2 years ago

Are the phases of the moon the same everywhere on earth

Physics

1 answer:

timama [110]2 years ago

4 0

Yes. Everybody on Earth sees the same moon phase at the same time.

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A 1.120 kg car is traveling with a speed of 40 m/s. find its energy

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Answer:

896 kJ

Explanation:

KInetic Energy = 1/2 m v^2

= 1/2 (1120)(40^2) = 896 000 J or 896 kJ

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1 year ago

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The answer is 45 degrees

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An event occurs in system K' at x' = 2 m, y' = 3.7 m, z' = 3.7 m, and t' = 0. System K' and K have their axes coincident at t =

fiasKO [112]

Answer:

Coordinates of event in system K are (x,y,z,t)=(5.103m , 3.7m , 3.7m , 1.57×10⁻⁸s)

Explanation:

To find the coordinates of event in system K ,we have to use inverse Lorentz transformation

$x=\frac{x^{|}+vt^{|} }{\sqrt{1-\frac{v^{2} }{c{2} } } } \\x=\frac{2m+0.92c(0) }{\sqrt{1-\frac{(0.92c)^{2} }{c{2} } } }\\x=5.103m\\y=y^{|}\\ y=3.7m\\z=z^{|}\\ z=3.7m$

for t

$r=\frac{1}{\sqrt{1-v^{2} } } \\r=\frac{1}{\sqrt{1-(0.92)^{2} } } \\r=2.551\\t=r(t^{|}+vx^{|}/c^{2} )\\t=2.551(0s+(0.92c)(2)/c^{2} )\\t=1.57*10^{-8}s$

Coordinates of event in system K are (x,y,z,t)=(5.103m , 3.7m , 3.7m , 1.57×10⁻⁸s)

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3 years ago

When determining the number of significant digits in a measurement,

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B) All nonzero digits are significant.

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