All categories

2 years ago

CAN SOMEONE ANSWER THIS QUESTION PLZ QUICK!!!!

Mathematics

2 answers:

aniked [119]2 years ago

7 0

Answer:

Step-by-step explanation:

Final kinetic energy is equal to gravitational potential energy

KE=PE

(mv^2)/2=mgh

v^2=2gh

Given h=7m and g=9.8m/s^2

v^2=2(9.8)7

v^2=137.2 m^2\s^2

v=11.7 m/s

They rounded to 11.8 m/s for whatever reason :)

makvit [3.9K]2 years ago

3 0

Answer:

140 m/s

Step-by-step explanation:

You might be interested in

Guo Qi watches 151515 videos on Khan Academy every day. Each video is 888 minutes long on average. For how many days does Guo Qi

lozanna [386]

Answer:

Guo Qi requires 75 days to watch videos on Khan Academy.

Step-by-step explanation:

We are given the following in the question:

Number of videos watched by Guo Qi each day = 15

Average length of each video = 8 minutes

Total minutes of video = 9000 minutes

Total number of videos to be watched =

$=\dfrac{\text{Total minutes}}{\text{Average length of video}}\\\\=\dfrac{9000}{8}=1125$

Guo Qi needs to watch 1125 videos.

Number of days required =

$=\dfrac{\text{Total number of videos}}{\text{Videos watched in one day}}\\\\=\dfrac{1125}{15}=75$

Guo Qi requires 75 days to watch videos on Khan Academy.

6 0

2 years ago

What is the range of f(x)=15(1/3)^x

wel

Answer:

(0,inf) {y║y>0}

Step-by-step explanation:

8 0

3 years ago

What is f(2) = 2x -6

Dennis_Churaev [7]

Answer:

f(2) = -2

Step-by-step explanation:

f(2) = 2x - 6

f(2) = 2(2) - 6

f(2) = 4 - 6

f(2) = -2

4 0

2 years ago

I = prt

lukranit [14]

Step-by-step explanation:

S.I = PRT

=$7430×(5÷100)× 3

=$1114•50

5 0

2 years ago

Read 2 more answers

A city is designing a new trail system that will be

lyudmila [28]

Step-by-step explanation:

the answer is 6.125 and its will be divided by 125

3 0

2 years ago

CAN SOMEONE ANSWER THIS QUESTION PLZ QUICK!!!! ​

CAN SOMEONE ANSWER THIS QUESTION PLZ QUICK!!!!