How radar gun measuring the velocity, Physics

Assignment Help:

When a radar gun says the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity?

The measurement is made at the point where the ball is when the trigger is squeezed and the contacts close to make active the unit. The gun responds in a "split second" by sending out a pulse, catching the return, and then comparing the two to discover the dissimilarity (the Doppler shift). It is so fast that the ball doesn't travel very far in the time it takes the unit to respond and resolve the speed.

 


Related Discussions:- How radar gun measuring the velocity

Detremine the equivalent capacitance of the circuit, A 4μF capacitor is con...

A 4μF capacitor is connected in parallel with a 6μF capacitor. This arrangement is then linked in series with a 10μF capacitor. A supply p.d. of 250V is linked across the circ

Carrier distribution function , Find the carrier distribution function in t...

Find the carrier distribution function in the impurity level that accounts for the  spin degeneracy of the impurity states.

How fast is the submarine travelling - sound waves, A submarine is travelli...

A submarine is travelling toward a stationary detector. If the submarine emits a 260-Hz sound that is received by the detector as a 262-Hz sound, how fast is the submarine trav

Where does centre of gravity and centre of mass differ?, WHERE DOES C.O.G A...

WHERE DOES C.O.G AND C.O.M DIFFER?....GENERALLY BOTH COINCIDES....GIVE EXAMPLE WHERE BOTH DIFFER? Ans) C.O.G and C.O.M mainly coincides at the see-level region.But C.O.G is a va

Curie-weiss law, Curie-Weiss law (P. Curie, P.-E. Weiss) A more genera...

Curie-Weiss law (P. Curie, P.-E. Weiss) A more general shape of Curie's law, that states that the susceptibility, khi, of an paramagnetic substance is associated to its thermo

Tension in a string, two blocks of mass 2kg and 4 kg are held together by a...

two blocks of mass 2kg and 4 kg are held together by a string force of 10N is applied on 2kg and 20N on 4kg find the tension in the string connected between two blocks

Ideal gas constant and gas equation, ideal gas constant; universal molar ga...

ideal gas constant; universal molar gas constant; R The constant which acts in the ideal gas equation. It is 8.314 34 J/K/mol. ideal gas equation An equation that sums

Give one advantage of a scanning electron microscope, Give one advantage of...

Give one advantage of a scanning electron microscope over a transmission electron microscope? The SEM has become more popular than the TEM as it can make images of high resolut

Experiment vector and addition, how would the results change if the angle o...

how would the results change if the angle of the third load in second experiment increased ? state the differences

Where is the magnetic field strongest in bar magnet, Where is the magnetic ...

Where is the magnetic field because of a bar magnet strongest? Answer: This is just an experimental reality.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd