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ololo11 [35]
3 years ago
10

How you brother and sister​

Physics
2 answers:
KatRina [158]3 years ago
8 0
It’s good how about you brother and sister
chubhunter [2.5K]3 years ago
7 0
Good, could I please get brainliest? I really need it:(
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.7 Quiz 1
never [62]

Answer: B> more relevant evidence

Explanation:

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a solution contains equal amounts of ammonia and ammonium chloride, and is buffered at a pH of 9.25. Which action will most stre
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Doubling the amounts of both ammonia and ammonium chloride is the action that will most likely strengthen the buffering capacity of a solution that contains equal amounts of ammonia and ammonium chloride, and is buffered at a pH of 9.25.

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3 years ago
A spaceship ferrying workers to moon Base i takes a straight-line pat from the earth to the moon, a distance of 384,000km, Suppo
GrogVix [38]

Answer:

95.78125%

18000 m/s

22233.33 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

v=u+at\\\Rightarrow v=0+20\times 15\times 60\\\Rightarrow v=18000\ m/s

The velocity of the rocket at the end of the first 15 minutes is 18000 m/s which is the maximum speed of the rocket in the complete journey.

Distance traveled while speeding up

s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=0\times t+\dfrac{1}{2}\times 20\times 900^2\\\Rightarrow s=8100000\ m

Distance traveled while slowing down

s=18000\times 900+\dfrac{1}{2}\times -20\times 900^2\\\Rightarrow s=8100000\ m

Distance traveled during constant speed

384000000-(2\times 8100000)=367800000\ m

Fraction

\dfrac{367800000}{384000000}\times 100=95.78125\ \%

Fraction of the total distance is traveled at constant speed is 95.78125%

Time taken at constant speed

t=\dfrac{367800000}{18000}=20433.33\ s

Total time taken is 900+20433.33+900=22233.33\ s

6 0
3 years ago
For each property listed, identify the type of element it describes. Very good electrical conductivity: Amphoteric, able to form
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The elements that is very good in electrical conductivity are gold and copper: elements that is amphoteric are copper, zinc, tin, lead, aluminum and beryllium: elements that is gaseous at room temperature are hydrogen, nitrogen, oxygen, fluorine and chlorine: elements that is solid at room temperature are all metal except mercury and perhaps some unseen radioactive elements. Lastly, elements that is brittle are hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur and selenium

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3 years ago
Read 2 more answers
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