Your answer is c steam because steam is a gas...
        
                    
             
        
        
        
Answer: F = 130 N
Explanation: Solution:
Convert first 27 cm to m.
27 cm  x 0.01 m / 1 cm = 0.27 m
Calculate the torque using T = Fd
Derive to find force F
F = T /d
   = 35 N.m / 0.27 m
   = 130 N
 
        
                    
             
        
        
        
Rocks and sediments I believe
        
             
        
        
        
Answer:
Explanation:
a ) Direction of the magnetic field will be in positive x direction. 
The direction of the vector E X B gives the direction of motion of wave. 
b ) Magnitude of magnetic field is given by the relation 
E₀ / B₀ = c , c is velocity of light 
B₀ = E₀ / c 
= 20 / (3 x 10⁸)
= 6.67 x 10⁻⁸ T 
c ) Average power flowing per unit area by this wave is called Poynting vector 
c ε₀E₀² , ε₀ = 8.85X10⁻¹²
= 3 X 10⁸ X 8.85 X 10⁻¹² X 20²
= 1.062 W m⁻² 
 
 
        
             
        
        
        
A. Impulse is simply the product of Force and time.
Therefore,
I = F * t                                 --->
1
where I is impulse, F is force, t is time
 
However another formula for solving impulse is:
I = m vf – m vi                    --->
2
where m is mass, vf is final velocity and vi is initial
velocity
 
Therefore using equation 2 to solve for impulse I:
I = 2000kg (0) – 2000kg (77 m/s)
I = -154,000 kg m/s
 
B. By conservation of momentum, we also know that Impulse
is conserved. That means that increasing the time by a factor of 3 would still
result in an impuse of -154,000 kg m/s. So,
I = F’ * (3 t) = -154,000 kg m/s
Since t is multiplied by 3, therefore this only means
that Force is decreased by a factor of 3 to keep the impulse constant,
therefore:
(F/3) (3t) = -154,000 kg m/s
 
 
Summary of Answers:
A. I = -154,000 kg m/s
B. Force is decreased by factor of 3