1. The time taken for the water to fall that much is 0.2 s
2. The initial speed of the water is 4 m/s
<h3>1. How to determine the time </h3>
- Height (h) = 20 cm = 20 / 100 = 0.2 m
- Acceleration due to gravity (g) = 9.8 m/s²
- Time (t) =?
h = ½gt²
0.2 = ½ × 9.8 × t²
0.2 = 4.9 × t²
Divide both side by 4.9
t² = 0.2 / 4.9
Take the square root of both side
t = √(0.2 / 4.9)
t = 0.2 s
<h3>2. How to determine the initial speed</h3>
- Horizontal distance (s) = 80 cm = 80 / 100 = 0.8 m
- Time (t) = 0.2 s
- Initial speed (u) =?
s = ut
Divide both sides by t
u = s / t
u = 0.8 / 0.2
u = 4 m/s
Learn more about motion under gravity:
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Answer:
??
Step-by-step explanation:
Please provide #'s or a picture I can't help you without them !
Answer: 79 seconds.
Step-by-step explanation:1) we have to calculate the lenght of the baseball field.
perimeter of the baseball field=2(radius)+lenght of a semicircle.
2(radius)=2(175 ft)=350 ft
lenght of a semicircle=40% of a circumference=(40/100)(2πr)
Perimeter of the baseball field=2(175 ft) + (40/100)(2π175 ft)=
=350 ft + 140π ft=350 ft + 439.82 ft=789.82 ft,
2)Now, we calculate the amounts of time that it takes you to ruan arount the baseball field.
10 ft------------------------1 second
789,82 ft----------------- x
x=(789.82 ft * 1 second) / 10 ft=78.98 s≈79 s
There is a 3/10, 0.3, and 30% chance of selecting cheesecake then a 4/10, 0.4, 40% chance on selecting cookies.
There is a 3/10, 0.3, 30% chance of a person selecting and eating a apple pie and the chance of them selecting another apple pie is 2/9, 0.22222222, 22.2222%.
There is a 4/10, 0.4, 40% chance somebody selects a cookie and gives it to their friend and their is a 3/9, 0.33333333333333, 33.3333% of someone selecting cheesecake randomly.
There is a 3/10, 0.3, 30% percent chance of someone randomly selecting a apple pie then putting it back and there is a 4/10, 0.4, 40% chance of someone selecting a cookie.
There is a 3/10, 0.3, 30% of someone randomly selecting a cheesecake and eating it and there is a 3/9, 0.33333333333333, 33.3333%. I hope this helps but i am a little unsure if for example it says what r the chances of someone RANDOMLY selecting lets say a cookie and lets say the fraction is 3/10, 0.3, 30% and lets say they put it back then it says what are the chances of someone selecting cheesecake but it doesn’t say randomly lets say there are three cheesecakes would the fraction, decimal, and percentage be a hundred percent chance on all of the things because it wasn’t picked randomly?
And another thing is lets say for number 1 someone takes a cheesecake and eats it. Would that affect the number of cheesecakes for the other questions?
ANYWAY I ANSWERED YOUR QUESTIONS THE BEST I COULD IM SORRY IF SOME WERE WRONG ALTHOUGH I DON’T THINK THEY ARE I DON’T KNOW WHAT PEOPLE MEAN BY THEY WOULD GIVE BRAINLIEST BUT IF YOU KNOW HOW OR YOU CAN WILL YOU GIVE IT TO ME.
