Answer

D- Carbon

Explanation:

Carbon, as an element, is the basis of what is referred to as diamond, graphite, and coal. Coal is a solid form with high content of hydrocarbon making coal amenable to burning). In a much purer form Carbon occurs in graphite and diamond. While in graphite carbon atoms bond to two neighboring atoms, in diamond they do so to four neighboring carbon atoms in a "tetrahedron-like" configuration (making diamond very hard).

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Which of the following statements is FALSE?

kobusy [5.1K]

The false statement would be :
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3 years ago

Physics 10

Dominik [7]

Answer:

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Explanation:

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1 year ago

If jack was traveling at 100 miles in 2 hours what was his velocity in miles per second

arsen [322]

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2 years ago

Read 2 more answers

Which statement is true about a planet’s orbital motion?

lana66690 [7]

Answer:

Orbital motion results when the object’s forward motion is balanced by a second object’s gravitational pull.

Explanation:

The gravitational force is responsible for the orbital motion of the planet, satellite, artificial satellite, and other heavenly bodies in outer space.

When an object is applied with a velocity that is equal to the velocity of the orbit at that location, the body continues to move forward. And, this motion is balanced by the gravitational pull of the second object.

The orbiting body experience a centripetal force that is equal to the gravitational force of the second object towards the body.

The velocity of the orbit is given by the relation,

$V = \sqrt{\frac{GM}{R + h} }$

Where

V - velocity of the orbit at a height h from the surface

R - Radius of the second object

G - Gravitational constant

h - height from the surface

The body will be in orbital motion when its kinetic motion is balanced by gravitational force.

$1/2 mV^{2} = GMm/R$

Hence, the orbital motion results when the object’s forward motion is balanced by a second object’s gravitational pull.

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3 years ago

A miner of mass 90kg travels down a slide calculate the potential energy of the miner when he moves15m vertically downwards

Lena [83]

Answer:

Gravitational Potential Energy = mgh

Explanation:

As the miner moves down, the GPE changes because the height changes.

Gravitational Potential Energy = mgh

8 0

2 years ago