You are driving on the freeway when a police officer records a shift of −7 nm when he or she measures your speed with a radar gun that operates at a wavelength of 0.1 m. How fast were you going?

1.0493 m/s

Explanation:

Formula for this problem is

Where,

Shift F = -7 nm = -7 × m

F=0.1 m

C= speed of light = 2.998 ×

V= Object's (he/she) speed

Putting values;

==> -7 ×  ÷  0.1  = 2V ÷ 2.998 ×

==> -7 × 2.998 × = 2V × 0.1

==> - 2.0986 = 0.2 V

==> V =-1.0493 m/s

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.