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Tanzania [10]
3 years ago
13

PLEASE HELP WILL GIVE EXTRA POINTS

Physics
1 answer:
wolverine [178]3 years ago
6 0
Sorry but you tell me not to ask for help or answers but you want them yourself
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What are 3 reasons gravity is important? Answer quickly please
allsm [11]

Answer:

Now you know gravity is a major force in the universe. It keeps us from floating away, controls the ocean's tides, guides plant growth, keeps Earth and other planets in orbit.

Explanation:

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3 years ago
Technician A says that the rotary engine is not an internal combustion engine, because it does not use pistons. Technician B say
Rama09 [41]

Answer:

Technician B

Step-by-step explanation:

Rotary engine, also known as Wankel, is an internal combustion engine as the definition of inernal combustion is <em>any machine that uses energy from chemical links and transforms it in mechanical work through combustion inside it.</em>

The rotary engine gets three power pulses for each rotation because it can compress, intake/exhaust, and expand at the time in diferent parts of the engine, separated by the tree edges of the triangular rotor.

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3 years ago
You are asked to design a spring that will give a 1070 kg satellite a speed of 3.75 m/s relative to an orbiting space shuttle. Y
Dvinal [7]

Answer:

380697.33\ \text{N/m}

0.138\ \text{m}

Explanation:

m = Mass rocket = 1070 kg

v = Velocity of rocket = 3.75 m/s

a = Acceleration of rocket = 5g

g = Acceleration due to gravity = 9.81\ \text{m/s}^2

The energy balance of the system is given by

\dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2\\\Rightarrow kx=\dfrac{mv^2}{x}\\\Rightarrow kx=\dfrac{1070\times 3.75^2}{x}\\\Rightarrow kx=\dfrac{7250}{x}

The force balance of the system is given by

ma=kx\\\Rightarrow m5g=\dfrac{7250}{x}\\\Rightarrow x=\dfrac{7250}{1070\times 5\times 9.81}\\\Rightarrow x=0.138\ \text{m}

The distance the spring must be compressed is 0.138\ \text{m}

k=\dfrac{7250}{x^2}\\\Rightarrow k=\dfrac{7250}{0.138^2}\\\Rightarrow k=380697.33\ \text{N/m}

The force constant of the spring is 380697.33\ \text{N/m}.

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3 years ago
How does density affect the behavior of an object in a liquid or a gas?
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According to Archimedes' Principle, an Object's density determines the depth it will get by displacing the liquid or gas molecules... More the density, more it's depth.
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The magnetic field on the Sun is created by _____.
ExtremeBDS [4]
It would be the flowing charged plasma blowing off the sun's surface as solar wind that creates the magnetic field.
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3 years ago
Read 2 more answers
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