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4 years ago

When two light waves arrive at the same place at the same time they create a?

Physics

1 answer:

Montano1993 [528]4 years ago

3 0

Hey there,
They interfere essentially like any other form of wave.

Hope this helps :))

~Top

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A 0.260 m radius, 525 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a

Sophie [7]

Answer:

B = 0.37T

Explanation:

In order to calculate the needed magnitude of the magnetic force you use the following formula, which calculate the induced emf of the solenoid when there is a change in the magnetic flux:

$emf=-N\frac{\Delta \Phi_B}{\Delta t}=-N\frac{\Delta (BAcos\theta)}{\Delta t}$ (1)

emf: induced voltage in the solenoid = 10,000V

N: turns of the solenoid = 525

ФB: magnetic flux

B: magnitude of the magnetic field = ?

A: cross-sectional area of the solenoid = π*r^2

r: radius of the cross-sectional area = 0.260m

Δt: interval time of the change of the magnetic flux = 4.17ms = 4.17*10^-3s

First, you have the magnetic field direction perpendicular to the plane of the solenoid, after, the angle between them is 90° (quarter of a revolution)

In the equation (1) the only parameter that changes on time is the angle, then, you can solve for B from the equation (1):

$emf=-NBA\frac{cos(90\°)-cos(0\°)}{\Delta t}=\frac{NBA}{\Delta t}\\\\B=\frac{(\Delta t)(emf)}{NA}=\frac{(\Delta t)(emf)}{N(\pi r^2)}\\\\$

Finally, you replace the values of the parameters to calculate B:

$B=\frac{(4.17*10^{-3}s)(10000V)}{(525)(\pi(0.260m)^2)}=0.37T$

The strength of the magnetic field is 0.37T

7 0

3 years ago

Which is the correct symbol for an isotope of helium with 2 neutrons?

SIZIF [17.4K]

The correct symbol is 4He. You may also encounter it displayed as helium-4, He-4.

5 0

3 years ago

The foundation of psychology is? Case Studies O Experiments O Research O Analysis

Serggg [28]

Answer:

Case Studies

Explanation:

A case study in psychology is a descriptive research approach used to obtain in-depth information about a person, group, or phenomenon.Case studies use techniques such as personal interviews, direct observation, psychometric tests, and archival records to gather information.

4 0

4 years ago

What is one result of a chemical change?

nordsb [41]

One result of a chemical change is letter B: A new material is formed. Let us take for example on the paper being burned to ashes. There is a clear use of heat or thermal energy as heat is transferred from the medium to the paper, however, no energy is created, it only transformed to other energy. Materials may change but it could also happen to physical change like ice (which was in solid phase) turning or evaporating to water (liquid phase).

7 0

3 years ago

an object was accelerated with a force of 150 N from rest to a velocity of 10m/s in 5 sec. the force of friction opposing the ob

astra-53 [7]

Force = (mass) x (acceleration)

Mass = (force) / (acceleration)

There was 150N of force in one direction and 100N of 'force' in
the other direction. The net force on the object was (150 - 100) = 50N .

Acceleration = (change in speed) / (time for the change)
= (10 m/s) / (5s) = 2 m/s²

Mass = (net force) / (acceleration) = (50 N) / (2 m/s²) = 25 kilograms

7 0

3 years ago