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Sedbober [7]
3 years ago
10

Hanna is recovering hundreds of treasure chests from an ancient shipwreck. She is able to recover

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Answer:

its joe

Step-by-step explanation:

joe joe joe

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Physics
Andrej [43]

Answer:

a) Josef jogging from A to B;

i. speed = 2 m/s

ii. velocity = 2m/s

a) a) Josef jogging from A to C;

speed = 1.9 m/s

ii. velocity = 2.2 m/s

Step-by-step explanation:

One major difference between speed and velocity is that speed is a scalar quantity, while velocity is a vector quantity.

a) Josef jogging from A to B;

distance = 300 m

time = 2.5 seconds = 150 seconds

i. his average speed = \frac{distance}{time}

                               = \frac{300}{150}

                               = 2 m/s

ii. his average velocity = \frac{displacement}{time}

                               = \frac{300}{150}

                               = 2 m/s

b) Josef jogging from A to C,

distance = 300 + 100 = 400 m

time = 2.5 + 1 = 3.5 minutes

        = 210 seconds

i. his average speed = \frac{distance}{time}

                                  = \frac{400}{210}

                                  = 1.9 m/s

ii. his average velocity = \frac{\sqrt{V_{1} ^{2}   + V_{2} ^{2} } }{2}

V_{1} ^{2} = 4 m/s

V_{2} ^{2} = 1.9 m/s

his average velocity = \frac{\sqrt{4^{2} + 1.9^{2}  } }{2}

                                  = 2.2 m/s

5 0
2 years ago
A biologist wants to know the width w of a river in order to properly set instruments for studying the pollutants in the water.
belka [17]

Answer:   The river is 148.3 feet wide.

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The triangle formed is a right triangle.

Using SOH CAH TOA

tan 56 = \frac{x}{100}

Multiplying 100 in both sides

x = 100 \times tan56

x = 100 \times 1.4826

x = 148.26

Rounding to the one decimal place

x = 148.3

Hence river is 148.3 feet wide.   .............. Answer

Hope it will help :)

6 0
3 years ago
Help me please......................
OverLord2011 [107]
60 is 15
30 is 6
75 is 12
35 is 7
That’s the answer
3 0
2 years ago
a hockey goalie scores 82% of shots at the goal, about how many shots can the goalie predict he will block in 735 tries round to
icang [17]

Step-by-step explanation:

so all you have to do it devide 735÷82

4 0
2 years ago
A student conducted a poll of 100 internet users and found the average time spent online per day was 2 hours. The student descri
n200080 [17]
I believe it's B or A Sample. 
3 0
3 years ago
Read 2 more answers
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