Answer:
T2 ∝ a3
Explanation: took the quick check 
 
        
             
        
        
        
The amount of heat needed to raise the temperature of a substance by 

 is given by

where
m is the mass of the substance
Cs is its specific heat capacity

 is the increase in temperature
For oxygen, the specific heat capacity is approximately 

The variation of temperature for the sample in our problem is 

while the mass is m=150 g, so the amount of heat needed is
 
 
        
        
        
Answer:
If by 1.5 MJ you mean 1.5E6 Joules then
W = P t    = power X time
W / t = P   power
P = 1.5E6 J / 600 sec = 2500 J / s
P = I V 
a) I = 2500 J/s / (240 J/c) = 10.4 C / sec  = 10.4 amps
b) Q = I t = 10.4 C / sec * 300 sec = 3120 Coulombs
c)  E = P * t = 2500 J / sec * 100 hr * 3600 sec / hr = 9.0E8 Joules
 
        
             
        
        
        
Fnet = (mass) (acceleration)
        = 11 kg x 3.7m/s^2
        = 41 N