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NeX [460]
2 years ago
13

Pweese help luvs qwq pweese look at the image?

Physics
1 answer:
hjlf2 years ago
6 0

Answer:

12 m/s

Explanation:

divide distance over time

72/6 = 12

You might be interested in
If The density of this stainless steel is7.85 g/cm3,specific heatis 0.5 J/g.K, melting pointis 1673K, heat of fusion s0.260J/kg.
kodGreya [7K]

Answer:

\Delta H=687.4 J

Explanation:

Hello!

In this case, for this melting process, we can identify two sub-processes in order to take the stainless steel from solid to liquid:

1. Heat up from 298.15 K to 1673 K.

2. Undergo the phase transition.

Both process have an associated enthalpy as shown below:

\Delta H_1=1g*0.5\frac{J}{g*K} (1673K-298.15K)=687.4J

\Delta H_2=0.001kg*\frac{0.260J}{kg} =0.00026J

Therefore, the required heat is:

\Delta H=\Delta H_1+\Delta H_2\\\\\Delta H=687.4J+0.00026J\\\\\Delta H=687.4J

Notice the problem is not providing neither the mass or volume, that is why we assumed the mass is 1 g; however, it can be changed to the mass you are given.

Best regards!

4 0
2 years ago
Foce that arises due to attraction or repulsion of electronic charges is called​
nika2105 [10]
Electrostatic force
8 0
2 years ago
True or false 6.02x10^23 atoms of oxygen have a mass of 16g ?
il63 [147K]

Answer:

True

Explanation:

The atomic mass of oxygen is 16amu, which means the <em>molar mass</em>, the mass of one mole of oxygen atoms (1 mole = 6.02x10²³), is 16g.

5 0
2 years ago
Of all the radio waves, these have the shortest wavelengths and the the highest frequency?
Julli [10]
If by chance you mean any wave, the wave with the shortest wavelength/highest frequency is gamma rays.
4 0
3 years ago
What is the main reason water from the ocean turns to water vapor , and then evaporates into the air
melamori03 [73]

Hello! :)

C) heat from the sun

Why?

Because the sun’s heat makes the water turn to steam—or what we call “water vapor.”

Hope this helped and I hope I answered in time!

Good luck!

~ Destiny ^_^

3 0
2 years ago
Read 2 more answers
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