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daser333 [38]
3 years ago
11

A scientist adds different amounts of salt to 5 bottles of water. She then

Physics
2 answers:
Vika [28.1K]3 years ago
7 0
A. The time it takes for the water to boil.

because that is what you are testing
kolezko [41]3 years ago
3 0
A. the time it take for the water to boil
that’s what i got
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During your summer internship for an aerospace company, you are asked to design a small research rocket. The rocket is to be lau
Viktor [21]

Answer:

6.75 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration = 16 m/s²

g = Acceleration due to gravity = 9.81 m/s²

Let y be the distance the rocket is accelerating

960-y is the distance traveled in free fall

v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 16\times y+0^2}\\\Rightarrow v^2=32y\ m/s

In free fall

v^2-u^2=2g(960-y)\\\Rightarrow 0-32y=2g(960-y)\\\Rightarrow -32y=2\times -9.81(960-y)\\\Rightarrow 960-y=\dfrac{-32}{2\times -9.81}y\\\Rightarrow 960-y=1.63098878695y\\\Rightarrow 960=2.63098878695y\\\Rightarrow y=\dfrac{960}{2.63098878695}\\\Rightarrow y=364.881828749\ m

The distance the rocket will keep accelerating is 364.881828749 m

After which it will travel 960-364.881828749 = 595.118171251 m in free fall

s=ut+\frac{1}{2}at^2\\\Rightarrow 364.881828749=0t+\frac{1}{2}\times 16\times t^2\\\Rightarrow t=\sqrt{\frac{364.881828749\times 2}{16}}\\\Rightarrow t=6.75353452598\ s

The time the rocket is accelerating is 6.75 seconds

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Who invented the circuit?
Gre4nikov [31]
Jack Kilby invented the circuit
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I need help one through five
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Thinking critically is basically thinking outside of the box, so it's asking how does the bulub filament change after it's on, a filament is basically the wiring inside.
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The complete process for learning through repetition is to read, write, say, rest and revisit the information. T or F.
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Answer: The given statement is True.

Learning means change or modification in the behavior of an individual that is obtained by getting new information, knowledge, skills or different experiences throughout the life.

There can be different learning styles like visual ( using pictures and images), verbal ( like repetition or rehearsal), social ( in groups), logical ( using reasoning) that could be adopted by different individuals.

The information can be memorized through repetition of the information by continuously reading, writing, speaking, and revisiting it.


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3 years ago
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