Answer:
the current is 15.68 × 
A
Explanation:
mass = 1000 kg
magnetic fied = 2T
rail separation = 2m
escape velocity is 11.2km/s = 11.2 × 
m/s
distance = 10 km = 
m
to find out
determine the current
solution
we know force F = I×L×B
here I is current and L is rail separation and B is magnetic field
so F = I ×2×2 = 4 I
so
acceleration is a = 
a = 
m/s²
so equation of motion
v²-u² = 2 a S
here u is initial velocity and S is distance and a is acceleration and v is final velocity
11.2 × - 0 = 2× ×
solve we get I
I = 15.68 × A
so the current is 15.68 × A
The formula that is usually used for the calculation of power is the product of force applied and the speed at which the action is done. That is,
P = Fv
We let d be the distance covered and the equation for power would be,
P = (500 N)(d/240 s)
P = 2.08d
Q = mcθ
Where Q = Amount of heat in J
m = Mass of substance in kg
θ = Temperature rise in °C or K
C = Specific heat capacity in J/kgK
From given data:
Q = 33 kJ = 33 000 J, m= 2.0 kg, θ = 80 K, c = ?
33000 = 2 * c * 80
33000 = 160c
160c = 33000
c = 33000/160 = 206.25
Therefore specific heat capacity is 206.25 J/kgK
