slight reflect but most goes through because glass is transparent
As per the formula of time period of simple pendulum we can say

so from above formula we can see that time period of pendulum depends on the value of L
so here as we change the length of pendulum the time period will also change
so
Time Period = Dependent Variable
Length = Independent Variable
The quantity that has a magnitude of zero when the ball is at the highest point in its trajectory is
the vertical velocity.
In fact, the motion of the ball consists of two separate motions:
- the horizontal motion, on the x-axis, which is a uniform motion with constant velocity

, where

- the vertical motion, on the y-axis, which is a uniformly accelerated motion with constant acceleration

directed downwards, and with initial velocity

. Due to the presence of the acceleration g on the vertical direction (pointing in the opposite direction of the initial vertical velocity), the vertical velocity of the ball decreases as it goes higher, up to a point where it becomes zero and it reverses its direction: when the vertical velocity becomes zero, the ball has reached its maximum height.
I am 11 year old I just wanted to login in so I don't know the answer
It depends how far you travel.
If for instance you travel 1000 miles, then your speed is distance/time = 1000/5 = 200 mph