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Romashka-Z-Leto [24]
3 years ago
11

3. Which of the following objects can be used to complete this broken electric circuit and make the light bulb glow?

Physics
1 answer:
Triss [41]3 years ago
5 0

Answer:

answer is iron rod bcoz its a conductor.

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Answer:

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Explanation:

8 0
3 years ago
If all else is constant, which would cause the greatest increase in kinetic energy of a moving object?
Maru [420]
When mass is doubled, KE is doubled.
When speed is doubled, KE becomes 4 times as great.
When both are doubled (last choice), KE is multiplied by 8 .
6 0
4 years ago
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If y = 0.02 sin (30x – 200t) (SI units), the frequency of the wave is
leva [86]

Answer:

31.831 Hz.

Explanation:

<u>Given:</u>

  • \rm y = 0.02\sin(30x-200 t).

The vertical displacement of a wave is given in generalized form as

\rm y = A\sin(kx -\omega t).

<em>where</em>,

  • A = amplitude of the displacement of the wave.
  • k = wave number of the wave = \dfrac{2\pi }{\lambda}.
  • \lambda = wavelength of the wave.
  • x = horizontal displacement of the wave.
  • \omega = angular frequency of the wave = \rm 2\pi f.
  • f = frequency of the wave.
  • t = time at which the displacement is calculated.

On comparing the generalized equation with the given equation of the displacement of the wave, we get,

\rm A=0.02.\\k=30.\\\omega =200.\\

therefore,

\rm 2\pi f=200\\\\\Rightarrow f = \dfrac{200}{2\pi}=31.831\ Hz.

It is the required frequency of the wave.

3 0
3 years ago
What will be the acceleration of a 40-kilogram object that is pushed with a net force of 80 newtons?
ratelena [41]
= 80 N/40 kg
= 2 m/s 2
4 0
3 years ago
Which force always pulls downward on objects?
oksano4ka [1.4K]
Gravity. Hope this helps!
6 0
4 years ago
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