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3 years ago

What is the reason behind superposition?why waves behave this way?

Physics

1 answer:

marshall27 [118]3 years ago

4 0

Explanation:

Most waves appear complex because they result from two or more simple waves that combine as they come together at the same place at the same time—a phenomenon called superposition. Waves superimpose by adding their disturbances; each disturbance corresponds to a force, and all the forces add

introurself please

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The gap between electrodes in a spark plug is 0.060 cm. Producing an electric spark in a gasoline-air mixture requires an electr

Mandarinka [93]

Answer:

The magnitude of minimum potential difference is 1800 V

Explanation:

Given:

Electric field $E = 3 \times 10^{6} \frac{V}{m}$

Gap between electrodes $d = 0.060 \times 10^{-2}$ m

For finding the minimum potential difference,

$\Delta V = E \times d$

$\Delta V = 3 \times 10^{6} \times 0.060 \times 10^{-2}$

$\Delta V = 1800$ V

Therefore, the magnitude of minimum potential difference is 1800 V

8 0

3 years ago

A solid cylindrical object has a mass of 2.0 kg, a diameter

omeli [17]

Answer:

I = 0.0025 kg.m²

Explanation:

Given that

m= 2 kg

Diameter ,d= 0.1 m

Radius , $R=\dfrac{d}{2}$

$R=\dfrac{0.1}{2}$

R=0.05 m

The moment of inertia of the cylinder about it's axis same as the disc and it is given as

$I=\dfrac{mR^2}{2}$

Now by putting the all values

$I=\dfrac{2\times 0.05^2}{2}$

I = 0.0025 kg.m²

Therefore we can say that the moment of inertia of the cylinder will be 0.0025 kg.m².

4 0

3 years ago

What is the acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg

Marrrta [24]

Answer:

The acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 3.2 m/s².

Explanation:

Given

Force F = 4000 N

Mass m = 1240 kg

To determine

Acceleration a = ?

Important Tip:

The acceleration of a boat can be found using the formula F = ma

Using the formula

$F = ma$

where

F is the force (N)

m is the mass (kg)

a is the acceleration (m/s²)

now substituting F = 4000, m = 1240 in the formula

$F = ma$

$4000\:=\:1240\:\times a$

Switch sides

$1240a=4000$

Divide both sides by 1240

$\frac{1240a}{1240}=\frac{4000}{1240}$

Simplify

$a=\frac{100}{31}$

$a=3.2$ m/s²

Therefore, the acceleration of a boat if the resultant force on it is 4000 N and its mass is 1240 kg is 3.2 m/s².

5 0

3 years ago

Please help me

-Dominant- [34]

Answer:

D) Aerobic respiration is very efficient and produces a large amount of energy, while anaerobic respiration is not very efficient and produces a small amount of energy.

Explanation:

Anaerobic respiration, which uses glucose and no oxygen, produces less energy compared to aerobic respiration.

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3 years ago

Read 2 more answers

A 780 g , 54-cm-long metal rod is free to rotate about a frictionless axle at one end. While at rest, the rod is given a short b

evablogger [386]

Answer:

The angular velocity is 35.5 rad/s.

Explanation:

Step 1: Find the moment of Inertia for the rod

The moment of inertia, I, of a rod:

$I=\frac{1}{12} ML^{2}$ .......... (1)

where M = mass of rod (0.78 Kg); L = Length of rod (0.54 m).

$I=\frac{1}{12} (0.78)(0.54)^{2} =0.019\frac{Kg}{m^{2} }$

Step 2: Calculate the angular acceleration from Rotational kinetic notation

F.r = I.α ........... (2)

where F is the force acting upon the rod; r is the half length of the rod; I is the moment of Inertia and; α is the angular acceleration.

∴ (1000 N)(0.27 m) = 0.019α

α = 270 Nm / 0.019 Kgm²

α = 14210.5 rad/s

Step 3: We find the angular velocity by using the equation below:

ωf = ωi + αt ......... (3)

where

ωf is the angular velocity after the blow

ωi is the angular velocity before the blow = 0

t is the time taken for the blow to occur = 2.5 ms

ωf = 0 + (14210.5 rad/s)(2.5 ms) = 35.5 rad/s.

6 0

3 years ago