(amount of heat)Q = ? , (Mass) m= 4 g , ΔT = T f - T i = 180 c° - 20 °c = 160 °c , 
 Ce = 0.093 cal/g. °c 
Q = m C ΔT 
Q = 4 g × 0.093 cal/g.c° × ( 180 °c- 20 °c )
Q= 4×0.093 × 160
Q = 59.52 cal 
I hope I helped you^_^
 
        
             
        
        
        
Betelgeuse is one of the largest known stars and is probably at least the size of the orbits of Mars or Jupiter around the sun. That's a diameter about 700 times the size of the Sun or 600 million miles. For a star it has a rather low surface temperature (6000 F compared to the Sun's 10,000 F).
        
             
        
        
        
Answer;
-Tsunami
Explanation;
-Tsunami  is a series of large ocean waves (or "wave train") of extremely long wavelength and period, usually generated when a gigantic body of water, such as an ocean, is suddenly displaced on a massive scale by an underwater disturbance such as an earthquake occurring on or near the sea floor or a volcanic eruption.
-After a sudden displacement of a large water volume by seismic activity (earthquake), the ocean floor is raised or dropped and large tsunami waves can be formed by gravitational forces.
 
        
                    
             
        
        
        
Explanation:
The given data is as follows.
            radius (r) = 3.25 cm,    
Now, we will calculate the tangential acceleration as follows.
           
Putting the given values into the above formula as follows.
          
                       = 
                       = 37.7 
Thus, we can conclude that the tangential acceleration of a point on the rim of the flywheel during this spin-up process is 37.7  .
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Yes, that's right.  It's the 'Planck' length, not the 'Planet' length.
You could easily find these with a web search.  But in gratitude
for the bountiful 5 points, I've saved you the trouble.  
AND guess what !   By doing that, I learned something, and
you didn't.
Speed of light (c):                 299,792,458 meters per second
Gravitational constant (G):   6.67 x 10⁻¹¹  newton-meter²/kilogram²
Planck's Konstant (h):           6.63 x 10⁻³⁴ joule-second
Planck Length:                      1.6 x 10⁻³⁵ meter
                                            (about 10⁻²⁰ the size of a proton)
Planck Time:                          10⁻⁴³ second
                                             (about the time it takes to travel
                                              a Planck Length at the speed of light)