Answer:
the less shielding of electrons
Gravity increased the downward speed (or decreases the upward speed) by 9.8 m/s every second.
21.2/9.8 = 2.2 seconds
Answer:
what r the options that are there
Explanation:
The most dense thing inside the column is the little star. It's pink, and it's resting on the bottom of the cylinder.
The red part under the star is the solid base that the cylinder is standing in. It's probably wood or plastic, it's not free to move, and it's not involved in the experiment.
The speed of the ball is 1.57 m/s
Explanation:
We start by calculating the angular speed of the ball, which is given by

where
T is the period of revolution
For the ball in this problem,
T = 2 s
(since the ball makes 1 revolution every 2 seconds)
So, the angular speed is

Now we can calculate the speed of the ball by using

where
r = 0.5 m is the radius of the circular path
Substituting,

Learn more about angular motion:
brainly.com/question/9575487
brainly.com/question/9329700
brainly.com/question/2506028
#LearnwithBrainly