Answer:
T = 2.82 seconds.
The frequency 
Amplitude A = 25.5 cm
The maximum speed of the glider is 
Explanation:
Given that:
the time taken for 11 oscillations is 31 seconds ;
SO, the time taken for one oscillation is :

T = 2.82 seconds.
The formula for calculating frequency can be expressed as :



The amplitude is determined by using the formula:

The limits that the spring makes the oscillations are from 10 cm to 61 cm.
The distance of the glider is, d = (61 - 10 )cm = 51 cm
Replacing 51 for d in the above equation

A = 25.5 cm
The maximum speed of the glider is:

where ;






Answer:
B). 3.4 s
Explanation:
As we can see the graph is given between velocity and time
so here we can see that the velocity is changing here with time and initially for some time it moves with constant speed
Then it's speed decreases to next few second and then speed increases to its maximum value
The time after which velocity comes to its maximum value will reach after t = 3 s
so out of the all given options most correct option will be

Rate of change of velocity is acceleration
Waves transfer energy but not matter
The speed of the ball is 27.4 m/s
Explanation:
The speed of an object is given by:

where
d is the distance covered
t is the time taken
In this problem, we have:
d = 300 yards is the distance covered by the golf ball
t = 10 s is the time taken
Keeping in mind that
1 yard = 0.914 m
We can convert the distance from yards to meters:

And substituting into the equation, we find the speed of the ball:

Learn more about speed:
brainly.com/question/8893949
#LearnwithBrainly