Answer:pressure = density * acceleration due to gravity * height 
H=72.6cm= 0.726m
P=0.726*13.6*10^3*9.8
P=96761.28Pa
Explanation:
 
        
             
        
        
        
Answer:
1.04μT
Explanation:
Due to both wires have opposite currents, the magnitude of the total magnetic field is given by

I: electric current = 10A
mu_o: magnetic permeability of vacuum = 4pi*10^{-7} N/A^2
r1: distance from wire 1 to the point in which B is measured.
r2: distance from wire 2.
The distance between wires is 40cm = 0.4m. Hence, r1=0.2m r2=0.6m
By replacing in the formula you obtain:

hence, the magnitude of the magnetic field is 1.04μT
 
        
             
        
        
        
Answer:
 x ’= 368.61 m,  y ’= 258.11 m
Explanation:
To solve this problem we must find the projections of the point on the new vectors of the rotated system  θ = 35º
             x’= R cos 35
             y’= R sin 35
             
The modulus vector can be found using the Pythagorean theorem
             R² = x² + y²
             R = 450 m
we calculate
             x ’= 450 cos 35
             x ’= 368.61 m
             y ’= 450 sin 35
             y ’= 258.11 m
 
        
             
        
        
        
Answer:
The most common of these is carbon 12, 13, 14. All of these isotopes have the same atomic number but different mass numbers. Carbon has the atomic number of 6 which means that all isotopes have the same proton number. However, the number of neutrons is different, thus giving different mass numbers.