2 years ago

What are the three main categories of elements?

Physics

2 answers:

o-na [289]2 years ago

8 0

Answer:

Classification of the Elements. These three groups are: metals, nonmetals, and inert gases.

Explanation:

iogann1982 [59]2 years ago

7 0

Answer:If you're referring to Organic Molecules, then they are CARBON, HYDROGEN and OXYGEN.

Explanation:

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Two objects with a mass of 10,000-kg each and a distance of 1 meter between them.

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Answer:

d) What is the force if we doubled both the masses AND we doubled the distance

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An object with mass 3.5 kg is attached to a spring with spring stiffness constant k = 270 N/m and is executing simple harmonic m

Elanso [62]

Answer:

Part a)

A = 0.066 m

Part b)

maximum speed = 0.58 m/s

Explanation:

As we know that angular frequency of spring block system is given as

$\omega = \sqrt{\frac{k}{m}}$

here we know

m = 3.5 kg

k = 270 N/m

now we have

$\omega = \sqrt{\frac{270}{3.5}}$

$\omega = 8.78 rad/s$

Part a)

Speed of SHM at distance x = 0.020 m from its equilibrium position is given as

$v = \omega \sqrt{A^2 - x^2}$

$0.55 = 8.78 \sqrt{A^2 - 0.020^2}$

$A = 0.066 m$

Part b)

Maximum speed of SHM at its mean position is given as

$v_{max} = A\omega$

$v_{max} = 0.066(8.78) = 0.58 m/s$

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2 years ago

The particles of a gas are packed tightly together.

finlep [7]

Answer:

False

Explanation:

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<span>fast-moving particles colliding with slow-moving particles</span>

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Answer:

D: Increase the distance between the objects.

E: Decrease the mass of one of the objects.

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