Im too young for physics, sorry!
Answer:
Explanation:
Given that
The window height is 2m
And the window is 7.5m from the ground
Then the total height of the window from the ground is 7.5+2=9.5m
It takes the ball 0.32sec travelled pass the window.
When the ball get to the window, it has an initial velocity (u') and when it gets to the top of the window it has a final velocity ( v')
Now using the equation of free fall during this window travels
S=ut-½gt² against motion.
S=2, g=9.81, t=0.32sec
Then,
S=u't-½gt²
2=u'×0.32-½×9.81×0.32²
2=0.32u'-0.5023
2+0.5032=0.32u'
Then, 0.32u'=2.5032
u'=2.5032/0.32
u'=7.82m/s
This is the initial velocity as the ball got the the window
Now, let analyse from the window bottom to the ground which is a distance of 7.5m
Using the equation of free fall again
v²=u²-2gH
In this case the final velocity (v) is the velocity when the ball reach the bottom of the window i.e u'=7.82m/s,
While u is the original initial velocity from the throw of the ball
Then,
u'²=u²-2gH
7.82²=u²-2×9.81×7.5
61.146=u²-147.15
61.146+147.15=u²
Then, u²=208.296
So, u=√208.296
u=14.43m/s
The initial velocity of the ball form the throw is 14.43m/s
The semiconductor device that produces electric current through the effect is termed as transistor.
To find the answer, we have to know more transistor.
<h3>What is transistor?</h3>
- Transistors come in two different types: field-effect transistors and bipolar junction transistors.
- The formation of two p-n junctions in various configurations, such as n-p-n or p-n-p, results in bipolar junction transistors.
- The emitter, collector, and base, or middle region, are the three areas that form in a transistor.
- The conductivity of the field-effect transistor, which is based on the conductivity principle, can be changed by an electric field.
Thus, we can conclude that, the semiconductor device that produces electric current through the effect is termed as transistor.
Learn more about transistor here:
brainly.com/question/1345827
#SPJ4
The following answers apply;
- Changes in magnetic properties of rock
- Decrease in well water levels
- Increases in radon gas in groundwater
- Foreshocks
These other choices may be good indicators of an imminent volcanic eruption;
Movement of magma
Increase in sulfur dioxide and carbon dioxide ground emissions
