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Maurinko [17]
3 years ago
9

Which statement is true about an object that sinks in water?

Physics
2 answers:
Rina8888 [55]3 years ago
5 0
A > Is the correct answer :)
IceJOKER [234]3 years ago
3 0
<span>Which statement is true about an object that sinks in water?
A.)It's weight is greater than the buoyant force.</span>
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A 20×10⁹charge is moved between two points A andB that are 30mm apart and have an electric potential difference of 600v between
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Answer:

90x20=1800

Explanation:

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What is the danger to spacecraft and astronauts from micrometeoroids?
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Answer:

Suppose the micrometeoroid weighed 1 g = .001 kg

Suppose also the spacecraft were moving at 18,000 mph (1.5 hrs per rev)

Usually, the smaller particle would be moving but for simplicity suppose that it were stationary wrt the ground

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One of the primary goals of the Kepler space telescope is to search for Earth-like planets. Data gathered by the telescope indic
amid [387]

Answer:

85.62 m

168.75 years

101.04 years

Explanation:

L_0 = Length of ship = 143 m

v = Velocity of ship = 0.8c

c = Speed of light

s = Distance to Boralis orbit = 135 ly

Gamma value

\gamma=\dfrac{1}{\sqrt{1-\dfrac{v^2}{c^2}}}\\\Rightarrow \gamma=\dfrac{1}{\sqrt{1-\dfrac{0.8^2c^2}{c^2}}}\\\Rightarrow \gamma=1.67

Length contraction is given by

L=\dfrac{L_0}{\gamma}\\\Rightarrow L=\dfrac{143}{1.67}\\\Rightarrow L=85.62\ m

The length is 85.62 m

Time taken

t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{135}{0.8}\\\Rightarrow t=168.75\ years

Time taken from the perspective one Earth is 168.75 years

Time dilation is given by

t'=\dfrac{t}{\gamma}\\\Rightarrow t'=\dfrac{168.75}{1.67}\\\Rightarrow t'=101.04\ years

The time taken from the perspective of the ship is 101.04 years

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poda patiiiiiiiiii tadiya kundiii

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