## numbers, Physics

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John is traveling north at 20 meters/second
and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty''s speeds?

#### Kinematics, A body moving in the positive x direction passes the origin at ...

A body moving in the positive x direction passes the origin at time t=0. Between t=0 and t=1 second, the body has a constant speed of 24 meters per second. At t=1 second, the body

#### Explain unit of capacity, Unit of Capacity: The unit of capacity of a c...

Unit of Capacity: The unit of capacity of a capacitor is known as farad (f). It is given by a relation. q = cv.

#### What is meant by the electric flux through a closed surface, In expressions...

In expressions of the conventional graphical representation of an electric field which of the following conceptual statements best represents what is meant by the electric flux thr

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#### The effects of short circuits, The effects of short circuits: A short c...

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#### Reduce the expression for expected fringe shift, Deduce the expression for ...

Deduce the expression for expected fringe shift in Michelson Morley experiment. Discuss the result of experiment.

#### Find also the power rating of the kettle - conductors, An electric kettle h...

An electric kettle has a resistance of30?. What current will ?ow when it is connected to a 240V supply? Find also the power rating of the kettle   A current of 5A ?ows i

#### How much power is delivered by machine, A machine performs 8 Joules of work...

A machine performs 8 Joules of work in 2 seconds. How much power is delivered by this machine? Ans: The power is delivered by this machine is 4 watts.

#### Explain electroplating, It is a method of depositing a thin layer of one me...

It is a method of depositing a thin layer of one metal over one more metal by the method of electrolysis. The articles of cheap solids are coated with valuable metals like silver a

#### Magnification in scanning electron microscope, How is magnification in scan...

How is magnification in scanning electron microscope controlled? Magnification in scanning electron microscope: Magnification into a SEM (scanning electron microscope) can b