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givi [52]
2 years ago
10

Can we use position as another word for phase?

Physics
1 answer:
Yuri [45]2 years ago
6 0

Answer:

yes

Explanation:

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Two conducting spheres are each given a charge Q. The radius of the larger sphere is three times greater than that of the smalle
padilas [110]

Answer:

Explanation:

If E₀ is the electric field outside the smaller sphere and r is the radius of larger sphere.

E₀ = kQ/r²

The radius of the larger sphere is 3r and the charge on both sphere is same then the electric field outside the larger sphere is given as

E = kQ/(3r)² = kQ/9r² = 1/9 (kQ/r²)= 1/9 x E₀

hence the correct option is e.

5 0
3 years ago
Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant
Elena L [17]

Answer:

19 m/s

Explanation:

The complete question requires the final speed to be calculated.

Velocity is the rate and direction at which an object moves. Acceleration is the rate of change of velocity per unit time and can be calculated by the difference in velocity over a given time.

For this question, first the unknown acceleration must be calculated and used to determine the final velocity

Step 1: Calculate the acceleration

a=\frac{v_{2}-v{1}}{t_{1}}

a=\frac{11-7}{8}

a=\frac{4}{8}

a=0.5 m/s^{2}

Step 2: Calculate the velocity using the acceleration calculated above

a=\frac{v_{3}-v{2}}{t_{2}}

0.5=\frac{v_{3}-11}{16}

v_{3}=19 m/s

3 0
3 years ago
_____________ is the study of movement in athletes. A. Sports biomechanics B. Posture C. Dynamics D. Anatomy
liubo4ka [24]

Answer:

I believe its A: Sports biomechanics.

3 0
2 years ago
☆Will Give Brainliest☆
Masja [62]

Answer: :)

1.) The Doppler effect is, the change in sound or light that occurs whenever there is motion between the source and its observer. The siren of the fire engine has a lower pitch as it moves away because the waves are now spread out causing a lower frequency and a lower pitch.

2.) Wave frequency is related to wave energy. Since all that waves really are is traveling energy, the more energy in a wave, the higher its frequency. The lower the frequency is, the less energy in the wave.

5 0
3 years ago
A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum, brass, or copper. The values
marshall27 [118]

Answer:

C. Copper

Explanation:

F = Force on string

L_0 = Intial length of string

A = Area of string

E = Young's modulus of material

Change in length is given by

\Delta L=\frac{FL_0}{AE}

It can be seen that the change in length is inversely proportional to the Young's modulus of the material.

Here

E_a=0.7\times 10^{11}\ Pa

E_b=0.91\times 10^{11}\ Pa

E_c=1.1\times 10^{11}\ Pa

\\\Rightarrow E_c>E_b>E_a

So, copper will stretch the least.

5 0
3 years ago
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