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ratelena [41]
3 years ago
12

WILL MARK BRAIN A=154 B=145 C=26 D=206

Physics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

154

Explanation:

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False as oxygen is the second most abundant and nitrogen is the most abundant at 78%.
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If the frequency of a periodic wave is doubled, the period of the wave will be
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Your brother is insisting that you’ll never hear a sound produced behind a barrier wall at the end of your yard you notice that
Tresset [83]

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D.Diffraction

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3 years ago
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in the derivation of the time period of a pendulum in electric field when considering the fbd of bob to find the g effective why
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we learned that an object that is vibrating is acted upon by a restoring force. The restoring force causes the vibrating object to slow down as it moves away from the equilibrium position and to speed up as it approaches the equilibrium position. It is this restoring force that is responsible for the vibration. So what forces act upon a pendulum bob? And what is the restoring force for a pendulum? There are two dominant forces acting upon a pendulum bob at all times during the course of its motion. There is the force of gravity that acts downward upon the bob. It results from the Earth's mass attracting the mass of the bob. And there is a tension force acting upward and towards the pivot point of the pendulum. The tension force results from the string pulling upon the bob of the pendulum. In our discussion, we will ignore the influence of air resistance - a third force that always opposes the motion of the bob as it swings to and fro. The air resistance force is relatively weak compared to the two dominant forces.

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that's what I know so far

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3 years ago
Do heavier objects fall more slowly than lighter objects?
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Think of it like this, gravity has to pull harder on the heavier object to make them fall at the same rate , but doesn't have to pull as hard for the lighter object , thus is why sometimes heavier objects fall faster then lighter ones
8 0
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