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Ad libitum [116K]
3 years ago
7

Differences in temperature change part2

Physics
1 answer:
olga55 [171]3 years ago
4 0

Explanation:

cold,hot,warm,room tempature i dont know what you needed help with but here you go:)

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A hungry 11.5 kg predator fish is coasting from west to east at 75.0 cm/s when it suddenly swallows a 1.25 kg fish swimming from
Oksi-84 [34.3K]

Answer with Explanation:

We are given that

Mass,m=11.5 kg

v_x=75 cm/s=0.75 m/s,v_y=0

1 m=100 cm

m'=1.25 kg

v'_x=0,v'_y=3.6 m/s

According to law of conservation momentum along east west direction

11.5\times 0.75+1.25(0)=(11.5+1.25)V_x

8.625=12.75V_x

V_x=\frac{8.625}{12.75}

V_x=0.68 m/s

According to law of conservation of momentum along north south direction

11.5(0)+1.25(3.6)=(11.5+1.25)V_y

4.5=12.75V_y

V_y=\frac{4.5}{12.75}=0.35 m/s

V=\sqrt{V^2_x+V^2_y}

V=\sqrt{(0.68)^2+(0.35)^2}

V=0.76 m/s

Direction,\theta=tan^{-1}(\frac{V_y}{V_x})

\theta=tan^{-1}(\frac{0.35}{0.68})

\theta=27.23^{\circ}

5 0
4 years ago
Why does earth get more energy from the sun than from all other stars in the universe?
klasskru [66]

Answer: The earth gets more energy from the sun because the sun is most close to the Earth.

Explanation:

7 0
3 years ago
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To completely describe the motion of an object, you need
notsponge [240]

Answer:

D

Explanation:

7 0
3 years ago
This engineer invented the iron wire to replace hemp rope.
IceJOKER [234]
The answer is A John Roebling.
7 0
4 years ago
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Students were asked to place a mint in their mouths and determine how long it took for the mint to dissolve. The condition of th
Llana [10]

Students were asked to place a mint in their mouths and determine how long it took for the mint to dissolve. The condition of the mint varied in each student group. One group of students were asked to leave a whole mint in their mouth, not moving it around, and let it dissolve. Another group swirled a mint, while the other groups used mints broken into smaller pieces. See the chart for all of the manipulated variable. After reviewing that data table, what kind of result would you predict for the swirled, whole mint?


A) The time is likely between 10-30 seconds.  

B) The time is likely between 40-80 seconds.  

C) The time is likely between 90-160 seconds.  

D)    The time is likely between 100-200 seconds.

 

            ANSWER: B) The time is likely between 40-80 seconds.


  EXPLANATION:The time is likely between 40-80 seconds.

By swirling the mint, this is agitating and creating a higher frequency of collisions between the saliva particles and mint particles, increasing the rate of dissolution. Therefore, the time is likely to be less than the mint cut in half but probably more than the mint when it is in small pieces.

7 0
4 years ago
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