Twenty is the atomic number of potassium.
        
             
        
        
        
1. HP is the output horsepower rating of an engine, while Brake horse power is the input brake horsepower of an engine. ...  Brake horse power is the measurement of an engine's power without any power losses, while HP is  less the power losses Brake horse power
 
        
             
        
        
        
The correct answer is #4. They have the same number of protons but a different number of neutrons.
        
             
        
        
        
Answer:
V initial = 29.4 m.s²
Explanation:
( Using the laws of motion)
V final = V initial + Acceleration × time
 0 = V initial + ( -9.8)(3)
29.4 = V initial 
* I took upward as positive that's why I substituted -9.8 *
* for V final we know that at maximum height the ball is not moving thats why is = 0 *
 
        
             
        
        
        
Explanation:
It is given that,
The separation between two parallel wires, r = 5.6 cm = 0.056 m
Current in both the wires is 2.65 A
(a) We need to find the magnitude of the force per unit length between the wires. It can be given by :

(b) As the current is in same direction, the wires will attract each other.