The correct answer for this question would be option A. When Barry is
conducting an experiment and rolls a tennis ball down a ramp, the
statement that best describes  the motion of the tennis ball is that, i<span>t does not exhibit projectile motion and follows a straight path down the ramp. Hope this helps.</span>
        
                    
             
        
        
        
Answer:
Explanation:
Because we assume the pendulum is a "mathematical pendulum" (neglecting the moment of inertia of the bob), we can find:

By using the 
The mean position is the position when <em>y</em> = 0, so:
 rad/s
 rad/s
and  in centimeters (cm).
 in centimeters (cm). 
 
        
             
        
        
        
Answer:
The diameter of a hydrogen atom based on scientific notation is 1.06 x 10^-10 m
 
        
             
        
        
        
<h3><u>Given</u><u>:</u><u>-</u></h3>
Acceleration,a = 3 m/s²
Initial velocity,u = 0 m/s 
Final velocity,v = 12 m/s 
<h3><u>To</u><u> </u><u>be</u><u> </u><u>calculated:-</u><u> </u></h3>
Calculate the time take by a car.
<h3><u>Solution:-</u><u> </u></h3>
According to the first equation of motion:
 v = u + at
★ Substituting the values in the above formula,we get:
⇒ 12 = 0 + 3 × t
⇒ 12 = 3t
⇒ 3t = 12
⇒ t = 12/3
⇒ t = 4 sec