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BaLLatris [955]
3 years ago
14

Newtons law of garvitation is known as universal law. Why​

Physics
1 answer:
xeze [42]3 years ago
5 0

Answer:

It is called so because it is applicable on all bodies having mass, and the bodies will be governed by the same law, that is newton's law of gravitation. Thus, as it is applicable universally, it is called as universal law.

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7. Explain how changes in temperature affect the particle motion of a substance. (3 points)
Morgarella [4.7K]

Answer:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of theparticles determines the state of matter of thesubstance. The end result of increased molecular motion is that the object expands and takes up more space.

6 0
3 years ago
Why was Alessandro Volta's battery important to the evolution of electromagnetics and on the present
Sonbull [250]
Alessandro Volta's battery was a simple and reliable source of electric current, which allowed scientists to study electricity better than they could with previous sources, such as the Leyden jar, and allowed the development of new technology powered by electricity.
3 0
3 years ago
How do you calculate distance using deceleration and time?​
Effectus [21]

Answer:

U = initial velocity, t = time taken, s = distance covered. Deceleration Formula is used to calculate the deceleration of the given body in motion.

6 0
3 years ago
A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area of 0.700 m2 .
Darina [25.2K]

Answer:

The  value is  E =  8.9 *10^{-5} \  J

Explanation:

From the question we are told that

   The  area is  A =  0.700 \  m^2

   The  root mean square value  is E_{rms} =  0.0400 \  V/m

   The time taken is t =  30.0 \  s

Generally the energy is mathematically represented as

     E =  c *  \sepsilon_o *  A  *  t  * E_{rms}^2

=>    E =  3.0*10^{8} *  8.85*10^{-12} *  0.700 *  30 * (0.04)^2

=>     E =  8.9 *10^{-5} \  J

     

3 0
3 years ago
A row of seats is parallel to a stage at a distance of 90 m from it. At the center and front of the stage is a diffraction horn
Serggg [28]

Answer:

distance between seats = 2*11.10 = 22.20 m

Explanation:

seats row is parallel to a stage with a distance d = 90 m

doorway width = 0.070 m

speaker frequency = 4.00 * 10^4 Hz

Speed of sound = 343 m/s

tone will be heard at

sin \theta = \frac{\lambda}{D}

we know that v =\lambda d

so

sin\theta = \frac{v}{dD}

              = \frac{343}{4.00 * 10^4*0.070}

sin\theta = 0.1225

\theta = 7.036 degree

tan\theta =\frac{x}{d}

[tex]x = d*tan\theta = 90*0.1234 = 11.10 m

distance between seats = 2*11.10 = 22.20 m

7 0
3 years ago
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