Answer: T= 715 N
Explanation:
The only external force (neglecting gravity) acting on the swinging mass, is the centripetal force, which. in this case, is represented by the tension in the string, so we can say:
T = mv² / r
At the moment that the mass be released, it wil continue moving in a straight line at the same tangential speed that it had just an instant before, which is the same speed included in the centripetal force expression.
So the kinetic energy will be the following:
K = 1/2 m v² = 15. 0 J
Solving for v², and replacing in the expression for T:
T = 1.9 Kg (3.97)² m²/s² / 0.042 m = 715 N
Could you maybe show us the diagram
Answer:
Minimum DC current 
Ampere
Voltage 
V
Explanation:
Here in this questions three resistors are used in series
Resistance of cap circuit
Here 
is the resistance per cap
Resistance of bus wire
Where 
is the resistance per 
feet of bus wire of gauge 16
Resistance of firing line
where 
is the resistance per feet of bus wire of gauge 14
Total resistance is equal to
Current in firing line is equal to
Voltage is equal to product of resistance and current
