Answer:
The skater has mechanical/gravitational potential energy at the two meter mark. The skater gets to two meters high on the other end of the ramp. In terms of the conservation of energy, the skater will never go higher than two meter on the other end of the the ramp because energy can be neither created nor destroyed.
Explanation:
I hoping it is right!!!∪∧∪     ∪ω∪
 
        
                    
             
        
        
        
Simply draw the vector with the given coordinates.
 
        
             
        
        
        
The equation of state for an ideal gas is

where p is the gas pressure, V the volume, n the number of moles, R the gas constant and T the temperature.
The equation of state for the initial condition of the gas is

 (1)
While the same equation for the final condition is

 (2)
We know that in the final condition, half of the mass of the gas is escaped. This means that the final volume of the gas is half of the initial volume, and also that the final number of moles is half the initial number of moles, so we can write:


If we substitute these relationship inside (1), and we divide (1) by (2), we get

And since the initial temperature of the gas is 

, we can find the final temperature of the gas:
 
 
        
        
        
Nuclear Fission s a power source with a very low environmental impact. 
        
             
        
        
        
Answer: 
Explanation:
The de Broglie wavelength  is given by the following formula:
 is given by the following formula:
 (1)
 (1)
Where:
 is the Planck constant
 is the Planck constant
 is the momentum of the atom, which is given by:
 is the momentum of the atom, which is given by:
 (2)
 (2)
Where:
 is the mass of the electron
 is the mass of the electron
 is the velocity of the electron
 is the velocity of the electron 
This means equation (2) can be written as:
 (3)
 (3)
Substituting (3) in (1):
 (4)
 (4)
Now, we only have to find  :
:
 >>> This is the de Broglie wavelength of the electron
>>> This is the de Broglie wavelength of the electron