4, Physics

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Describe motion in two dimensions, Motion of an object in a plane is called...

Motion of an object in a plane is called two dimensional (2-D) motions. For 2-D motion acceleration or velocity can be explained by two elements in any two mutually perpendicular d

Explain electric current, Electric Current: Electric current may be des...

Electric Current: Electric current may be described as the rate of flow of charge. I=q/T Where, I = electric current q = charge T = time The unit of current i

What is the maximum height reached by the ball, In an attempt to make a 3-p...

In an attempt to make a 3-point shot from a distance of 6.00 m, a basketball player lofts the ball at an angle of 68° above the horizontal. The ball has an initial velocity of 10.0

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What is the wavelength of electromagnetic waves, What is the wavelength of ...

What is the wavelength of electromagnetic waves of frequency 5 x 1019Hz in free space? Give its two applications.

What is dispersion, What is dispersion? Dispersion within optics consi...

What is dispersion? Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation o

Laser diode, why do we need degenerate semiconductor to fabricate a laser d...

why do we need degenerate semiconductor to fabricate a laser diode?

Policy management of economic recovery, When the economy experiences a down...

When the economy experiences a downfall, the government knows exactly which policies will spur an economic recovery. Often policymakers fail to take the right decisions for both

What is the current in the circuit, In the circuit shown below, a potentiom...

In the circuit shown below, a potentiometer is used to vary the current to the lamp. If the only resistance is due to the lamp, what is the current in the circuit?

How much should be the voltage of an x-ray tube, Q. How much should be the ...

Q. How much should be the voltage of an X-ray tube so that the electrons emitted from the cathode may give an X-ray of wavelength 1 A o after striking the target?  λmin = 124

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