Answer:
4441 J
Explanation:
The amount of energy needed to change the ethyl alcohol from liquid to gas state is given by
where
m = 5.20 g is the mass of the alcohol
is the latent heat of vaporization of the substance
Substituting the numbers into the formula, we find:
This is known as Wien's Law:
The relationship is:
wavelength = 0.0029/temperature
It is an inversely proportional relationship.
Answer:
20.25 m
Explanation:
- <u>Centripetal acceleration </u>is given by; the square of the velocity, divided by the radius of the circular path.
That is;
<em><u>ac = v²/r</u></em>
<em> </em><em><u> Where; ac = acceleration, centripetal, m/s², v is the velocity, m/s and r is the radius, m</u></em>
Therefore;
r = v²/ac
= 27²/36
= 20.25 m
Hence the radius is 20.25 meters
Tungsten has the highest tensile strength of any natural metal, but it's brittle and tends to shatter on impact.
Titanium has a tensile strength of 63,000 PSI. ...
Chromium, on the Mohs scale for hardness, is the hardest metal around.
Answer:
The magnitude of magnetic field decreases in comparison to previous case.
Explanation:
Let current flowing in two conductors are 
and 
Magnetic field in wire,
Magnetic field due to current I1
Magnetic field due to current I2
When two parallel conductors are carrying currents in the same direction then the magnetic field will be added.
When the direction of one of the current is reversed then the magnitude of the magnetic field midway between them
Hence, the magnitude of magnetic field decreases in comparison to previous case.
