Answer:
2 hrs 45 minutes
Explanation:
You have to minus one hr because of tome change
 
        
                    
             
        
        
        
Answer:

Explanation:
As we know that the magnetic field near the center of solenoid is given as

now we know that initially the length of the solenoid is L = 18 cm and N number of turns are wounded on it
So the magnetic field at the center of the solenoid is 2 mT
now we pulled the coils apart and the length of solenoid is increased as L = 21 cm
so we have

now plug in all values in it


 
        
             
        
        
        
Answer: 7.5 rev/s
Explanation:
We are given the angular velocity  a helicopter's main rotor blades:
 a helicopter's main rotor blades:

However, we are asked to express this  in the International Systrm (SI) units. In this sense, the SI unit for time is second (
 in the International Systrm (SI) units. In this sense, the SI unit for time is second ( ):
):


 
        
             
        
        
        
Answer:
Explanation:
velocity of projection, vo = 381 m/s 
angle of projection, θ = 73.5°
The formula for the range is 


R = 8067.4 m 
Range in shorten by 34.1 % 
So, the new range is 
R' = 8067.4 - 34.1 x 8067.4/100 
R' = 5316.4 m 
 
        
             
        
        
        
Answer:
This shows inertia because inertia is an object's resistance to change in motion. When the person (imma call them a she) who pulled the chair from under the guy did that, the chair was the one affected by the force of the girl, not the guy. The guy continued heading in the direction he was originally going, which was down.
At least, that's about how I would answer this question.