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Klio2033 [76]
4 years ago
8

Which property of matter identifies whether a substance or material is able or likely to catch fire and burn?

Physics
2 answers:
Ostrovityanka [42]4 years ago
6 0
Reactivity because, the rest do not involve a chemical change that can light on fire, etc.
motikmotik4 years ago
5 0
A reactivity because it’s reacting
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Are the two atoms shown below in the image from the same element?
kvasek [131]

The answer is yes

They are isotopes.

7 0
3 years ago
A 0.050 kg bullet strikes a 5.0 kg wooden block with a velocity of 909 m/s and embeds itself in the block which fies off its sta
serg [7]

Answer:

The final velocity of the bullet is 9 m/s.

Explanation:

We have,

Mass of a bullet is, m = 0.05 kg

Mass of wooden block is, M = 5 kg

Initial speed of bullet, v = 909 m/s

The bullet embeds itself in the block which flies off its stand. Let V is the final velocity of the bullet. The this case, momentum of the system remains conserved. So,

mv=(m+M)V\\\\V=\dfrac{mv}{m+M}\\\\V=\dfrac{0.05\times 909}{0.050+5}\\\\V=9\ m/s

So, the final velocity of the bullet is 9 m/s.

5 0
3 years ago
How many degrees are there between the direction of motion and the force of
Aleks04 [339]

Answer:

180°

Explanation:

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5 0
3 years ago
Read 2 more answers
What is the chemical formula for a chlorine molecule wichs contains two chlorine CI atoms
murzikaleks [220]
Cl2 is the answer. Hope this helps you.
4 0
3 years ago
What is the frequency of X-rays of 10 nm wavelength? 6 x 1016 Hz 3 x 1016 Hz 3.00 Hz 6 x 108 Hz
Evgesh-ka [11]

The frequency of any wave is  (wave speed) / (wavelength) .

The speed of light is  3 x 10⁸ m/s.
If the wavelength is 10 nm (10⁻⁸ m) , then the frequency is

                         (3 x 10⁸) / (10⁻⁸)  =  <em>3 x 10¹⁶ Hz</em>

That's 30 million gigahertz !

8 0
3 years ago
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