Answer:
acceleration, a = 9.8 m/s²
Explanation:
'A ball is dropped from the top of a building' indicates that the initial velocity of the ball is zero.
u = 0 m/s
After 2 seconds, velocity of the ball is 19.6 m/s.
t = 2s, v = 19.6 m/s
Using
v = u + at
19.6 = 0 + 2a
a = 9.8 m/s²
Answer:
19.2m/s
Explanation:
Assuming that 2.4m/s^2 was the acceleration and not a typo, we can use the equation v=at, where v=velocity, a=acceleration, and t=time,
plug in known varibles,
v=2.4*8
v=19.2m/s
The Sun --> through 93 million miles of space, in about 8 minutes --> through the Earth's atmosphere --> through the glass window into your house --> through a little more air, inside the room --> through the glass fishtank --> through some water --> light hits the fish; all colors of light except yellow get absorbed by the fish; the yellow waves bounce off --> through the water again --> through the glass tank again, out into the room --> through some air again --> a little bit of the yellow light happens to go into your eye, and you see it. Most of it doesn't, though.
Digital signals are advantageous over analog signals because they are easily reproducible and convey information with little interference.
<h3>What are analog and digital signal?</h3>
Analogs signals are signal which are continuous whereas digital signals are signal which are not continuous but are separated by time.
Use of digital signals are most common because they have certain advantages over analog signals.
Some advantages of digital signals over analog signals include:
- Digital signals can convey information with less noise and interference.
- Digital circuits can be easily reproduced
Therefore, Digital signals are advantageous over analog signals because they are easily reproducible and convey information with little interference.
Learn more about digital and analog signals at: brainly.com/question/14729899
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