Hello,
<u>Solution for A:</u>
Force = 3.00N
Mass = 0.50 Kgs
Time = 1.50 Seconds
According to newton's second law of motion;
Force = Mass times Acceleration(a)
3.00 = 0.50 * a
a = 3.00/0.50 = 6.00 m/s^2
We know that acceleration = Velocity / time
So Velocity = time * acceleration = 1.50 * 6 = 9.00 m/s^2
<u>Solution for B:</u>
The net force = 4.00N - 3.00N = 1.00N to the left
Force = 1.00N
Mass = 0.50Kg
Time = 3.00 Seconds
Again; F = MA (Where F is force, M is mass and A is acceleration)
1.00N = 0.5 * A
A = 1/0.5 = 2 m/s^2
Velocity = Acceleration * Time = 2 * 3 = 6 m/s
 
        
             
        
        
        
Answer:
Explanation:
Person A's velocity relative to the train is 0.  Therefore, the pitch of the horn will not change.
 
        
                    
             
        
        
        
Answer:
Compounds can be broken apart in chemical reactions called decomposition reactions. For example, water can be broken down into the diatomic elements hydrogen gas and oxygen gas in a chemical reaction called electrolysis. ... Some compounds undergo thermal decomposition when they are heated.M
 
        
             
        
        
        
Answer:
1.697s
Explanation:
We use the second equation of free fall under gravity as follows;

Since  the ball fell freely, u = 0m/s, therefore equation (1) reduces to

Given that h is the total height the ball falls through in time t seconds.
However, according to the stated problem the ball falls halfway in 1.2s, this simply implies that the ball falls through a distance of  in 1.2s. Hence we can write the following, given that
 in 1.2s. Hence we can write the following, given that  ;
;

We can now proceed to find the time t for which it falls through h = 14.112m as follows;

 
        
             
        
        
        
Law of Conservation of Charge