3 years ago

True or False. Electromagnetic waves travel fastest through a vacuum.

Physics

1 answer:

olya-2409 [2.1K]3 years ago

4 0

This
is
true
Electromagnetic waves travel fastest through vacuum

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How does SCOTUS view information obtained by private citizens and subsequently shared with law enforcement?

scoundrel [369]

Answer:

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If a tomato is considered a fruit... then is ketchup considered a smoothie?

Anna71 [15]

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faust18 [17]

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IrinaK [193]

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3 years ago

ow long must a simple pendulum be if it is to make exactly ten swings per second? (That is, one complete vibration takes exactly

Igoryamba

The period T of a pendulum is given by:
$T=2 \pi \sqrt{ \frac{L}{g} }$
where L is the length of the pendulum while $g=9.81 m/s^2$ is the gravitational acceleration.

In the pendulum of the problem, one complete vibration takes exactly 0.200 s, this means its period is $T=0.200 s$ . Using this data, we can solve the previous formula to find L:
$L=g ( \frac{T}{2\pi} )^2=(9.81 m/s^2)( \frac{0.2 s}{2 \pi} )^2=1 \cdot 10^{-3} m=1 mm$

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3 years ago